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1. 30 68 36 02 30 68 36 02 Setupl Hysteresis uv Oe 1568 32 1568 92 Setup1 Hysteresis 4 26 88 25 88 Setup1 Max Hyst pv 16 06 16 06 Setup1 Max Hyst At 81 04 81 04 13 43 13 43 Setup Asym At Test 2 27 27 27 27 Setupl Hyst At Test 7 1 61 Setupl Hyst At Test i D 431 51 1 61 Es 51 Setup1 Barkh Jump At 13 44 13 44 Chim Dll At Tamat IA He 10031 Figure 7 2 ESD Sweep Transfer Curve Plot ann 49 See Quasi97 External Tests manual for more information how to ESD Sweep test Page 22 EPS 100 Manual Integral Solutions Int l August 22 2013 8 Bar ESD Stress Option The ESD Stress option can also be mounted on the BlazerX5 bar tester for testing heads while they are still on the row bar This arrangement requires standard PCI 6503 card and EPS 100 modules It also required modified waveform module stress probe card base and stress probe card Figure 8 1 Bar ESD Stress Option This manual will describe the installation of the ESD stress option onto the BlazerX5 bar tester instructions on changing the waveform module and monitoring the ESD waveform For ESD Stress probe card alignment and setting up stress positions please refer to BlazerX5 Users Manual 8 1 Bar ESD Option Installation For installation turn off the BlazerX5 1 Install PCI 6503 card in one of the available PCI slots in t
2. After Installing the NI DAQ software run Measurement and Automation Explorer from your Desktop 3 to Devices and Interfaces click View Refresh Page 4 EPS 100 Manual Integral Solutions Int l August 22 2013 4 new PCI 6503 card should appear on the list Click on the PCI 6503 card then Properties the software will verify the card 5 After than close Measurement and Automation Explorer and Start Quasi97 Bi File Edit View Tools Help 7 EA n a F Properties gl Delete BB test Pane yt Hide Help Ex My System zi T B rosca Attribute value Description ral 2 Devices and Interfaces Device Number 1 The NI DAQ device number aj B GPIBO PCI GPIB FY Serial Number 0x1083060 The serial number of the device DAQ Device m NI Motion Devices Ra i gia PCI 6503 Device 1 E IVI Instruments H B Scales What do you want B Software ax E ei ae Remote Systems System Accessory evice Number f 2 Assign a device Pun the DAG Test al number to the Panels device and check sources assign system em gt sFE AFADOO FE 4FAFFF resources Bemove the ethe DOO OxFE 4FRFFF device OxFE4FBO0 Te Be View or change Memory Access 2 device properties Cancel FS Attributes Figure 2 1 Measurement and Automation Explorer The 50pin ribbon cable with t
3. the board with the CDM chassis Fire a 1 10 and 20V pulses and verify the amplitude pulse width and rise time against CDM standard Page 10 EPS 100 Manual Integral Solutions Int l August 22 2013 BlazerX5 version of the CDM waveform module has pogopins on the other side of the board For verification of the waveform the module has to be mounted on the support plate and the calibration disk should be mounted on a shim as shown on the picture below G Qo Figure 4 7 BlazerX5 CDM Calibration 1 CDM Waveform Module 2 Support Plate 9 Calibration Disk 10 Special Shim 12 Screw 13 Flat washer Page 11 EPS 100 Manual Integral Solutions Int l August 22 2013 4 5 CDM Operation The following block diagram is provided for better understanding of the operation of the waveform module It is created to show the charge device model ESD standard The actual waveform module circuit may be slightly different CTG N I 1 WY LL 200K ohm 40 Chem O 53 PS 100 CDM Waveform Module L1 T im Wa Wwe ai GST Figure 4 8 CDM Block Diagram To fire pulse 1 2 3 S1 UP S2 DN S3 UP wait 100mS S1 DN To test 1 SI DN S2 UP S3 DN Page 12 EPS 100 Manual Integral Solutions Int l August 22 2013 5 Machine Model MM 5 1 Mechanical Alignment MM cartridge does not require a special mechanical alignment It connects to the board with pogo pins on th
4. bias current goes though the DC cables Use Static Test Aux Point Test to measure resistance of the heater in ESD and non ESD configuration 5 Mar Bz 1 19 33 585 _ ns 24 Elm _ 10 sweeps average low high sigma mae LUM Ce 110 4 109 9 111 1 0 4 minimumi l 2mwy z H H T H 4 Figure 6 2 HBM 50V with 500Ohm Resistor Page 18 EPS 100 Manual 6 2 ESD Standard Human Body Model charges 100pF capacitor and fires accumulated charge through the 1500Q resistor into the head The standard shown here applies to pulses produced by ISI HBM waveform modules and should treated as such CURRENT IN AMPERES a Pulse rise time t Voltage Level MR for Short IpsoooQ MR for 500 2 Vpgak on RI for Short IpgAk 1500 1000 RI for 5002 Ipgak 1500 500 1000 Rise Time for Short t Rise Time for 5002 Decay Time for Short ta Decay Time for 500 2 Ringing Current Ig CURRENT 5 Nanoseconds per division IN AMPERES m 5 V V nS nS mA N N 4 2 5 15 2 63 4 2 6 3 7 7 5 25 8 4 2 10 5 25 130 170 160 240 15 of Ips Figure 6 3 Short and 5000hm HBM Standard 100 Nanoseconds per division Integral Solutions Int l August 22 2013 50 30 36 7 18 75 30 45 55 37 5 60 RI is 15000 Resistor in series with the MR head inside the HBM
5. discharged through R side For CDM module the head is charged through R and then R side is grounded and R remains floating during discharge So the active pin is different on CDM vs HBM MM but the polarity of the pulse remains the same on all module types Page 28 EPS 100 Manual Integral Solutions Int l August 22 2013 9 High Field ESD Stress Option HBM and MM ESD modules are fully compatible with High Field tester CDM module requires a rework For more information and operation specifications please refer to QST 2002 HF User s Manual 10 Contact Information Integral Solutions Int l 3000 Olcott St Santa Clara CA 95054 Phone 408 653 0300 Fax 408 653 0309 E mail 1S1 us isi com Web http www us isi com Page 29 EPS 100 Manual 11 Table of Figures Figure 1 CDM Mechanical Alignment Figure 2 Monitoring CDM Pulse fired into real head Figure 3 CDM CT 6 Figure 4 CDM Standard Figure 5 CDM Waveform 5pF Capacitor Figure 6 CDM Cartridge Calibration Figure 7 BlazerX5 CDM Calibration Figure 6 CDM Block Diagram Figure 9 MM HBM Mechanical Alignment Figure 10 Monitoring MM Pulse Figure 11 MM 50042 Discharge Figure 12 Short and 5002 MM Standard Figure 13 New Style MM HBM Calibration Figure 14 MM 10V Discharge into a OOhm Resistor Figure 15 MM Block Diagram Figure 16 Monitoring HBM Pulse Figure 17 HBM SOV with 5000hm Resistor Figure 18 Short and 5000hm HBM Standard Figure 19 Old Style MM HB
6. 1 22 23 23 25 27 28 29 29 30 EPS 100 Manual Integral Solutions Int l August 22 2013 1 Hardware Description ESD Hardware Option is designed as an add on to ISI QST 200x testers to study sensitivity of magneto resistive heads to electro static discharge ESD stress can only be done at HGA level and can be run in either standalone mode or as part of QST test ESD option consists of EPS 100 and waveform module EPS 100 is a power supply capable of producing 100V with 0 003V resolution It is universal for all waveform modules Due to calibration for more precise HBM and MM amplitude the waveform module may require voltages slightly higher than 100 which is not supported by EPS 100 Therefore the maximum HBM and MM firing voltage is 90V Waveform module is responsible for producing a pulse of a known shape using one of the standard ESD models and switching the head from stressing to testing There are three standard types of waveform modules Charge Device Model CDM Human Body Model HBM and Machine Model MM Newer waveform modules are located directly on the 2xHGA cartridge in close proximity to the head and are called cartridge style Such modules can be run standalone or mounted on 2x tooling directly for testing Older type module is an add on to QST that has two 6 pin cables running to standard QST 2xHGA cartridge and is called a box style module HBM and MM box style waveform modules do not support any
7. AC measurements These modules are no longer manufactured however EPS 100 supports them as well A special adapter board for EPS 100 is required to run the box style waveform modules HBM and MM modules are universal for any flex design custom mechanics that are required for different heads are located on the cartridge So HBM and MM waveform modules can be freely interchanged on one cartridge CDM waveform module on the other hand requires unique mechanical configuration for each flex design and cannot be mounted on HBM MM cartridge EPS option was designed to work with the automated ESD Sweep test The test uses EPS to generate controlled ESD transients and measures head parameters between the pulses to find ESD failure threshold voltage Any QST 200x test including AC measurements can be used to characterize the head and find the ESD failure threshold QST test requires a QST 200x and either 2xHGA tooling for cartridge style waveform modules or 8xHGA tooling for box style To enable this test add ESDApp Application to Quasi97 gt Selected Modules and enable it Important It is not recommended to expose any waveform module to magnetic fields higher than 250Oe When running QST tests with waveform module close to the magnet make sure that magnetic field from the QST magnet does not cause field near waveform modules to exceed 2000 On standard 2 pole HS A HGA magnet the module is physically inside the magnet so 2500e limit applies Ho
8. M Calibration Figure 20 Real HBM Discharge on OOhm resistor Figure 21 HBM Block Diagram Figure 22 ESD Sweep Figure 23 ESD Sweep Transfer Curve Plot Figure 24 Bar ESD Stress Option Figure 25 EPS 100 BlazerX5 Installation Figure 26 EPS 100 BlazerX5 Installation 2 Figure 27 EPS 100 BlazerX5 Installation 3 Figure 26 BlazerX5 HBM MM Connecting CT 6 Figure 29 BlazerX5 HBM MM Connecting CT 6 2 Figure 30 BlazerX5 HBM MM Connecting CT 6 3 Figure 31 BlazerX5 HBM MM Connecting CT 6 4 Figure 32 Changing the Waveform Module BlazerX5 Figure 33 CDM Waveform Module BlazerX5 Figure 34 Bar ESD Software Control Diagram Page 30 Integral Solutions Int l August 22 2013 CONN O 10 12 13 14 14 15 16 16 17 18 18 19 20 20 21 22 22 23 23 24 24 Zo 29 29 26 27 27 28
9. apacitor 1 82 ie 2 2156 125 2387 pF Calibration Capacitor yn i a a Other parameters can be checked at 10V CDM 5 _ a Width at 50 of 1 1 700 ps 1000 ps nd Max 2 peak lt 50 Ip lt 50 1 Max 3 peak 2590 Ip lt 25 Ip The values above were measured using LeCroy LC574A lI Ghz oscilloscope We expect that faster oscilloscope would show slightly higher amplitude and smaller pulse width Figure taken from Standardized Direct Charge Device ESD Test For Magneto resistive Recording Heads II Lydia Baril Tim Cheung Albert Wallash The waveform rise time and width is overall 5 higher at bar CDM then on 2xHGA because calibration capacitor is mounted in different location Page 8 Integral Solutions Int l EPS 100 Manual August 22 2013 The following plot shows real 20V CDM discharge on 5pF calibration capacitor 13 Mar 82 22 10 05 2 ns 2 HB mV 10 sweeps average low high sigma maximum 1 055 V 8 341 1 079 0 041 minimumi 137m 159 121 18 Figure 4 5 CDM Waveform 5 Capacitor Page 9 EPS 100 Manual Integral Solutions Int l August 22 2013 4 4 Calibration Use one of the calibration capacitors to verify the CDM waveform Turn on the EPS 100 If running Quasi97 software then exit from it and run EPS 100 application Also remove the CDM cartridge from the 2xHGA tooling To install a calibration board remove the HGA flex clamp a
10. e cartridge through a short cable The waveform module can be connected to only one head at a time In the case where cartridge has two pogo pin boards for up and down heads connect the cable from one or the other board to the waveform module Figure 5 1 MM HBM Mechanical Alignment To switch from MM to HBM simply remove the two screws on the topside of the waveform module and disconnect three cables from it EPS 100 cable QST and pogo pin board connection The waveform module should come off and you can install another one HBM or MM in its place On 2xHGA Gen2 HBM MM ESD cartridges do support heater testing the aux bias current goes though the DC cables Use Static Test Aux Point Test to measure resistance of the heater in ESD and non ESD configuration Page 13 EPS 100 Manual Integral Solutions Int l August 22 2013 5 2 Monitoring Waveform To monitor current going through the head install a CT 1 probe on the wire going from J4 Pin2 on the cartridge style waveform module to the FIC board For the box style modules mount CT 1 on the wire going from pin2 of HEAD connector on waveform module Figure 5 2 Monitoring MM Pulse The following screenshot shows a 10V discharge into 500Ohm resistor 20 02 18 53 25 EN ANM gt PT i BENI ly e 2H ns BIL Figure 5 3 MM 500 Discharge Page 14 EPS 100 Manua
11. e flex is centered but the suspension and therefore HGA is pivoted This means there may be an offset top view of both the UP and DN sliders and each may be at an angle mirror image top view The offset user can manually compensate by moving the magnet left or right However the angle will be an issue For Transverse testing this is no problem assuming the MR itself is centered in the gap But for rotating fields the head will see different result than if the head was placed perpendicular into the gap So for Quad Pole and HGA only magnets user must ensure that the MR element is within the uniform zone of the magnet gap Secondly Transverse only field is recommended if the suspension is at any angle to the magnet other than 90degrees Page 6 EPS 100 Manual Integral Solutions Int l August 22 2013 4 2 Monitoring Waveform CDM waveform module charges the head to desired voltage and then grounds it which creates a very fast current transient from the charge accumulated on the head The pulse is very fast with the rise time up to 500pS and pulse width up to InS The screenshot below is 5V CDM pulse fired into a real head 18 Feb 82 19 02 09 LeCroy 2 1 ns BB mV 183mV ns 1 S my DC mv 500 16 GS s 3 58 mY DC T 2 DC 15mV 4 580 mv AC STOPPED Figure 4 2 Monitoring CDM Pulse fired into real head The shape and amplitude of the pulse you see on the screenshot is going to depend on the elec
12. ed for calibration See HBM calibration for a picture of box style waveform module calibration Note that the same ESD waveform specification applies to both cartridge and box style MM 16 Apr 03 MEASURE 11 30 51 2 ew ns TZ mV iE Hine ns isabled At 83 32 n 12 883 MHz ra d 4 GS s disabled 2 OC 0 116 V SLOW TRIGGER di NORMAL Figure 5 6 MM 10V Discharge into a OOhm Resistor Page 16 EPS 100 Manual Integral Solutions Int l August 22 2013 5 5 MM Operation The following block diagram is provided for better understanding of the operation of the waveform module It is created to show the machine model ESD standard The actual waveform module circuit may be slightly different A h ON VY Z DUK ohm EPS 100 Figure 5 7 MM Block Diagram To fire pulse 1 S2 Right SI Right S3 Up 2 wait 100mS 3 S2 Left To test device 1 S3 DN Page 17 EPS 100 Manual Integral Solutions Int l August 22 2013 6 Human Body Model HBM 6 1 Monitoring Waveform Capturing the waveform of HBM pulse requires the same setup as on Machine Model To monitor current going through the head install a CT 1 probe on the wire going from J4 Pin2 on the cartridge style waveform module to the FIC board For the box style modules mount CT 1 on the wire going from pin2 of HEAD connector on waveform module Figure 6 1 Monitoring HBM Pulse HBM MM ESD catridge do support heater testing the aux
13. ee NP Be q amp p a ESD Hardware Option Manual A Integral Solutions Int l EPS 100 August 22 2013 Copyright 2003 2013 Integral Solutions Int l All rights reserved Integral Solutions Int l 3000 Olcott St Santa Clara CA 95054 Phone 408 653 0300 Web http www us isi com Fax 408 653 0309 E mail 1s1 us 1si com While every effort has been made to verify the accuracy of the information contained in this publication this publication may contain technical and or typographical errors Please contact Integral Solutions Int l to report any errors in this publication Contents 1 gt 41 4 2 4 3 4 5 5 1 5 2 5 3 5 4 5 5 I gt 6 1 6 2 6 4 90 8 1 8 2 8 3 8 5 2 HARDWARE DESCRIPTION INSTALLATION MAINTENANCE CHARGE DEVICE MODEL CDM MECHANICAL ALIGNMENT MONITORING WAVEFORM ESD STANDARD CALIBRATION CDM OPERATION MACHINE MODEL MM MECHANICAL ALIGNMENT MONITORING WAVEFORM ESD STANDARD CALIBRATION MM OPERATION HUMAN BODY MODEL HBM MONITORING WAVEFORM ESD STANDARD CALIBRATION HBM OPERATION ESD SWEEP TEST BAR ESD STRESS OPTION BAR ESD OPTION INSTALLATION MONITORING THE WAVEFORM ON BAR HBM MM CHANGING THE WAVEFORM MODULE SOFTWARE CONTROL DIAGRAM ESD PROBE CARD PIN OUT HIGH FIELD ESD STRESS OPTION CONTACT INFORMATION TABLE OF FIGURES m OO N N 13 14 15 16 17 18 19 2
14. following block diagram is provided for better understanding of the operation of the waveform module It is created to show the human body model ESD standard The actual waveform module circuit may be slightly different y i 200K ohm EPS 100 Figure 6 6 HBM Block Diagram To fire pulse 1 S2 Right SI Right S3 Up 2 wait 100mS 3 S2 Left To test device 1 S3 DN Page 21 EPS 100 Manual Integral Solutions Int l August 22 2013 7 ESD Sweep Test ESD option allows you to fire a sequence of pulses and monitor head performance during the sweep To enable it run Quasi97 go to Add Ins Modules and enable ESDApp application ESDApp is a test that will use your ESD option to fire pulses into the head and will run transfer curve or any other test to see how the head had degraded It is not recommended to expose any waveform module to magnetic fields higher than 250Oe When running QST tests with waveform module close to the magnet make sure that magnetic field from the QST magnet does not cause field near CDM waveform module to exceed 2000e D System Tests EAS mw pom Module EPS DCDM e Farque N A 718 02 1 1 14 18 02 1 Coarse Sweep From 2 Te Do Fine Sweep From V 7 Fine Ine o4 ESD Profile Curve Bias 4 0 Part ID Head Farqwe Pulses Per Voltage f Delay Before Pulse 5 0 Pulse Polarity POS x Delay After Pulse 5 fo MFRAmp ho MFR Re
15. from HBM MM to CDM or vice versa you will have to change the screws in Stepl and Step2 with the ones supplied with the module you are attempting to install Page 27 EPS 100 Manual Integral Solutions Int l August 22 2013 8 4 Software Control Diagram For Bar ESD Stress option you need to select Bar Level configuration in Quasi97 setup selection screen instead of QST2002 You also need to enable ESDApp Application module in the Quasi97 selected modules menu When running the ESD Sweep test will tell barcont to move to stress location then tell EPS 100 to apply ESD voltage then tell barcont to move to test location and run tests in Quasi97 Run ESD Sweep Test Quasi97 gt Load Bar on Test ESDApp Module Load Bar on Stress Load Bar on Test Fire ESD Pulse Load Bar on Stress PN Barcont EPS 100 Figure 8 11 Bar ESD Software Control Diagram The ESD Sweep Test can be enabled in production For BlazerX5 ESD this allows to run a full bar in engineering mode and multiple trays of bars in operator mode without operator input Be careful not to run ESD sweep test in production if you want to enable logging plots because Excel file is going to get very big very quickly 8 5 ESD Probe Card Pin out The ESD probe card has only two pins which are connected to R and R outputs of the waveform module R is the pin that is closer to the magnet and R pin is closer to the operator For HBM and MM the pulse is
16. he choke between QST Universal Interface and 2xHGA tooling is to reduce AC noise on 2xHGA ESD option It should be used if ESD Option is installed and does not have any effect on standard non ESD cartridgees 2xHGA Gen2 Users For CDM ESD test you should have a special cartridge that does not have DC cables and connectors installed The CDM cable splits into 2 AC cables write and read that should be connected to the back of the cartridge For MM HBM ESD test you should reuse the non ESD cartridge You have to disconnect the 4 AC cables then install a shim and put on the ESD waveform module Then connect the waveform module to the cartridge via Y type AC cable Then connect the waveform module to the Connector board via 1 Y Type AC cable The DC cables should remain connected 34 Maintenance Approximated lifetime of the relay on DCDM modules is 100 000 cycles HBM and MM modules are less sensitive to a small change of capacitance in the relay and will work longer without changing it Performance of your waveform module should be monitored periodically and if necessary the module should be sent back to ISI for relay replacement or calibration Follow calibration procedures to ensure performance of your ESD Stress system There is a 100mA SLO BLO fuse on the AC input Page 5 EPS 100 Manual Integral Solutions Int l August 22 2013 4 Charge Device Model CDM 4 1 Mechanical Alignment According to CDM standard the head s suspen
17. he comuter 2 Install the shelf for EPS 100 on the right side of the tester leaving the 50pin ribbon cable between the shelf then the right panel of the Blazer i Hy m Jj h g m E P pr JA E BTUS 4 PELLIT OM E f L yp o ER x jl 2 D T LI 1 eM 4 E p m i i L 1 q leave the cable inside install the Lhracets for the EFS 100 shelf install the shelf and secure itwith Shaws Figure 8 2 EPS 100 BlazerX5 Installation 3 Route the ribbon cable into the lower frame and connect to the PCI 6503 card inside the computer Connect the AC power to the EPS 100 Page 23 EPS 100 Manual Integral Solutions Int l August 22 2013 Figure 8 3 EPS 100 BlazerX5 Installation 2 4 Mount the EPS 100 on the shelf and connect all cables to it Figure 8 4 EPS 100 BlazerX5 Installation 3 5 Remove one from bar magnet assembly and install the waveform module holder E EnO MH i Li Install the Stress Option holder and tighten the 3 screws holding it Page 24 EPS 100 Manual Integral Solutions Int l August 22 2013 8 2 Monitoring the waveform on Bar HBM MM Unlike the standard HBM MM cartridges the BlazerX5 HBM MM don t have connectors for the flex guide cables Instead the have pogo pins which connect to the probe card PCB BlazerX5 HBM MM waveform modules have a special slot in the enclosure spec
18. ifically for the CT 6 installation Figure 8 5 BlazerX5 HBM MM Connecting CT 6 l To install the CT 6 you have to remove the BlazerX5 waveform module assembly from the base just as you would when changing the stress probe card see BlazerX5 User Manual This is done by removing two screws from the top plate of the assembly 2 Remove the waveform module from the assembly Remove serews holding waveform module to the plate Figure 8 6 BlazerX5 HBM MM Connecting CT 6 2 3 Remove 4 on the bottom of the pomalux enclosure to take it apart Take the waveform module enclosure apart Figure 8 7 BlazerX5 HBM MM Connecting CT 6 3 Page 25 EPS 100 Manual Integral Solutions Int l August 22 2013 4 Install the CT 6 onto the outside pogo pin such that the green dot on the CT 6 is facing the PCB Install the CT B an the paga pin pin atthe connector such that the green dot indicating polarity on the 01 6 is facing the board Figure 8 8 BlazerX5 HBM MM Connecting CT 6 4 3 Put the assembly back together 6 To avoid damage to the vacuum gripper or to the pogo pin secure the CT 6 with the tie wrap after the waveform module is installed on the tester To monitor the waveform on a real head you need to load a bar in Barcont then select Stress location move to a slider on the bar and click Probe You can open the EPS 100 main menu from the ESD Sweep Test option and then fire sing
19. l 5 3 ESD Standard Integral Solutions Int l August 22 2013 Machine Model charges a 200pF capacitor and fires the accumulated charge into the head The standard shown here applies to pulses produced by ISI MM waveform modules and should treated as such CURRENT IN AMPERES TIME IN NANOSECONDS Voltage Level Positive for Short Ips Current at 100ns for 500 2 Maximum Positive for 500 2 Maximum Ringing Current Ip CURRENT IN AMPERES Resonance Frequency for Short FR 1 ty qj e trm jme mr eae 20 40 60 60 100 120 140 160 180 200 TIME IN NANOSECONDS V 10 150 200 7 25 20 mA Ips 30 Figure 5 4 Short and 500Q MM Standard 3 Figure Taken from EIA JEDEC Standard Test Method A115 A Electrostatic Discharge Sensitivity Testing Machine Model HBM Revision EIA JESD22 A115 Page 15 EPS 100 Manual Integral Solutions Int l August 22 2013 5 4 Calibration To verify calibration of the machine module mount a CT 1 probe to monitor the ESD pulse Connect a 0Q resistor instead of the head and fire a 10V pulse Verify the peak amplitude and ringing frequency against that in the MM spec Connect a 500 resistor and fire a 10V pulse Check that amplitude and current at 100nS conforms to Machine Module specification Figure 5 5 New Style MM HBM Calibration The picture above shows the cartridge style machine module prepar
20. le pulses using EPS 100 To monitor the waveform on a resistor probe card you need to install the dummy resistor probe card first and then mount the waveform assembly onto the Blazer After that you can fire pulses using EPS 100 application The waveform should comply with HBM MM standards specified in this manual Page 26 Integral Solutions Int l EPS 100 Manual August 22 2013 8 3 Changing the Waveform Module To change the waveform module first remove the waveform module assembly from stress probe card base and then unscrew the two screws holding the waveform module to the assembly as shown on the picture below 5 ae P Figure 8 9 Changing the Waveform Module BlazerX5 Loosen all 4 screws holding the base with the probe card as you would when realigning the probe card You need to do that because different modules will allow access to different probe card alignment screws For example HBM MM allows access to left back right back and right front screw whereas CDM allows access to righ back left front and right front screw You will need to tighten any two screws to hold the probe card base firmly in place i v4 4 WE CR to Change the Probe w Lard N Ell Figure 8 10 CDM Waveform Module BlazerX5 Install the waveform module in the opposite order first install the module onto the assembly and then install assembly onto the stress probe card base Note that when changing the module
21. nd flex guide for Up Down Heads from the cartridge Pull out a pin from plastic base where you put in the flex of HGA the HGA clamp along with the spring should come out If flex guide is held by two screws then remove them and pull out the flex guide If flex guide is glued then remove the locating pins from it You should have a cartridge with 2 or more uncovered pogo pins Figure 4 6 CDM Cartridge Calibration Put the calibration board on top of the pogo pins The calibration capacitor board should reside on two reader pogo pins and contact the CDM chassis on the sides So when installing it make sure that the two MR pogo pins do contact the metal portion of the disk capacitor and writer pins do not There are two methods of locating the calibration capacitor If there is a pinhole before pogo pin 1 insert the pin that you removed earlier in that hole through the calibration board use the pin to guide the calibration board to the proper location If a guide hole or a pin is not available then use an ohmmeter to locate the calibration board To do that restart EPS 100 software connect the ohmmeter to pins 1 and 2 of J2 connector and continuously measure resistance while moving the calibration capacitor until you get less than 1 Ohm After that check resistance between pins 2 and 3 to make sure that R and W are not connected Put 2 screws with washers on two sides of the calibration board to hold it in place and to connect the topside of
22. s 2 1 Fail On 1000 f o Umm Transfe ESDCont Transfe ivi 100 ESDCont Transfe Pk Pk Asym 2 Ivi O 80 ESDCont Transfe Barkh Jump p V TI L 20 m 7a EQN Gatin Resistance Ohms Pk Pk Amp uv Results 50 50 Result avg Bias Current m 14 2 14 2 114 2 1100 0 Completed Complet D nh o Pk Pk Asym 96 2 5 Clear Results Plat 5 0 10 0 12 5 EPS DCDM ESD V Reset Plot Scales 15 0 Show All Curves 17 5 20 0 ZX ESD Transfer Curve P Operator ID T Es Adisew _Feinove Seu Cycles fi fun AllSetups Multiple Curves Averages i v Symmetrical v Stress Each Cycle Sweep From To no Inc De n Measure At Oe 50 Slope Field Range Oe fio Max Slope Field Range Oe fi 0 3 779 Asra ESDCont T Trans 4718 02 325 23 PariD Ta mm a ESDCont Transfer Curve Bias 4 0 Part ID PartID Head Farqwre Stress Options Parameters IT ee Amplitude uv 150 Clear Results Plot Magnetic Field Oe Reset Plot Scales Setup1 Bias Current m Setup1 Resistance Ohms 4 0 81 3 4 0 81 9 1 11 53 11 53 1 uv 32 29 32 29 Setup1 Pk Pk Amp uv 43 824 43 824 47 37 47 37 13 44 13 44
23. sion must be grounded In most cases suspension holder serves that purpose while in other the suspension is pressed against CDM chassis by flex clamp Unlike HBM or MM modules CDM cartridge requires the flex to be directly connected to the board That is why mechanical alignment of CDM cartridge may be counterintuitive The pads on the flex must be facing the board so for some cases the head will be mounted ABS side up The head will still be kept horizontal 90 to the transverse field Suspension Holder Flex Guide Flex Clamp Figure 4 1 CDM Mechanical Alignment Up Down head reconfiguration involves changing the flex guide and realigning the suspension holder Align the suspension holder so that the head s flex is on the centerline of the CDM tooling and the lies on the 2 4 pogo pins Usually ISI ships two flex guides for Up Down heads user needs to remove the two screws holding the flex guide and change it Head s flex should always lie on the 2 4 pogo pins on the centerline of CDM tooling If screws from the flex guide are missing the user should remove the pins and put them into different pinholes to match head type CDM cartridge can support heater but a special cable should be used that connects to pins 3 and 4 of the Write port on the 2xCartridge Use Static Test Aux Point Test to measure resistance of the heater in ESD and non ESD configuration Note for 4 Pole magnet applications On DCDM th
24. tance Delta 1 5 Test 1 Iex Add jJ Insert ae Quasi 97 ESDApp Application ad M Y Transverse FMRApp Application T ESD option is ready You can fire single pulses from File2 HardwareConfig gt EPS100Lib User menu or run an ESD Sweep test If you are installing the EPS 100 option on the new PC you need to install the NIDAQmx 9 7 software The NIDaqmx Core link is available on www us isi com this is the bar minimum required to run There is also an option to install full version of NIDAQmx This can be downloaded from National Instruments website If installing full NIDAQ version then following must be done 1 Select the following options S NI DAQmx 9 7 Features Select the features to install a gh NE DABms 3 7 0 MI Measurement amp Automation Explorer APIs For MI Configuration Support copying configuration data to or from a system or to Measurement amp Automation Explorer 5 4 generate reports about those systems Requires the Microsoft MET Framework 3 5 and is typically used x bere anguaages u with Visual Studia 2008 NET Framework 2 0 m NET Framework 3 jh Languages 5 X e MI Network Browser 5 4 0 X N Web Interface Framework 2012 r3 290 up lt y This feature will be installed on the local hard drive lt i Directory for Framework 3 5 Languages Support Browse 2
25. trical properties capacitance of the head The CT 6 probe comes standard with CDM cartridge and should be ready for monitoring the waveform Simply connect the CT 6 current probe from CDM waveform module to the oscilloscope If CT 6 is not installed we recommend sending it to ISI If that is not possible here is the procedure on how to do it Separate the waveform module from the 2x cartridge by removing 4 screws that are not covered in black Fix the waveform module as shown on the picture right Push the CT 6 probe through the opening on the bottom up i towards the copper wire Unsolder the copper wire on the right end Insert wire through the CT 6 probe and re solder Mount DCDM waveform module back on the cartridge Figure 4 3 CDM CT 6 Page 7 EPS 100 Manual Integral Solutions Int l August 22 2013 4 3 ESD Standard The standard shown here applies to pulses produced by ISI DCDM waveform modules and should treated as such The values should be used for verification of the CDM waveform module device with 5pF and 12pF calibration capacitors Current mA Time ns Figure 4 4 CDM Standard 1 1 can be estimated as 11mA V CDM for 5pF capacitor and 13mA V CDM for 12pF at 10V CDM or higher The real peak current at lower voltages such as IV CDM is around 8mA V and 12mA V for 5pF and 12pF capacitors Use the following table to verify performance of your CDM module SpF Calibration C
26. waveform Module Vpeak is directly proportional to Ipeak and the formula can be used to calculate real HBM voltage applied Figure Taken from EJA JEDEC Standard Test Method A114 A Electrostatic Discharge Sensitivity Testing Human Body Model HBM Revision EIA JESD22 A1 14 Page 19 EPS 100 Manual Integral Solutions Int l August 22 2013 6 3 Calibration To verify calibration of the human body module mount a CT 1 probe to monitor the ESD pulse Connect a 0Q resistor instead of the head and fire a 7V and 50V pulse Verify the peak amplitude rise and decay times against the HBM spec Connect a 5000 resistor and fire a 7 and 50V pulses Verify the waveform characteristics with the spec Figure 6 4 Old Style MM HBM Calibration The screenshot above shows the box style HBM prepared for calibration See MM calibration for screenshot of cartridge style waveform module calibration Note that the same ESD waveform specification applies to both box and cartridge style HBM b Rug B3 MEASURE 12 25 48 i 1L 1213 FA ns vw 1H sweeps average low high maximumig 67 50 157 0 160 7 minimum 2 4 5my B T 3 B Freqtg 22 tn 10 00 div 58 ns 1 disabled H 20 my SOR 4 GS s 3 disabled p 2 OC 45 6mi SLOW TRIGGER 4 disabled NORMAL Figure 6 5 Real HBM Discharge on OOhm resistor Page 20 EPS 100 Manual Integral Solutions Int l August 22 2013 6 4 HBM Operation The
27. wever other magnet design for example 4 pole or 15K high field can go to higher fields without affecting the waveform module due to smaller field leakage in the perimeter For example QST 2002HF Tester and QST 2002 with Quad Pole HGA Magnet can go to higher fields Important The diodes on Gen2 2xHGA cartridges must be removed in order to work properly with Machine Model MM and Human Body Model HBM ESD modules So the MR Clamping During Write feature is not supported by the HBM MM Gen2 type cartridges User must remember the fact that the QST 2002 tester cannot recognize if the diodes are present or not so MR Clamping During Write even though available in software will not work The diode protection still exists on the 2xHGA GEN2 interface board using programmable clamping voltage but it is enabled in both write and read modes Important On Gen2 2xHGA type cartridges for HBM and MM the DC cable makes a slight impact on the waveform with higher resistance read heads While it is recommended to have it for higher accuracy measurement it has negative impact on the amplitude of the HBM waveform HBM peak on 500ohm reader is 5 higher with the DC ribbon cable because of additional capacitance In order to avoid this phenomena the DC ribbon cable between the cartridge and HGA connector board can be removed In this case the cartridge needs to be reworked as follows 1 On HGA connector board remove the R5 and R7 2 On the G2 2
28. x Universal Cartridge board install Oohm resistors on R5 R10 Page 3 EPS 100 Manual Integral Solutions Int l August 22 2013 2 Installation 1 Install the NI DAQ PCI 6503 in one of available PCI slots in the computer 2 Connect EPS 100 to the NI Daq card using a 50 pin ribbon cable J Connect the waveform module to the EPS 100 using 26 pin cable 4 Plug in EPS 100 power supply to a standard 115VAC outlet 5 Turn on the PC and run Quasi97 Go to File gt Hardware Config Add one line item select for module type EPS100Lib clsHOption in the instance column and ESD Option in the function column Quasi97 File Help i Hardware Options 14 Select Test Setup Order Module Instance Enable GUI GUI Functions Status Poll Channels 1 Quasi97 QST2001Plus Main J User Menu Diag Menu Active V 0 1 2 EPS100Lib clsHOption user Menu Diaa Menu ESD Option Active v 3 ISI2010Lib clsHOption User Menu Diag Menu FMR v 4 MagnetActuator cls HOption User Menu Diag Menu MagnetActuator v 6 Select a etu file In the Add Ins gt Selected modules enable ESDApp application V Quasi97 7 4 2 SETUP File View System Tools Calibrate Add Ins Select Help ESD System Cont Fn Add In Modules ESD System Control 4 Trans verse n Quasi Static Tests 1 i AN Static Tests Tm Resis

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