Summary of Contents for Unitek MICROPULL IV MP4/115
- Page 1 USER’S MANUAL NO. 990-180 REVISION B: July 2000 OPERATION AND MAINTENANCE MANUAL FOR THE ® MICROPULL WIRE BOND PULL TESTER Model Stock Number MP4/115 6-099-04 MP4/230 6-099-04-01 MP4(CE)/115 6-099-05 MP4(CE)/230 6-099-05-01...
- Page 2 Copyright © 2000, Unitek Miyachi Corporation The engineering designs, drawings and data contained herein are the proprietary work of UNITEK MIYACHI CORPORATION and may not be reproduced, copied, exhibited or otherwise used without the written authorization of UNITEK MIYACHI CORPORATION.
- Page 3 We have made every effort to ensure that the information in this manual is accurate and adequate. Should questions arise, or if you have suggestions for improvement of this manual, please contact us at the above location/numbers. Unitek Miyachi Corporation is not responsible for any loss due to improper use of this product. ® MICROPULL...
- Page 4 SAFETY NOTES This instruction manual describes how to operate, maintain and service the Micropull IV, and provides instructions relating to its SAFE use. Procedures described in this manual MUST be performed, as detailed, by QUALIFIED and TRAINED personnel. For SAFETY, and to effectively take advantage of the full capabilities of the tester, please read these instruction manuals before attempting to use the workstation.
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Page 5: Table Of Contents
CONTENTS CHAPTER 1: Description......................Section I. Features........................Section II. System Components....................Description.......................... Electronic Control Unit....................Beam Drive Module...................... Beam Specifications......................Hook Specifications ......................Model MPIT Insertion Tool..................Software ........................RS-232C Serial Interface ....................Calibration Weights ...................... Standard Device Holder....................Optics ..........................1-10 Controls and Indicators....................... - Page 6 Zero Adjust ......................... Section III. Operation Procedures.................... Example of Non-Destruct Mode Testing................Example of Destructive Mode Testing ................Section IV. Printer Operation ....................Set-up and Interpreting Readouts ..................Non-Destruct Testing Program..................3-11 Destruct Testing Program ..................... 3-14 Printed Reports ......................3-19 Disk Files and LOTUS 1-2-3....................
- Page 7 ILLUSTRATIONS Figure Title Page Micropull IV, Major Components ................Nondestructive Pull Testing Reshaping the Wire Bonds..........B10 and B100 Beam ..................... B100R Beam and Insertion Tool .................. 1000g Beam Hook and Calibration System..............MP4, Controls and Indicators ..................1-10 Rear View of MP4 ......................1-13 Optic Mounting Assembly....................
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Page 9: Chapter 1: Description
CHAPTER 1 DESCRIPTION Section I: Features The Micropull IV (herein called the MP4) is a semiautomatic machine designed to perform wire bond pull tests in the 0.5 to 1000 gram-force range, using three interchangeable beams, at rates of up to one test per second. -
Page 10: Section Ii. System Components
CHAPTER 1: SYSTEM DESCRIPTION Section II: System Components Description The MP4 shown in figure 1-1, includes the Electronic Control Unit, the Beam Drive Module, Data Logging software, the RS-232C interface and cable, a base plate, Optic Mounting Assembly, a device holder for flat substrates, a set of calibration weights, spare fuses and this instruction manual. -
Page 11: Electronic Control Unit
CHAPTER 1: SYSTEM DESCRIPTION with respect to the wire bond is less than 5% for misalignments of up to 5 degrees in either plane. The Zero Drift is r0.3% of full scale during the first 15 minutes and negligible thereafter. Electronic Control Unit. -
Page 12: Beam Drive Module
CHAPTER 1: SYSTEM DESCRIPTION significant bit in the 8, 4, 2, 1 BCD code format. A, B, C, and D are the data digits; H is the MP4 Failure Code. When the footswitch is actuated, a +14 volt, 10 millisecond Print - Data Stable pulse appears on pin 29. The MP4 can be inhibited from making another test by placing a +15 volt BUSY signal on pin 26. -
Page 13: Nondestructive Pull Testing Reshaping The Wire Bonds
CHAPTER 1: SYSTEM DESCRIPTION hook is allowed to pivot through a limited angular range in the front-to-back plane and is not allowed to pivot from side-to-side. The MIL-STD also requires that the Non-Destruct pull should start with the hook positioned midway between the two bonds. Assuming single level bonds, the result is that the wire bond is reformed into an isosceles triangle wherein the pull force on each bond is equal, as shown in figure 1-2. -
Page 14: Beam Specifications
CHAPTER 1: SYSTEM DESCRIPTION Knob assembly Hook insertion tool Hook access hole Wire legs Beam cover Beam support Bracket Beam access cover Beam housing Hair pin clip Handles Hook assembly Beam Hook assembly "T" handle "T' handle installation tool Figure 1-3. B10 and B100 Beam Figure 1-4. -
Page 15: Model Mpit Insertion Tool
CHAPTER 1: SYSTEM DESCRIPTION Table 1-4. Hook Specifications NOTE: Many specifications require that the hook diameter be approximately 2.5 times that of the wire being tested. Model Weight Diameter Maximum Dimension A* Dimension B* Used On (in.) Pull (g-f) (in.) (in.) 0.003 0.007... -
Page 16: Rs-232C Serial Interface
CHAPTER 1: SYSTEM DESCRIPTION The MP4 Data Logging Software is intended to provide a general purpose, “plain vanilla” method of data collection. Source code is provided which should allow the user to make any necessary modifications. The program is supplied in three formats, on a 5-1/4 inch, unprotected, PC/MS-DOS compatible diskette. -
Page 17: Calibration Weights
CHAPTER 1: SYSTEM DESCRIPTION The signal and pin numbers for J1, the RS-232C Interface connector, are shown in table 1-6. Table 1-6. RS-232 Interface Connector, J1, Signals Description Received data Transmitted data Signal ground The MP4 can understand the eight-bit binary-coded messages shown in table 1-7. Table 1-7. -
Page 18: Controls And Indicators
CHAPTER 1: SYSTEM DESCRIPTION Controls and Indicators The operator controls and indicators are shown in figures 1-6 (front view) and 1-7 (rear view), and described below. Figure 1-6. MP4, Controls and Indicators Electronic Control Unit POWER Switch (figure 1-6) – The POWER switch controls both sides of the incoming power line. Control Lever –... - Page 19 CHAPTER 1: SYSTEM DESCRIPTION Negative Tare Indicator – This is a minus sign to the left of the PEAK FORCE display. This error condition will be displayed for negative inputs which exceed 0.1% of full scale. Computer Busy Indicator - A colon lights to the left of the PEAK FORCE display if the MP4 is inhibited from further operation as a result of receiving the appropriate message, via the RS-232C interface, from an external source.
- Page 20 CHAPTER 1: SYSTEM DESCRIPTION End-Of-Test Conditions – When the HOOK RETURN switch is set to AUTO, the hook automatically slews to the Downstop in the event any of the following end-of-test conditions occur: A bond failure. The PRESET FORCE is reached and the HOLD TIME expires. The Beam hit the Upstop.4 The MP4 MODE switch is in the NON-DESTRUCT position and the force reaches 100% of full scale.
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Page 21: Rear View Of Mp4
CHAPTER 1: SYSTEM DESCRIPTION HOLD TIME AUTO ZERO UNITS PRINTER FOOTSWITCH PULL RATE Figure 1-7. Rear View of MP4 ® MICROPULL IV WIRE BOND PULL TESTER 990-180 1-13... -
Page 22: Beam Drive Module
CHAPTER 1: SYSTEM DESCRIPTION Beam Drive Module (figures 1-1 and 3-4) Zero Adjustment - The output of the strain gauge preamplifier can be re-zeroed by slowly turning the four-turn screwdriver adjustable potentiometer, accessible through the top of the beam module cover, until the minus sign on the PEAK FORCE display just goes out. -
Page 23: Chapter 2: Getting Started
CHAPTER 2 GETTING STARTED Section I: Planning for Installation Space Requirements The dimensions of the MP4 are: Width: 11.75 in. (29.85 cm) Depth: 26 in. (66 cm) Height: 7.60 in. (19.3 cm) Weight: 40 lb. (18 kg) Power Requirements 115 V ±13%, 60/50 Hz or 230 V ±13%, 60/50 Hz Power: 20 watts Fuses: 115 V operation: both Beam Drive Module and Control Unit use a 0.5 A (slow blow) fuse. -
Page 24: Mounting Optic Mounting Assembly
CHAPTER 2: GETTING STARTED Mounting Optic Mounting Assembly WARNING: Disconnect power to the MP4 prior to installation of the optic mounting assembly. NOTE: Installation of the optic mounting assembly will require gaining access to the bottom of the base plate. For easier installation of the mounting post, it is recommended that the instrument be oriented on the workbench so that base plate-to-post holes are exposed over the edge... -
Page 25: Beam Module Installation
CHAPTER 2: GETTING STARTED Beam Module Installation NOTE: Do not install the hook at this time 1 With the POWER switch set to OFF, install the beam module to insure that both connectors are connected. 2 Remove the thumbscrew on the left side of the beam. -
Page 26: Section Iii. Software Installation
CHAPTER 2: GETTING STARTED Section III. Software Installation NOTE: These instructions assume that the reader has a reasonable understanding of PC/MS-DOS and Lotus 1-2-3. 1 The programs contained on the Distribution Diskette can be copied to a sub-directory on the hard drive named "\MP4"... - Page 27 CHAPTER 2: GETTING STARTED ECHO OFF CLS PATH \DOS;\BASIC;\MP4;\LOTUS CD\MP4 BASICA MP4 -or- GWBASIC MP4 For those users who elect to use the compiled version, MP4.EXE, a batch file, MP4EXE.BAT, has been created which contains the following instructions: ECHO OFF PATH \DOS;\BASIC;\MP4;\LOTUS CD\MP4 The PATH Instruction assumes that DOS, BASICA (GWBASIC) , and LOTUS are located in...
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Page 29: Chapter 3: Operating Instructions
CHAPTER 3 OPERATING INSTRUCTIONS Section I: Operating Precautions General Operator Safety WARNING Always wear safety goggles any time you are operating the MP4. Section II: Preparing for Operation Initial Operating Procedure The following procedure is designed to familiarize you with the operation and features of the MP4. After once performing these instructions in detail, you should be able to devise a simple procedure specifically tailored to your requirements. -
Page 30: Installing The Rotatable Hook - B100R Beam
CHAPTER 3: OPERATING INSTRUCTIONS 3 Insert the hook assembly into the beam assembly and align "T" pin with the slot in the beam. Gently apply pressure to both the hook and the insertion tool in a manner which allows the "T" to pass through the slot in the beam and penetrate into the slot in the insertion tool. -
Page 31: Setup Controls
CHAPTER 3: OPERATING INSTRUCTIONS "T" handle installation tool 6 Rotate the knob while installing so 270-019 that the legs slip through the slot in Knob the bracket and fall into alignment "T" handle 4-30059-01 with the “T” handle. When the 4-29967-01 knob is fully seated, insert retaining clip into the shaft groove to capture... -
Page 32: Beam Travel Adjust
CHAPTER 3: OPERATING INSTRUCTIONS 2 Use the screwdriver end of the hook insertion tool and slowly turn the zero adjust potentiometer on the Beam Module, figure 3-4, clockwise until the minus sign in front of the PEAK FORCE reading lights. Then, turn the zero adjust counterclockwise until the minus sign just goes out. -
Page 33: Downstop Adjust
CHAPTER 3: OPERATING INSTRUCTIONS Turn the BEAM TRAVEL control to MAX. The beam should now travel 3/4-inch when the Control Lever is raised. 6 With the Control Lever in its lowest position the DOWNSTOP control will now adjust the hook position approximately 1/4 inch. -
Page 34: Zero Adjust
CHAPTER 3: OPERATING INSTRUCTIONS 6 When the HOOK RETURN switch is set to AUTO, the hook automatically slews to the Downstop in the event that any of the End Of Test conditions is met. Zero Adjust 1 On the rear of the Electronic Control Unit, set the ZERO switch to MAN (out). 2 Slowly turn the zero adjust potentiometer (R6) (figure 3-4) on the beam clockwise using the insertion tool screwdriver until the PEAK FORCE indicator minus sign just lights. - Page 35 CHAPTER 3: OPERATING INSTRUCTIONS signaling that the hook should be lowered. However, the hook will remain under the wire applying 2 gf until the Control Lever is lowered. 5 Lower the hook and press the footswitch to signal the start of a new test. 6 Repeat this test with the MODE switch set to NON-DESTRUCT, the HOOK RETURN switch set to AUTO, and the ZERO switch (on the rear panel) pushed in (AUTO).
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Page 36: Example Of Destructive Mode Testing
CHAPTER 3: OPERATING INSTRUCTIONS 15 Increase the UPSTOP control until the MP4 functions properly. Verify that the MODE switch is set to NON-DESTRUCT and the HOOK RETURN switch to MANUAL. Hook a wire bond. Then decrease the UPSTOP control until the Test Status Indicator just starts to blink and a force equal to the PRESET FORCE is displayed on the PEAK FORCE indicator. -
Page 37: Section Iv. Printer Operation
CHAPTER 3: OPERATING INSTRUCTIONS Section IV. Printer Operation Set-up and Interpreting Readouts NOTES: x Throughout this manual the convention < > means “the computer key labeled.” For example, <4> means the key labeled 4. <Enter> means the key labeled Enter (or Return). x For the following operations to work, as shown, the following conditions must exist: The computer printer must be on line, The computer RS-232 port must be connected to the MP4 RS-232 port (J1), and... -
Page 38: Test Limits For Non-Destruct Mode
CHAPTER 3: OPERATING INSTRUCTIONS 3 The "Date" entry displays the DOS System date. If the date is incorrect, return to DOS and change it using the DOS Command DATE. 4 Press <F9> to select communications port #1 or #2. The software will open the communications port even if the MP4 is not connected to the computer because the status of the "Request To Send"... -
Page 39: Non-Destruct Testing Program
CHAPTER 3: OPERATING INSTRUCTIONS entry. For example, on a 100 gf beam, the ninth entry would contain all of the bonds that broke between 4.5 (9 x 0.005 x 100gf) and 4.9 gf. CHANGE HEADER INFORMATION FIELD CONTENTS Operator's Name Part Number Lot Number Serial Number... - Page 40 CHAPTER 3: OPERATING INSTRUCTIONS NON-DESTRUCTIVE PULL TEST Date: 12-06-1987 14:23 Operator: M.P. PHFOUR Part No: A1234567890 Lot No: 4-234-789 Beam Size: 100 gf Pull Test Limit: 2.5 - 2.7 gf No. Bonds / Device: Serial No: 1005 The following will be displayed on the computer screen: NON-DESTRUCT TESTING TEST PULL(gf)
- Page 41 CHAPTER 3: OPERATING INSTRUCTIONS 3 The messages that can be received from the MP4 in the Non-Destruct Mode are: VALID TEST NO TEST HIT UPSTOP WIRE BROKE / HOLD TIME FALSE ERROR An "OUT OF LIMITS" message is generated by the software whenever the Pull Value is less than the contents of the Minimum or greater than the Maximum Non-Destruct Limit fields.
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Page 42: Destruct Testing Program
CHAPTER 3: OPERATING INSTRUCTIONS 7 If the "Increment Serial Number" field contains an "N", the request for a new serial number will be made as illustrated below. The serial number is keyed in; <Enter> is pressed to terminate the entry. NON-DESTRUCT TESTING TEST PULL(gf) - Page 43 CHAPTER 3: OPERATING INSTRUCTIONS In that case, the software permits the user to change his earlier decision not to save data to "PULLS.TXT" by asking, "Save Histogram Data to PULLS.TXT (Y/N)?" A response of <Y> will cause the data to be saved to "PULLS.TXT." Any data that was stored in "PULLS.TXT" will then be over-written.
- Page 44 CHAPTER 3: OPERATING INSTRUCTIONS DEFINITION That was the last test. Print results and gets ready for next device. End testing, return to Change Header screen. End testing, return to Configure Hardware screen. End testing, plot histogram, save / erase pull data. The last test was invalid.
- Page 45 CHAPTER 3: OPERATING INSTRUCTIONS 8 The following Information would be added to the header shown in step 3, assuming the "Accept Failure Location Codes" field contains a "Y". BOND PULL (gf) LOCATION ERROR 12.3 gf .5 gf NO TEST/OPERATOR 12.2 gf 12.0 gf 12.2 gf 13.2 gf...
- Page 46 CHAPTER 3: OPERATING INSTRUCTIONS 9 By pressing <F5>, the operator may graph a histogram of the data resulting from the 16 tests in this example. It will be similar to that shown below: HISTOGRAM 12-08-1987 TOTAL 16 Bonds NUMBER OF BONDS - Each X = 1 Bonds PULL 10.5 11.0...
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Page 47: Printed Reports
CHAPTER 3: OPERATING INSTRUCTIONS 11 If the "Echo Data to Disk File" field contains a "Y" all of the information received from the MP4 will be reformatted into a Lotus 1-2-3 ".PRN" file. The Disk File named on the Change Header Screen will be over-written whenever the Echo feature is selected. - Page 48 CHAPTER 3: OPERATING INSTRUCTIONS 2 The Reports generated by this software contain much more information than that shown above. The Non-Destruct and Destruct Test Reports are illustrated below: NON-DESTRUCTIVE PULL TEST Date: 12-06-1987 14:23 Operator: M.P. PHFOUR Part No: A1234567890 Lot No: 4-234-789 Beam Size:...
- Page 49 CHAPTER 3: OPERATING INSTRUCTIONS 2.6 gf Serial Number: No. of Tests: No. of Good Tests: No. of Bad Tests: Beam Size: 100 gf Pull Test Limit: 2.5 - 2.7 gf No. Bonds / Device: Serial No: BOND # PULL (gf) ERROR NOT TESTED Explanation of Non-Destruct Test Report.
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Page 50: Disk Files And Lotus 1-2-3
CHAPTER 3: OPERATING INSTRUCTIONS 12.3 gf 12.2 gf 12.0 gf 12.2 gf 13.2 gf 13.3 gf 13.5 gf 14.2 gf 13.0 gf 12.6 gf 12.5 gf 12.8 gf 13.1 gf 11.7 gf 11.5 gf 11.7 gf Serial Number: 1015 No. of Tests: Aver. -
Page 51: Suggestions
CHAPTER 3: OPERATING INSTRUCTIONS 3 Load NONDEST.WKI AND DESTRUCT.WK1 into LOTUS 1-2-3 to see the format of these files. Suggestions 1 Use the <Fl0> to terminate the MP4 program. This ensures that the MP4 is not inadvertently inhibited by the PC. Switch the MP4 to the PRINTER MODE by releasing the switch on the rear panel. 2 If there is a problem receiving data from the MP4, use the PC-DOS utility program named COMM.BAS. -
Page 52: Reference Listing For Mp4.Bas Release 1.0
CHAPTER 3: OPERATING INSTRUCTIONS 8.399999 10.2 Reference Listing for MP4.BAS Release 1.0 Symbol Reference Line - Symbol Reference Line - 1535, 7620 1590 1505 1805, 1860, 5255 1595 1230, 2235 1605 1755 5305, 5310. 5325 1610 1760 125, 1615 1760 125, 1620 1635,... - Page 53 CHAPTER 3: OPERATING INSTRUCTIONS Symbol Reference Line - Symbol Reference Line - 2570 2560 7265 7255 2575 2415, 2430, 2565, 2570 7290 7255, 7260, 7535 5005 1015 7305 7105 5120 5125 7405 7305 5205 5110 7415 7305 5210 5260 7425 7305 5230 5105,...
- Page 54 CHAPTER 3: OPERATING INSTRUCTIONS Symbol Reference Line Temporary Variable 2415. 2495. 7525. 7535, 7610,10030. Temporary Variable 125, 130, 230, 240, 1510, 1535, 1910, 1915, 2560, 2570, 5120, 5125,10025 Temporary Variable 115, 120, 125, 135, 140, 155, 220, 225, 241, 245, 1530, 1535,10025 All valid alphabetical characters 5015.
- Page 55 CHAPTER 3: OPERATING INSTRUCTIONS Symbol Reference Line FIRST% First Cell Number in PULLS.TXT which contains data 2505, 2515, 2540,10025 HDR$( Various text used in Headers 5255. 5260. 5280. 5305. 5310. 5325. 5705, 5710. 5715, 7010, 7015. 7255. 7260. 7265, 7290. 7305. 7310. 7415. 7425, 7525, 7530, 7535. 7540, 7605.
- Page 56 CHAPTER 3: OPERATING INSTRUCTIONS Symbol Reference Line 10, 1205, 2115, 2205,10051,10052,10053,10054,10055,10056, 10058,10059,10060.10061,10062,10063,10064,10065,10066 Template for printing pull test values 2420, 2425, 2540, 2550, 2555, 7510, 7515. 7520, 7525. 7540 Pl$,P2$, Text used to print Histogram 2535, 2545,10040 PART$ Part Number 1110, 2110, 5280, 5720,10116 PCOL% Screen Column Number 115, 120, 140, 220, 235,245, 1805, 1860, 5015, 5240, 5245.
- Page 57 CHAPTER 3: OPERATING INSTRUCTIONS Symbol Reference Line 1215, 1220, 1350, 1410, 1420, 1805, 2215, 2220, 2360, 2370, 2415, 5280,10118 STDDEVI Standard Deviation gf, mN or N 2410, 2420, 2490, 2495, 2496, 2550,10030 SUMPULLSQ! Sum of the square of each pull value 2210, 2365, 2495, 2505, 2512,10030 TEST% Test Number...
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Page 67: Appendix A: Specifications
APPENDIX A SPECIFICATIONS Overall Unit Dimensions Width: 11.75 in. (29.85 cm) Depth: 26 in. (66 cm) Height: 7.60 in. (19.3 cm) Weight: 40 lb. (18 kg) Power Requirements 115 V ±13%, 60/50 Hz or 230 V ±13%, 60/50 Hz Power: 20 watts Fuses: 115 V operation: both Beam Drive Module and Control Unit use a 0.5 A (slow blow) fuse. - Page 68 APPENDIX A: SPECIFICATIONS Other Specifications Upstart Control 0.001”/minor division of vernier dial Full scale travel to 0.003” from downstop location Hold Time Adjust 0.1 to 3 seconds ±20%, repeatibility ±2% Pull Rate Control 5% to 57% of full-scale force/second ±20% (Reduces to 5% of full-scale force/second when wire bond reaches 95% of preset force.) Repeatability is ±2%...
- Page 69 CHAPTER 1: SYSTEM DESCRIPTION Table A-1. Beam Specification Shaft for all Maximum Full Scale Model Range (gf) Deflection (in.) 0.5 – 12.00 0.24 Largest BH30 1000 gram (Dimension total B100 1 – 120.0 0.24 shown in table 1-4) B1000 1000 40 –...
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Page 83: Appendix Cconversion For Different Input Voltage
APPENDIX C CONVERSION FOR DIFFERENT INPUT VOLTAGE MP4s are shipped from the factory pre-wired for either 115 VAC or 230 VAC, per your order. If at any time you need to change the voltage from one to the other, perform the following steps: WARNING: Unplug the unit from power source before changing transformer jumpers 1 Loosen the Allen type button head screws located on the both sides of the Electronic Control Unit . - Page 85 INDEX -C (continued)- Adjust Controls and Indicators ......1-10 Beam Travel........3-4 Beam Drive Module......1-14 DOWNSTOP ........3-5 Electronic Control Unit,.....1-10 Zero ............3-6 Controls, Setup.........3-3 Auto Zero ..........4-6 Conversion for Different Input Voltage...Appx C B10 Beam Hook Installation,....3-1 Data Output..........1-3 B100 Beam Hook Installation,....3-1 Connector J7 ........1-4 B100R Rotatable Hook Installation..3-2 Definition...
- Page 86 INDEX Features ............1-1 Repair..........4-7 Footswitch..........1-3 Troubleshooting .........4-7 Foreword ..........iii User ...........4-1 MIL-STD 833 ..........1-1, 1-5 Excerpts ..........Appx B Model Getting Started .........2-1 B10 Beam...........1-5 B100 Beam.........1-5 B1000 Beam........1-5 Histogram, Interpretation of ....3-18 B100R Rotatable Hook Beam....1-5 Holder, Device .........1-9 Mounting Optic Mounting Assembly ..2-2 Hook MP4.BAS Release 1.0, Installation...
- Page 87 INDEX -O (continued)- -R (continued)- Test Program Reference Destructive ........3-14 Information ........Appx B Non-Destructive......3-11 Listing for MP4.BAS Release 1.0 ..3-24 Operator Maintenance......4-1 Literature..........Appx B Auto Zero ...........4-6 Remote Operation ........1-3 Beam Module Calibration....4-4 Removal Beam Module ......2-3 Beam Travel Calibration....4-3 Repair ............4-7 Calibration .........4-1 Requirements...
- Page 88 INDEX -W (continued)- Unpacking ..........2-1 Weights for Calibration ......1-9 User Maintenance ........4-1 Warnings Zero Adjust ..........3-6 Definition of........iv Operator ..........3-1 Operator Maintenance......4-1 ® MICROPULL IV WIRE BOND PULL TESTER INDEX-4 990-180...