Unitek 6-099-04, Operation And Maintenance Manual

Page: 68 / 88

APPENDIX A: SPECIFICATIONS
MICROPULL
®
IV WIRE BOND PULL TESTER
A-2 990-180
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%
Beam Down Travel 0.5”/second
Calibrated weights Uncertified weights are within 0.25% if the indicated weight.
Conversion of gram-force to newtons Accurate to ±2%
Absolute accuracy ±2% of reading or ±2% of beam scale, whichever is greater.
Wire bond failure between 1.5% and
120% of full-scale of the selected beam.
Minimum preset force is 1% of full-scale
or 0.5 gf, whichever is greater
Beam Travel Control ¼” to ¾”
Down Stop Control Maximum – ¾”