Gram gauge for wirebonder force calibration?

Joey Doll jcdoll at stanford.edu
Tue Oct 18 12:22:10 PDT 2011


Hi Labmembers -
Does anyone have a gram gauge that I could borrow to calibrate the force
applied by a wirebonder? I'm using a Westbond 7400E to wirebond thin (50nm)
metal bondpads, and the tool has a tendency to punch through the electrode
and short to another layer below it. I've tried adjusting the power/time and
switching from ultrasonic to thermocompression/thermosonic to no avail. If
you have a gauge or experience working with thin bondpads please let me
know. Thanks!

- joey
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://snf.stanford.edu/pipermail/labmembers/attachments/20111018/5f408707/attachment.html>


More information about the labmembers mailing list