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
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