Refer to the attached file(HMC598_assembly).
After assembly, Voltage was applied according to the bias sequense.
4pcs were tested and all was over current issue.
we are looking for your advise.
Sorry to hear you're having problems with the HMC598. If bypassing is correct and you followed the bias sequencing (gate first, then drain, then adjust gate) perhaps they were damaged during installation. These are ESD HBM Class 0 sensitive devices I believe so they are easily damaged. If you believe the parts are faulty you will have to work with the distributor or ADI sales for consideration of replacement.
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