tia_design
Advanced Member level 4
Hi, All,
We just got a new tape-out. One the same wafer, about 60% failure because of big IDD current. Most of those failure and at the edge of the wafer. We measured the IDD by stepping up the VDD voltage. I-V curve look like a forward biased diode. Could anyone tell me what could be the problem. Thanks!
We just got a new tape-out. One the same wafer, about 60% failure because of big IDD current. Most of those failure and at the edge of the wafer. We measured the IDD by stepping up the VDD voltage. I-V curve look like a forward biased diode. Could anyone tell me what could be the problem. Thanks!
