Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
Compared to convential PAD structure, the ESD ckt is put under PAD. So the dimension of I/O pad is reduced. (because in the conventional PAD structure, the ESD ckt can't be put under PAD, so need more area for ESD ckt)