Patent ID: 8796108

Claim:
A method of forming a diode, said method comprising: forming adjacent well regions in a semiconductor layer, said adjacent well regions comprising: a first well region, having a first type conductivity; and a second well region, having a second type conductivity different from said first type conductivity, said second well region being positioned laterally adjacent to and abutting said first well region at an interface; and forming contact regions and at least one isolation region at a top surface of said semiconductor layer such that a first contact region, having said first type conductivity, is positioned within said first well region, such that a second contact region, having said second type conductivity, traverses said interface with a first end extending laterally into said first well region and a second end extending laterally into said second well region, said first end and said second end having different lengths, and such that an isolation region is positioned within said first well region between said first contact region and said first end of said second contact region.