Patent ID: 7087973
Filing Date: 2006-08-08
Classification: H01L,H02M

Abstract:
1. A transistor comprising: a substrate having first, second, and third regions, wherein the second region includes a dopant of a first conductivity type, the first and third regions include a dopant of a second conductivity type, with at least a first subportion of the first region and a first subportion of the third region including a high concentration of the dopant, and the second region is disposed between the first and third regions and forms a body of the transistor; a gate electrode overlying the second and third regions, without overlying at least said first subportion of the first region; and an implant region of the second conductivity type and formed within and contiguously coupling the first, second, and third regions, and beneath the gate electrode, wherein a portion of the implant region extends beyond an edge of the gate electrode toward said first subportion of the first region having the high dopant concentration, wherein the first subportion of the first region is formed within a second subportion of the first region, the second subportion of the first region has a lower concentration of the dopant of the second conductivity type than the first subportion of the first region, the second subportion of the first region is between the first subportion thereof and the second region, the gate electrode overlies the second subportion of the first region, and a portion of the implant region is formed at least in the second subportion of the first region, and wherein the implant region extends across the second subportion of the first region and into the first subportion of the first region.