Patent ID: 7692217
Filing Date: 2010-04-06
Classification: H01L

Abstract:
1. An integrated circuit, comprising: a first matched transistor comprising: a first source region, a first drain region formed within a first drain well extension, and a first gate electrode having lateral edges about which the first source region and first drain region are laterally disposed; a second matched transistor comprising: a second source region, a second drain region formed within a second drain well extension, and a second gate electrode having lateral edges about which the second source region and second drain region are laterally disposed; analog circuitry associated with the first and second matched transistors, which analog circuitry utilizes a matching characteristic of the first and second matched transistors to facilitate analog functionality; wherein the first transistor has a T-shaped channel defining different channel widths under the first gate electrode in a separation region between the first source region and the first drain region.