Patent ID: 7015545
Filing Date: 2006-03-21
Classification: H01L

Abstract:
1. An RF MOS transistor in a semiconductor substrate, said RF MOS transistor comprising: a plurality of first source/drain regions elongated in a first direction and formed in said semiconductor substrate; a plurality of second source/drain regions elongated in the first direction and formed in said semiconductor substrate, said elongated first source/drain regions displaced along a second direction from, parallel to, and interdigitated with said elongated second source/drain regions, the first direction orthogonal to the second direction; a plurality of gate electrodes elongated in the first direction and over said semiconductor substrate defining channel regions separating said elongated first source/drain regions from said elongated second source/drain regions; and a plurality of tap regions elongated in the first direction and formed in said semiconductor substrate displaced along the second direction from, parallel to, and interdigitated with said elongated first and second source/drain regions, said elongated tap regions providing an electrical voltage reference for said channel regions and arranged so that each elongated second source/drain region is contiguous along the first direction to an elongated tap region.