Patent ID: 7115958
Filing Date: 2006-10-03
Classification: H01L

Abstract:
1. A lateral field-effect transistor comprising: interdigitated source and drain region fingers, a source region finger being separated from a first drain region finger on a first side by a first channel region and from a second drain region finger on a second side by a second channel region; a first gate member disposed over the first channel region and a second gate member disposed over the second channel region, the first and second gate members being substantially parallel; a drain electrode extending substantially over, and coupled with, the first and second drain region fingers; a gate electrode extending substantially over, and coupled with, the first gate member, the gate electrode and the drain electrode being disposed in a general plane; a source electrode that includes first and second source electrode segments each being coupled to the source region finger and each having first and second ends, the first end of the first source electrode segment being merged with the first end of the second source electrode segment, the second end of the first source electrode segment being merged with the second end of the second source electrode segment, the first source electrode segment being disposed substantially over the source region finger and including a laterally extended portion that substantially overlaps the second gate member, the gate electrode being laterally surrounded by the first and second source electrode segments, with the first source electrode segment being adjacent a first lateral side of the gate electrode and the second source electrode segment being adjacent a second lateral side of the gate electrode; and wherein a majority of a source current flows in the first source electrode segment, and a minority of the source current flows in the second source electrode segment, when the lateral field-effect transistor is in an on-state.