Patent ID: 6316808
Filing Date: 2001-11-13
Classification: H01L

Abstract:
A body contacted SOI transistor device formed upon a substrate, comprising:a transistor having a source, and a drain separated by a gate which has a body contact therefor formed of a poly layer for contact with said gate, and whereina shaped field oxide opening exposing active silicon is formed with a topology which overlaps the gate structure which separates the source and the drain and which has a linear extension area over the shaped field oxide opening as well as an area normal to said lineal extension area to define the gate for said transistor with which a first gate part of the transistor is mirrored by a second mirror image gate part of the first gate part when the topology of the gate is viewed from above, whereby a misalignment in a first direction will make the transistor device width larger, while a misalignment in a second direction opposite the first direction will make the device width smaller to remove overlay tolerance from the effective transistor width, andwherein the gate structure is formed of a pair of top-to-top ""T"" shaped elements which are laid to bound a single body with the area normal to the lineal extension area of each ""T"" being aligned and generally parallel to one another to bound and contact the body contact area of said transistor device.