US Patent Issued to Texas Instruments on July 29 for "Control of locos structure thickness without a mask" (Texas Inventors)

ALEXANDRIA, Va., July 30 -- United States Patent no. 12,376,370, issued on July 29, was assigned to Texas Instruments Inc. (Dallas).

"Control of locos structure thickness without a mask" was invented by Abbas Ali (Plano, Texas), Christopher Scott Whitesell (Garland, Texas), John Christopher Shriner (Allen, Texas) and Henry Litzmann Edwards (Garland, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of fabricating an integrated circuit includes forming a first opening having a first width and a second opening having a second width in a first dielectric layer over a silicon substrate. The openings expose the silicon substrate and the exposed silicon substrate is oxidized to form first and second LO...