ALEXANDRIA, Va., July 28 -- United States Patent no. 12,696,738, issued on July 28, was assigned to TEXAS INSTRUMENTS Inc. (Dallas).

"Transistor device with sinker contacts and methods for manufacturing the same" was invented by Hong Yang (Richardson, Texas), Michael F Chisholm (Garland, Texas), Yufei Xiong (Chengdu, China) and Yunlong Liu (Chengdu, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "In described examples, a device includes a semiconductor substrate; a buried layer; and a trench with inner walls extending from the buried layer to a surface of the semiconductor substrate, the trench having sidewalls, a bottom wall, a barrier layer including a titanium (Ti) layer covering the sidewalls and th...