US Patent Issued to Pakal Technologies on March 11 for "Vertical insulated gate power switch with isolated base contact regions" (Washington, Oregon, California Inventors)

ALEXANDRIA, Va., March 12 -- United States Patent no. 12,249,642, issued on March 11, was assigned to Pakal Technologies Inc. (San Francisco).

"Vertical insulated gate power switch with isolated base contact regions" was invented by Paul M Moore (Hillsboro, Ore.), Richard A Blanchard (Los Altos Hills, Calif.) and Vladimir Rodov (Seattle).

According to the abstract* released by the U.S. Patent & Trademark Office: "In a vertical power device with trenched insulated gates, there is an npnp layered structure. The vertical gates turn on the device with a suitable gate bias to conduct a current between a top electrode and a bottom electrode. In an example, implanted n+ source regions are formed in the top surface within a p-well. Between some g...