ALEXANDRIA, Va., Sept. 3 -- United States Patent no. 12,406,883, issued on Sept. 2, was assigned to Infineon Technologies Dresden GmbH & Co. KG (Dresden, Germany).
"Contact hole" was invented by Thomas Bertrams (Dresden, Germany), Maik Stegemann (Pesterwitz, Germany), Armin Tilke (Dresden, Germany) and Sascha Weber (Bannewitz, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A power semiconductor component includes a power semiconductor partial structure having an insulating layer arranged on an upper side of a semiconductor body. A contact hole arranged on an upper side of the insulating layer proceeds from that side, extending at least partly within the insulating layer. An adhesion promoter layer ar...