ALEXANDRIA, Va., March 31 -- United States Patent no. 12,593,635, issued on March 31, was assigned to NANYA TECHNOLOGY Corp. (New Taipei City, Taiwan).
"Semiconductor device structure with composite hard mask and method for preparing the same" was invented by Tse-Yao Huang (Taipei City, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A semiconductor device structure includes a first dielectric layer disposed over a semiconductor substrate, and a second dielectric layer disposed over the first dielectric layer. The semiconductor device structure also includes a first semiconductor structure disposed over the second dielectric layer. The first semiconductor structure has a first portion and a second port...