The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 13, 2026
Filed:
Jun. 11, 2024
United Microelectronics Corp., Hsin-Chu, TW;
UNITED MICROELECTRONICS CORP., Hsin-Chu, TW;
Abstract
A semiconductor memory device includes a substrate, an active region defined in the substrate by a trench isolation structure, a pair of floating gates on the substrate and at two sides of a fish-bone shaped recessed region of the active region, a source line doped region in the fish-bone shaped recessed region of the active region, wherein a bottom surface of the source line doped region extends above a bottom surface of the trench isolation structure, an erase gate disposed between the floating gates and on the source line doped region, a word line disposed on the substrate and adjacent to a side of each of the floating gates opposite to the erase gate, and a bit line doped region in the substrate and adjacent to the word line.