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:
Nov. 24, 2015
Filed:
Jun. 18, 2012
Yukihiro Utsuno, Fukushima-Ken, JP;
Yukihiro Utsuno, Fukushima-Ken, JP;
Cypress Semiconductor Corporation, San Jose, CA (US);
Abstract
A semiconductor device in accordance with one embodiment of the invention can include a semiconductor substrate having a groove, a bit line, a pocket implantation region, a bottom insulating membrane, and a charge accumulation region. The bit line is formed on a side of the groove in the semiconductor substrate and acts as a source and a drain. The pocket implantation region is formed to touch (or contact) the bit line, has a similar conductivity type as the semiconductor substrate, and has a dopant concentration higher than that of the semiconductor substrate. The bottom insulating membrane is formed on and touches (or contacts) a side surface of the groove. The charge accumulation layer is formed on and touches (or contacts) a side surface of the bottom insulating membrane.