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:
Dec. 02, 2014
Filed:
Sep. 17, 2013
Elpida Memory, Inc., Tokyo, JP;
Takeshi Kishida, Tokyo, JP;
PS4 Luxco S.a.r.l., Luxembourg, LU;
Abstract
A semiconductor device may include, but is not limited to, a semiconductor substrate having a device isolation groove defining first to fourth device formation portions. The second device formation portion is separated from the first device formation portion. The third device formation portion extends from the first device formation portion. The third device formation portion is separated from the second device formation portion. The fourth device formation portion extends from the second device formation portion. The fourth device formation portion is separated from the first and third device formation portions. The third and fourth device formation portions are positioned between the first and second device formation portions.