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:
Jul. 12, 2016
Filed:
Sep. 08, 2015
Sandisk Technologies Inc., Plano, TX (US);
Kiyokazu Shishido, Yokkaichi, JP;
Takuya Futase, Yokkaichi, JP;
Noritaka Fukuo, Yokkaichi, JP;
Yuji Takahashi, Yokkaichi, JP;
Shunsuke Watanabe, Yokkaichi, JP;
Katsuo Yamada, Yokkaichi, JP;
Masami Uozaki, Yokkaichi, JP;
SanDisk Technologies LLC, Plano, TX (US);
Abstract
A first depression and a second depression are formed in an upper surface of a first metal layer. A dielectric layer is formed over the first metal layer. Subsequently, a wide trench is formed in the dielectric layer, the wide trench extending deeper in a first outer region and in a second outer region than in a central region located between the first outer region and the second outer region, the first outer region overlying the first depression and the second outer region overlying the second depression.