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. 13, 2016
Filed:
Nov. 05, 2013
Ps4 Luxco S.a.r.l., Luxembourg, LU;
LONGITUDE SEMICONDUCTOR S.A.R.L., Luxembourg, LU;
Abstract
A semiconductor device is equipped with memory cells which are provided at the intersections of word lines and local bit lines, hierarchical switches which are respectively connected between the local bit lines and a global bit line, and a hierarchical sense amplifier which amplifies a potential difference generated between signal nodes, with the signal nodes being respectively connected to the local bit lines. According to the present invention, because the hierarchical sense amplifier is a differential type circuit, a stable sensing operation can be performed. In addition, because one hierarchical sense amplifier can be assigned to multiple local bit lines, the number of hierarchical sense amplifiers can be reduced.