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:
May. 20, 2014
Filed:
Feb. 26, 2013
Applicant:
Seiko Instruments Inc., Chiba, JP;
Inventor:
Taro Yamasaki, Chiba, JP;
Assignee:
Seiko Instruments Inc., Chiba, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 5/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A nonvolatile semiconductor memory device, having a booster circuit capable of performing a boost operation with appropriate boost voltage arrival time without increasing the circuit size. The nonvolatile semiconductor memory device includes a timing generator circuit and a current load circuit which applies a current load to an output of a booster unit according to a signal from the timing generator circuit, thereby achieving an appropriate boost voltage arrival time by using the current load circuit in concert with the operation of erasing or writing on memory cells.