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. 16, 2003
Filed:
Sep. 12, 2002
Applicant:
Inventors:
Assignee:
Macronix International Co., Ltd., Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 1/606 ;
U.S. Cl.
CPC ...
G11C 1/606 ;
Abstract
The reference current generation circuit of a multiple bit flash memory. An identical boosted word-line voltage is applied to the gate terminal of reference memory cells in different reference current generation units and a different substrate voltage is applied to the substrate of each reference memory cell so that different reference currents are produced. This arrangement reduces different degree of shifting in the reference currents due to temperature and source voltage Vcc variation.