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:
Jan. 25, 2005
Filed:
Dec. 06, 2002
Young Joo Kim, Busan-Shi, KR;
Young Joo Kim, Busan-Shi, KR;
Hynix Semiconductor Inc., Ichon-Shi, KR;
Abstract
The present invention relates to a pumping circuit. The pumping circuit comprises a first pumping block for pumping an input voltage, a first latch for latching the output of the first pumping block, a second pumping block for pumping the output of the first pumping block according to a control signal, a second latch for latching the output of the second pumping block, and a switching circuit for selectively outputting the outputs of the first and second latches according to the control signal. Thus, a program voltage and a program verify voltage of different levels are pumped. The ripple and active current can be reduced and the program efficiency can be increased.