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. 11, 2006
Filed:
Mar. 30, 2004
Gen Koshita, Tokyo, JP;
Gen Koshita, Tokyo, JP;
Elpida Memory, Inc., Tokyo, JP;
Abstract
A boosting circuit includes first to third charge pump circuits and a switching unit. The first to third charge pump circuit which contains first to third capacitive section charged to the first voltage, respectively. The switching unit connects the first charge pump circuit and the second charge pump circuit in series in response to a first switch signal and a control signal such that a second voltage higher than the first voltage is outputted from a first node to a first internal circuit of a semiconductor device. Also, the switching unit connects the first charge pump circuit, the second charge pump circuit and the third charge pump circuit in series in response to a second switch signal and the control signal, such that a third voltage is outputted from a second node to a second internal circuit of the semiconductor device.