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. 08, 2007
Filed:
Sep. 26, 2003
Takanori Yamazoe, Hadano, JP;
Takeo Kanai, Kodaira, JP;
Takanori Yamazoe, Hadano, JP;
Takeo Kanai, Kodaira, JP;
Renesas Technology Corp., Tokyo, JP;
Abstract
The present invention relates to a booster circuit of a non-volatile memory requiring a plus or minus high voltage equal to or higher than a power-supply voltage. The present invention can generate a high voltage of approximately 12 V even at a low power-supply voltage equal to or lower than 3 V and generate not only a plus high voltage but also a minus high voltage by the same circuit. Also, by combining a body-controlled type parallel charge pump, which is a booster circuit according to the present invention, with a serial-type charge pump, two types of high voltages can be efficiently generated and a reduction in chip areas can be achieved.