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. 01, 2008
Filed:
Aug. 08, 2006
Tae-seong Jang, Yongin-si, KR;
Tae-Seong Jang, Yongin-si, KR;
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Abstract
A semiconductor memory device capable of reducing the number of pads is provided. The semiconductor memory device may include a pad, a power supply voltage generating circuit and a voltage selection circuit. The power supply voltage generating circuit may generate one or more power supply voltages, which may be used in a semiconductor device. The voltage selection circuit may select one of the power supply voltages in response to test mode signals to provide the selected power supply voltage to the pad. The voltage selection circuit may include a voltage level regulating circuit to convert voltage levels of the test mode signals to generate gate control signals and metal-oxide semiconductor (MOS) transistors connected to the power supply voltages, respectively. The MOS transistors may be selectively turned on in response to the gate control signals to provide the selected power supply voltage to the pad.