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:
Aug. 01, 2006
Filed:
Apr. 06, 2004
Kyu-nam Lim, Yongin-si, KR;
Kyu-Nam Lim, Yongin-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
Provided is a circuit and method of generating a boosted voltage while maintaining a constant difference between the boosted voltage and an array reference voltage when the array reference voltage is varied in a normal mode, a test mode, and a burn-in test mode of a semiconductor device. The boosted voltage generating circuit comprises a sensing signal generating circuit which generates a sensing signal, a pulse generating circuit which generates a driving signal in response to the sensing signal, and a pumping circuit which generates the boosted voltage in response to the driving signal to control a word line of a semiconductor device. The sensing signal generating circuit comprises a comparator which includes a first input terminal, a second input terminal for receiving a reference voltage, and an output terminal for outputting the sensing signal, a resistor coupled between the boosted voltage and the first input terminal, and a constant current source coupled between the first input terminal and a ground voltage.