发明授权
- 专利标题： Semiconductor device capable of generating a plurality of voltages
- 专利标题（中）： 能够产生多个电压的半导体器件
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申请号： US09699370申请日： 2000-10-31
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公开(公告)号： US06429724B1公开(公告)日： 2002-08-06
- 发明人: Taku Ogura , Masaaki Mihara
- 申请人： Taku Ogura , Masaaki Mihara
- 优先权： JP10-143213 19980525
- 主分类号： G05F110
- IPC分类号： G05F110
摘要：
Output nodes (Noutn, Noutp) outputting a negative potential (VN) and a positive potential (VPS) respectively are supplied with fixed potentials by reset circuits respectively when unused. Switches (SW2, SW3) conduct when generating the negative potential, while switches (SW1, SW4) conduct when generating the positive potential. Reference potentials for the generated potentials are supplied to internal nodes N10, N20) through the switches (SW1, SW3) respectively. Poly-diode elements are employed for a voltage generation part, whereby a charge pump circuit capable of generating positive and negative voltages can be implemented without remarkably changing a fabrication method.
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