发明申请
US20050035432A1 DC/DC converter using bipolar transistor, method of manufacturing the same and DC power supply module using the same
失效
使用双极晶体管的DC / DC转换器，制造相同的方法和使用其的直流电源模块
- 专利标题： DC/DC converter using bipolar transistor, method of manufacturing the same and DC power supply module using the same
- 专利标题（中）： 使用双极晶体管的DC / DC转换器，制造相同的方法和使用其的直流电源模块
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申请号： US10946004申请日： 2004-09-22
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公开(公告)号： US20050035432A1公开(公告)日： 2005-02-17
- 发明人: Osamu Kawabata , Koji Nakano , Jun Utsumi
- 申请人： Osamu Kawabata , Koji Nakano , Jun Utsumi
- 优先权： JP191551/2003 20030704
- 主分类号： H01L21/331
- IPC分类号： H01L21/331 ; H01L29/10 ; H01L29/737 ; H02M3/155 ; H01L29/70
摘要：
A DC/DC converter is comprised of a bipolar transistor, an inductor, a smoothing capacitor, an input terminal, an output terminal, and a grounded terminal. A base of the transistor includes a silicon germanium layer. The bipolar transistor has a high switching speed and a low on-state voltage through an optimization of a structure of the transistor.
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