发明申请
- 专利标题： Discharge electrode, a discharge lamp and a method for manufacturing the discharge electrode
- 专利标题（中）： 放电电极，放电灯以及放电电极的制造方法
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申请号： US12010934申请日： 2008-01-31
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公开(公告)号： US20080160872A1公开(公告)日： 2008-07-03
- 发明人: Tadashi Sakai , Tomio Ono , Naoshi Sakuma , Mariko Suzuki , Hiroaki Yoshida
- 申请人： Tadashi Sakai , Tomio Ono , Naoshi Sakuma , Mariko Suzuki , Hiroaki Yoshida
- 申请人地址： JP Tokyo
- 专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人地址： JP Tokyo
- 优先权： JPP2003-202518 20030728
- 主分类号： H01J9/02
- IPC分类号： H01J9/02
摘要：
A discharge electrode emitting electrons into a discharge gas, encompasses an emitter and current supply terminals configured to supply electric current to the emitter. The emitter embraces a wide bandgap semiconductor having at 300 K a bandgap of 2.2 eV or wider. Acceptor impurity atoms and donor impurity atoms being doped in the wide bandgap semiconductor, the activation energy of the donor impurity atoms being larger than the activation energy of the acceptor impurity atoms.
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