发明授权
- 专利标题： Light-emitting element, light-emitting device, electronic device and quinoxaline derivative
- 专利标题（中）： 发光元件，发光元件，电子器件和喹喔啉衍生物
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申请号： US12033245申请日： 2008-02-19
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公开(公告)号： US07875879B2公开(公告)日： 2011-01-25
- 发明人: Tsunenori Suzuki , Satoshi Seo , Sachiko Kawakami
- 申请人： Tsunenori Suzuki , Satoshi Seo , Sachiko Kawakami
- 申请人地址： JP
- 专利权人： Semiconductor Energy laboratory Co., Ltd.
- 当前专利权人： Semiconductor Energy laboratory Co., Ltd.
- 当前专利权人地址： JP
- 代理机构： Husch Blackwell LLP Welsh Katz
- 优先权： JP2007-040379 20070221
- 主分类号： H01L35/24
- IPC分类号： H01L35/24 ; H01L51/00
摘要：
A substrate including a semiconductor layer, where characteristics of an element can be evaluated with high reliability, and an evaluating method thereof are provided. A substrate including a semiconductor layer of the invention has a closed-loop circuit in which an antenna coil and a semiconductor element are connected in series, and a surface of an area over which the circuit is formed is covered with an insulating film. By using such a circuit, a contactless inspection can be carried out. Further, a ring oscillator can be substituted for the closed-loop circuit.
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