发明名称 |
Inspection apparatus and inspection method |
摘要 |
By allowing an electrical conduction between a probe and an electrode by a fritting phenomenon before inspection, simplification of circuit configuration and shortening of inspection time is achieved. A fritting circuit is formed in a probe card of an inspection apparatus for each probe pair consisting of two probes. A capacitor is connected to each fritting circuit. Each fritting circuit is connected in parallel to a power supply circuit having a charging power supply. Each capacitor is charged at one time by the power supply circuit. The probe pair is brought into contact with an electrode of a wafer, and a high-voltage is applied to the probe pair by a power charged in the capacitor, thereby achieving an electrical connection between each probe and the electrode by a fritting phenomenon. Then, an inspection of electrical characteristics is performed by using an electric inspection signal transmitted to each probe.
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申请公布号 |
EP2017634(A1) |
申请公布日期 |
2009.01.21 |
申请号 |
EP20080012480 |
申请日期 |
2008.07.10 |
申请人 |
TOKYO ELECTRON LIMITED |
发明人 |
KOMATSU, SHIGEKAZU;SHINOZAKI, DAI;SAKAMOTO, KATSUAKI |
分类号 |
G01R31/319;G01R1/067;G01R31/28;G01R31/3161 |
主分类号 |
G01R31/319 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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