发明名称 CIRCUIT BOARD INSPECTION METHOD AND CIRCUIT BOARD INSPECTION APPARATUS
摘要 The present invention relates to a substrate inspection method which can conveniently perform checking whether a contact is in contact with an inspection point in a short time. The substrate inspection method performs a four-terminal measurement method with respect to the wiring pattern of a substrate, on which multiple wirings are formed. An upstream-side detection terminal connected to a detection means and contacts connected to the downstream-side detection terminal are connected in series. Power is supplied to the contacts connected in series. Electrical measurement is performed between the contacts connected in series. An electrical characteristic between the contacts connected in series is calculated from the power and the result of the electrical measurement. The state of a through contact between the contacts connected in series and the inspection point is determined based on the calculated electrical characteristic.
申请公布号 KR20160041755(A) 申请公布日期 2016.04.18
申请号 KR20150117980 申请日期 2015.08.21
申请人 NIDEC-READ CORPORATION 发明人 YAMASHITA MUNEHIRO
分类号 H01L21/66 主分类号 H01L21/66
代理机构 代理人
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