发明名称 CIRCUIT PATTERN INSPECTION DEVICE
摘要 <p>A circuit pattern inspection device disposes a plurality of extinction electrodes in close proximity or is adjacent to both sides of a feeding electrode of an inspection unit to form an electric field distribution in the direction opposite to the direction of the electric field generated by an inspection signal by applying an extinction signal of an AC to shift a phase to the inspection signal applied to a conductive pattern to be inspected; to selectively feed the conductive pattern to be inspected by shaving a lower part of the electric field distribution by the inspection signal and form a composite electric field distribution which is sharpened; and to perform properly the determination of a good or a defective conductor pattern from an obtained detection signal.</p>
申请公布号 KR20140090096(A) 申请公布日期 2014.07.16
申请号 KR20140000643 申请日期 2014.01.03
申请人 OHT INC. 发明人 HAMORI HIROSHI
分类号 G01R31/28 主分类号 G01R31/28
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