Electric heating – Metal heating – By arc
Patent
1993-09-24
1994-11-15
Albritton, C. L.
Electric heating
Metal heating
By arc
21912169, B23K 2602
Patent
active
053650344
ABSTRACT:
A laser beam is irradiated and scanned on a substrate of a liquid crystal display device of an active matrix type. Pairs of electrons and holes caused by the known internal photoelectric effect are produced by irradiation of the laser beam to electrical conductive thin films including silicon layered on the substrate, and pass through a defective part of short circuit in an intersection of the plural electrical conductive thin films, and thereby a current flowing through the intersection increases and a position of the defect determined on the basis of the scanning position of the laser beam and the increase of the current.
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Katayama et al.: High-Resolution Full-Color LCDs Addressed by Double-Layered Gate-Insulator a-SI TSTs SID 88 Digest; pp. 310-313.
Henley, F. J.: "Flat-Panel in-Process Test, Repair and Inspection: An Overview"; SID 92 Digest; pp. 623-627.
"7 Laser Microscope" of `Forefront of Laser Technology`, published on Nov. 30, 1992 from Nikkei Gijutsu Tosho Co., Ltd.; pp. 222-229.
Furuta Mamoru
Kawamura Tetsuya
Miyata Yutaka
Sano Hiroshi
Yoshioka Tatsuo
Albritton C. L.
Matsushita Electric - Industrial Co., Ltd.
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