Optics: measuring and testing – Inspection of flaws or impurities – Having predetermined light transmission regions
Patent
1997-02-14
1999-02-02
Font, Frank G.
Optics: measuring and testing
Inspection of flaws or impurities
Having predetermined light transmission regions
228105, 228 9, 228 41, 228246, B23Q 15013, B23K 3514, G01N 2101
Patent
active
058672605
ABSTRACT:
A conductive ball mounting apparatus and a mounting method for mounting a conductive ball for forming a bump without erroneously mounting an additional conductive ball in a workpiece, comprising a workpiece positioning section, a conductive ball feeding section, a mounting head provided with a plurality of suction holes each of which has a recess capable of storing one conductive ball on the bottom surface of the head, a moving device for moving the mounting head between the workpiece positioning section and the conductive ball feeding section, and a detecting device for detecting conductive balls erroneously additionally attached to the bottom surface of the mounting head without being stored in recesses arranged on the moving route of the mounting head.
REFERENCES:
patent: 5465152 (1995-11-01), Bilodeau et al.
patent: 5601229 (1997-02-01), Nakazato et al.
patent: 5615823 (1997-04-01), Noda et al.
"Concept of Automatism," published by Chuan-Hwa Book Store, 1992, pp. 132-139, 172, 173, 182-185.
"Accurate meter and mechanical element detecting," published by New-Technology Co., 1993, pp. 130, 131.
"Ingenious Mechanism," vol. II, published by Kuo-Shing Co., 1984, pp. 288, 289, 460 and 467.
Font Frank G.
Matsushita Electric - Industrial Co., Ltd.
Smith Zandra V.
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