Abrading – Machine – Rotary tool
Patent
1997-06-24
1999-11-30
Scherbel, David A.
Abrading
Machine
Rotary tool
451312, 451555, B24B 700, B24B 2500, B24B 500
Patent
active
059933011
ABSTRACT:
An apparatus to clean gold plated contact surfaces on printed circuit boards uses a printed circuit board guide and cleaning units in contact with the printed circuit board guide. A guide rail on the printed circuit board guide is adapted to guide the printed circuit board having contaminated gold plated contact surfaces. The cleaning units include grindstones to abrade the gold plated contact surfaces and rub off the contaminants. Embodiments are capable of achieving cleaning uniformity, reducing failure rate, and enhancing the quality of the products. The effectiveness of the invention permits operators to carry out other operations during the cleaning process. Practice of the present invention also provides improved operating conditions without problems such as those due to the presence of waste eraser particles.
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Kim Choul-su
Kim Woo-Sig
Tsukue Masaharu
Bushnell Esq. Robert E.
Hoffmann Philip J.
Samsung Electronics Co,. Ltd.
Scherbel David A.
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