Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2005-10-18
2005-10-18
Trinh, Minh (Department: 3729)
Metal working
Method of mechanical manufacture
Electrical device making
C029S846000, C029S829000, C029S830000, C029S831000, C029S853000, C427S096500, C427S097200, C427S097500, C427S097900
Reexamination Certificate
active
06954985
ABSTRACT:
A hole plugging method for a printed circuit board, a hole plugging device in accordance therewith and a manufacturing method in accordance therewith where a mask for selectively exposing a via hole, a through hole and a surface pattern of the printed circuit board is positioned on the board having the via hole and the through hole to electrically connect circuit patterns formed on the surface of the board and in the board and an insulating material is plugged in the via hole by abutting and pushing the material on the surface of the board. Therefore, the insulating material can be plugged smoothly without a void, the processing is simplified by plugging the insulating material just to the height of the circuit pattern in a space between the circuit patterns and accordingly, damage to the circuit pattern can be prevented.
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Cho Sung Sik
Choi Ho Sung
Jang Yong Soon
Kim Yong Il
Kim Young Hwan
Birch & Stewart Kolasch & Birch, LLP
LG Electronics Inc.
Nguyen Donghai D.
Trinh Minh
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