发明授权
- 专利标题: Apparatus for coating surfaces of a substrate
- 专利标题(中): 用于涂覆基材表面的装置
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申请号: US390579申请日: 1982-06-21
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公开(公告)号: US4383495A公开(公告)日: 1983-05-17
- 发明人: George J. Plichta , Thomas E. Unger
- 申请人: George J. Plichta , Thomas E. Unger
- 申请人地址: NY New York
- 专利权人: Western Electric Company, Inc.
- 当前专利权人: Western Electric Company, Inc.
- 当前专利权人地址: NY New York
- 主分类号: H05K1/05
- IPC分类号: H05K1/05 ; H05K1/09 ; H05K3/12 ; H05K3/40 ; H05K3/42
摘要:
The walls 41 (FIG. 4) of thru holes 11 in a printed wiring board substrate 12 are coated with a liquid 24 by inserting fingers 22 into the thru holes. Each of the fingers has a diameter slightly less than the diameter of the associated thru hole and has a length no greater than the thickness of the substrate 12. After ink 24 has been applied to the top surface of the substrate, the inserted fingers 22 are withdrawn, thereby drawing the ink down into the thru holes and coating the walls 41. In another embodiment, fingers 62 are aligned with selected portions 52 of an edge 55 of the substrate 50 to coat the portions of the edge as the fingers are moved by the edge after the heads of the fingers have been coated with the ink 24.
公开/授权文献
- US4970234A Furyl, phenylene, and thienyl leukotriene B.sub.4 analogues 公开/授权日:1990-11-13