US Patent 7278206 Method of preparing terminal board
Patent 7278206 was granted and assigned to Disco Corporation on October, 2007 by the United States Patent and Trademark Office.
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A terminal board having a plurality of terminals on which ball electrodes are formed can be prepared efficiently and economically without having any short-circuiting between terminals when its terminals formed in very close proximity to one another, as on an interposer (1), have their heads made uniform in height by causing the terminals (4) to project from a surface of a board (2) coated with a resist film, and applying a cutting tool (19) to the surface of the board (2) having the terminals project therefrom to carry out lathe turning for the heads of the terminals (4), while having the terminal board held by a rotatable chuck table (17) and rotating the chuck table (17).
US Patent 07278206 Method of preparing terminal board US Patent 7278206 Method of preparing terminal board
US Patent 07278206 Method of preparing terminal board
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