METHOD FOR REPAIRING PRINTED CIRCUIT BOARD AND METHOD FOR MANUFACTURING RECYCLED PRINTED CIRCUIT BOARD

To provide a method for repairing a printed circuit board with damage or peeling and a method for manufacturing a recycled printed circuit board.SOLUTION: A method for repairing a printed circuit board 100 on which a pad 110 or a pattern is damaged or peeled off, includes: a plating step of plating...

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Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To provide a method for repairing a printed circuit board with damage or peeling and a method for manufacturing a recycled printed circuit board.SOLUTION: A method for repairing a printed circuit board 100 on which a pad 110 or a pattern is damaged or peeled off, includes: a plating step of plating a predetermined range of a printed circuit board with a metal having conductivity; a shaving step of, after the plating step, shaving the predetermined range until the predetermined range becomes flat; an application step of applying a photoresist 410 to a portion shaved in the shaving step; an exposure step of, after the application step, performing exposure by using a photomask 500 having the same layout data as that of a circuit pattern of a repair portion to plate the circuit pattern; a developing step of, after the exposure step, removing an unnecessary part of the photoresist 410 by using developer; and an etching step of, after the developing step, performing etching, removing the unnecessary metal having conductivity along the circuit pattern to reproduce the circuit pattern of the repair portion.SELECTED DRAWING: Figure 7 【課題】損傷又は剥離したプリント配線板を修理するプリント配線板の修理方法及び再生プリント配線板の製造方法を提供する。【解決手段】パッド110又はパターンが損傷又は剥離したプリント配線板100の修理方法であって、プリント配線板の所定範囲を、導電性を有する金属でメッキをするメッキ工程と、メッキ工程後、所定範囲を削り、所定範囲が平坦になるまで削る削り工程と、削り工程によって削った部分にフォトレジスト410を塗布する塗布工程と、塗布工程後、修理箇所の回路パターンと同じレイアウトデータのフォトマスク500を使用して露光し、回路パターンを焼き付ける露光工程と、露光工程後、現像液によって不要なフォトレジスト410部分を除去する現像工程と、現像工程後、エッチングを行い、回路パターンに沿って不要な導電性を有する金属を除去し、修理箇所の回路パターンを再生するエッチング工程と、を含む。【選択図】図7