H - Electricity – 05 – K
Patent
H - Electricity
05
K
H05K 1/16 (2006.01) C23F 1/00 (2006.01) H01C 17/24 (2006.01) H01C 17/242 (2006.01) H05K 3/06 (2006.01) H05K 3/18 (2006.01)
Patent
CA 2434161
A process is revealed whereby resistors can be manufactured integral with a printed circuit board by plating the resistors onto the insulative substrate. Uniformization of the insulative substrate through etching and oxidation of the plated resistor are discussed as techniques for improving the uniformity and consistency of the plated resistors. Trimming and baking are also disclosed as methods for adjusting and stabilizing the resistance of the plated resistors.
L'invention concerne un procédé dans lequel des résistances peuvent être fabriquées d'une seule pièce avec une carte de circuit imprimé par métallisation desdites résistantes sur un substrat isolant. L'uniformisation du substrat isolant par gravure et oxydation des résistances métallisées est une technique qui permet d'améliorer l'uniformité et la régularité des résistances métallisées. L'invention concerne également des procédés d'ajustage et d'étuvage utilisés pour régler et stabiliser la résistance desdites résistances métallisées.
Castaldi Steven
Durso Frank
Fritz Dennis
Kukanskis Peter
Sawoska David
Gowling Lafleur Henderson Llp
Macdermid Incorporated
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