H - Electricity – 05 – K
Patent
H - Electricity
05
K
H05K 1/18 (2006.01) H05K 1/16 (2006.01) H05K 3/00 (2006.01) H05K 1/09 (2006.01) H05K 3/46 (2006.01)
Patent
CA 2246405
A circuit board having an electric component which has an electric element smaller than a conventional element. A circuit pattern (5) which includes a pair of contact electrodes (3 and 3) is formed on the surface of a board (1) made of an insulating material. A photoresist film (7) is formed on the surface of a board (1). At least one electric element forming hole (9) is formed in the photoresist film (7) by a lithography technology so as to expose at least part of the pair of the contact electrodes (3 and 3). The electric element forming hole (9) is filled with an electric element forming paste material to form an electric element (13). A protective film (15) made of a synthetic resin is so formed as to close the electric element forming hole (9).
L'invention porte sur une carte de circuit possédant un composant électrique de taille inférieure à celle d'un composant traditionnel. Un motif (5) de circuit, comprenant une paire d'électrodes de contact (3 et 3), est formé sur la surface d'une carte (1) fabriquée dans un matériau isolant. Un film de photorésine (7) est formé sur la surface de la carte (1). Au moins un trou (9) formant un élément électrique est ménagé dans le film de photorésine (7) par un procédé lithographique de façon à découvrir au moins une partie de la paire d'électrodes de contact (3 et 3). Le trou (9) formant l'élément électrique est rempli d'une pâte de manière à former un élément électrique (13). On obtient ainsi un film protecteur (15) en résine synthétique permettant de fermer le trou (9) formant l'élément l'électrique.
Higashi Koji
Ishiyama Ichiro
Nagare Ichiro
Ohara Yozo
Yamazaki Morikatsu
Borden Ladner Gervais Llp
Hokuriku Electric Industry Co. Ltd.
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