Fitzpatrick, Cella, Harper & Scinto
Ink jet recording head, method for producing the same and recording apparatus equipped with the same
An ink jet recording head with a heat-generating resistance layer for generating thermal energy used for ink discharge, and a wiring electrode layer electrically connected to the heat-generating resistance layer to form an electro-thermal converting element, an insulating protective layer covering the electro-thermal converting element, and an external electrical connection portion electrically connected to the electro-thermal converting element and configured to connect to an external wiring for applying a voltage to the electro-thermal converting element. Further, the external electrical connection portion is formed by a layer grown by electroless plating from the wiring electrode layer through a through hole formed in the insulating protective layer. The external electrical connection portion projects beyond the insulating protective layer and has a flat surface at the most extended projection of the external electrical connection portion.
Canon Kabushiki Kaisha
B B B B B B B B B Y B
B41J B41J B41J B41J B41J B41J B41J B41J B41J Y10T B41J
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Masahiko Toshihiro Teruo Shuji Masashi
Kubota Mori Ozaki Koyama Kitani