Patent ID: 7934801
Filing Date: 2011-05-03
Classification: B41J,H05K

Abstract:
1. A method of manufacturing a recording head which includes an actuator unit having a plurality of individual electrodes corresponding to a plurality of recording elements, and a flexible printed circuit board which supplies to the individual electrodes a signal for driving the recording elements, the method comprising: a bump forming step to form, on a surface of the actuator unit, a plurality of conductive bumps each electrically connected to each of the plurality of individual electrodes; a solder paste application step to partially apply solder paste bodies onto a plurality of terminals of a wiring which is formed on the printed circuit board; a heating step to heat each of the plurality of solder paste bodies applied onto the plurality of terminals, to thereby form a plurality of solder layers on the plurality of terminals; a covering step to cover the plurality of terminals and the plurality of solder layers by an uncured synthetic resin layer; a contact step to contact the plurality of bumps and the plurality of solder layers with each other, by pressing regions of the synthetic resin layer covering the solder layers and the bumps to each other thereby deforming the synthetic resin layer; and a curing step to cure the uncured synthetic resin layer.