Microjet Technology Company, Ltd.

Chiang-Ho Cheng

Chi-Feng Huang

Hsien-Chung Tai

Kwo-Yuan Shi

Ke-Ming Huang

Wen-Ti Lo

An inkjet head manufacturing method includes the following steps. Firstly, a multilayered structure with a plurality of microstructure layers is provided. The alignment check holes of the microstructure layers are concentric and have different diameters. Then, the microstructure layers are stacked together and the microstructure layers are aligned with each other according to the concentric and different-diameter alignment check holes, wherein a dry film layer is sandwiched between every two adjacent microstructure layers. The preset slots of the microstructure layers are collectively defined as inlet flow channels, ink chambers, pressure cavities and outlet flow channels. Then, the multilayered structure is assembled and positioned through the dry film layers by a thermal compression process. Then, a cutting knife is used to linearly cut the actuator plate over a spacer between every two adjacent pressure cavities and along a path parallel with rims of the pressure cavities.

Inkjet head manufacturing method

A piezoelectric inkjet head structure includes an upper cover plate, a lower cover plate, a piezoelectric actuating module, a nozzle plate and a seal layer. The piezoelectric actuating module includes an upper piezoelectric chip, a lower piezoelectric chip, a first electrode, a second electrode, a conductive layer and a plurality of flow channels. The entrances of the flow channels of the upper piezoelectric chip and the lower piezoelectric chip are separated from each other by the same spacing interval. The entrances of the flow channels of the upper piezoelectric chip and the entrances of the flow channels of the lower piezoelectric chip are arranged in a staggered form. During operation of the piezoelectric actuating module, ink liquid is introduced into the flow channels of the piezoelectric actuating module from the upper cover plate and the lower cover plate, and then ejected out of the nozzles.

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Hsinchu, Taiwan

Chiang-Ho Cheng