Interface Optoelectronics (shenzhen) Co., Ltd.

General Interface Solution Limited

Reco Technology (chengdu) Co., Ltd

Hung-Chieh Lu

Yen-Heng Huang

Chung-Kai Chen

Shih-Chieh Huang

Li-Ting Cheng

Pei-Chun Hsieh

A fingerprint identification device includes a substrate, a piezoelectric layer, a conductive layer, and a planar layer. The piezoelectric layer is disposed on the substrate. The conductive layer is disposed on the piezoelectric layer, and the conductive layer has a rugged microstructure on an upper surface of the conductive layer. The planar layer is disposed on the conductive layer, and a bottom of the planar layer fills the rugged microstructure of the conductive layer.

Fingerprint identification device and manufacturing method thereof

The present disclosure provides an acoustic wave fingerprint recognition unit including a sensor circuit substrate, a film adhesive layer positioned on the sensor circuit substrate, a piezoelectric material layer positioned on the film adhesive layer and a protection layer positioned on the piezoelectric material layer. The film adhesive layer is formed of a film adhesive material, and the film adhesive material is composed of a film adhesive agent and an organic solvent. The film adhesive agent is an epoxy resin, and the organic solvent is a C3-C8 and carbonyl-containing organic solvent. The solid content of the film adhesive agent in the film adhesive material is in a range of 1%-90%. A method for manufacturing the acoustic wave fingerprint recognition unit is also provided herein.

Acoustic wave fingerprint recognition unit and method for manufacturing thereof

Growing community of inventors

Guangdong, China

Hung-Chieh Lu