Taiwan Semiconductor Manufacturing Comp. Ltd.

Yi-Chieh Huang

Hsiang-Fu Chen

Kuan-Chi Tsai

Kang-Yi Lien

Chia-Ming Hung

I-Hsuan Chiu

Wei-Tung Huang

A semiconductor device and method of manufacturing the device that includes a capacitive micromachined ultrasonic transducer (CMUT). The CMUT includes an integrated circuit substrate, and a sensing electrode positioned on the integrated substrate. The sensing electrode includes a sidewall that forms a wall of an isolation trench adjacent to the sensing electrode, and is patterned before covering dielectric layers are deposited. After patterning of the sensing electrode, one or more dielectric layers are patterned, with one dielectric layer patterned on the sensing electrode and sidewall, and which has a thickness corresponding to the surface roughness of the sensing electrode. The CMUT further includes a membrane positioned above the sensing electrode forming a cavity therein.

Semiconductor device and method of manufacturing same

A semiconductor device and method of manufacturing the device that includes a growth die and a dummy die. The method includes patterning, on an integrated circuit wafer, at one least growth die, and patterning at least one dummy die that is positioned on at least a portion of a circumference of the integrated circuit wafer. The patterned growth and dummy dies are etched on the wafer. A bond wave is initiated at a starting point on the integrated circuit wafer. The starting point is positioned on an edge of the integrated circuit wafer opposite the portion on which the at least one dummy die is patterned. Upon application of pressure at the starting point, a uniform bond wave propagates across the wafers, bonding the two wafers together.

Bond wave optimization method and device

Growing community of inventors

Tainan, Taiwan

Yi-Chieh Huang