Taiwan Semiconductor Manufacturing Comp. Ltd.

Hao Wei Chang

Kuo-Hung Lo

Kun-Hsi Li

Shau-Wei Lu

Jen Song Liu

Kang-Yu Hsu

Yao-Chung Hu

Jen Shang Fang

Bii Junq Chang

Bii Juno Chang

A Static Random Access Memory (SRAM) cell includes a write port including a first inverter including a first pull-up transistor and a first pull-down transistor, and a second inverter including a second pull-up transistor and a second pull-down transistor and cross-coupled with the first inverter; and a read port including a read pass-gate transistor and a read pull-down transistor serially connected to each. A first doped concentration of impurities doped in channel regions of the second pull-down transistor and the read pull-down transistor is greater than a second doped concentration of the impurities doped in a channel region of the first pull-down transistor, or the impurities are doped in the channel regions of the second pull-down transistor and the read pull-down transistor and are not doped in the channel region of the first pull-down transistor.

Eight-transistor static random access memory, layout thereof, and method for manufacturing the same

A system for pumping resist to a wafer coating machine includes a line that returns a selected proportion of the resist entering the resist pump to the resist supply tank. The return line to the tank is connected to the pump outlet at a higher point than the pump outlet to the wafer coating machine, and the resist that is returned to the tank carries substantially all of the bubbles that are carried in the resist entering the tank. The bubbles are removed from the resist in the tank and the resist can be used normally.

Photoresist supply system with air venting

Growing community of inventors

Hsin Chu, Taiwan

Hao Wei Chang