Taiwan Semiconductor Manufacturing Comp. Ltd.

Chiang-Jeh Chen

Yu-Cheng Chang

Chieh-Jan Huang

Ming-Lee Lee

Keng-Hui Pan

Ming-Tzung Hsu

Cho-Ching Chen

Hui-Ming Chu

Paul Tan

A method includes moving a drum containing a chemical liquid into a chamber of a chemical liquid supplying system. The drum is connected with a testing pipe. The chemical liquid is pumped from the drum to the testing pipe. A condition of the chemical liquid flowing through the testing pipe is monitored. Whether the chemical liquid is supplied to a processing tool is determined based on the condition of the chemical liquid.

Method of supplying chemical liquid

In accordance with some embodiments, a method for processing semiconductor wafer is provided. The method includes connecting a drum which stores the chemical liquid with a testing pipe. The method also includes guiding the chemical liquid in the drum into the testing pipe. In addition, the method includes detecting a condition of the chemical liquid in the testing pipe. The method further includes determining if the condition of the chemical liquid is acceptable. When the condition of the chemical liquid is acceptable, supplying the chemical liquid to a processing tool at which the semiconductor wafer is processed.

Chemical liquid supplying system and method of supplying chemical liquid

A slurry dispensing system comprises a first supply station, a second supply station, a first loop, a second loop, a first valve and a second valve. The first loop is selectively connected to the first supply station and the second supply station. The second loop is also selectively connected to the first supply station and the second supply station. The first valve connects the first loop to points of use. The second valve connects the second loop to the points of use. When slurry is supplied to the first loop from the first slurry station, slurry is supplied to the second loop from the second slurry station. When the first valve is opened and the second valve is closed, slurry is supplied to the points of use from the first loop.

Slurry dispensing system

Growing community of inventors

Hsinchu, Taiwan

Chiang-Jeh Chen