TAIPEI, Taiwan - Taiwan’s Ministry of Science and Technology (MOST) yesterday held an “Exploring Secrets of Quantum ...
TAIPEI, Taiwan - TSMC on last Friday in Southern Taiwan Science Park held a groundbreaking ceremony for the first phase ...
The Deputy Minister of MOST Chien Chung-liang emphasized that this findings showing TSMC's defect rate lowered 11 percent to 14 percent which means wafer production at the early stage, not that of at the mass production stage. “I hope that this findings won't confuse you all, becasue the defect-free rate of TSMC is very high.”
Chien Chung-liang said that in the 2016 MOST R&D program has highlighted big data, echoing Intel and TSMC tried to find solutions out of big data lately.
This big data research team is led by the research fellow of Institute of Statistical Science Academia Sinica Ing Ching-kang, he stated that the manufacturing process of wafer is complicated for in which needed to be painted layer by layer. “It's extremely important for those wafer developers to find out the key machines at the early test stage to improve the defect-free rate. Big data is the way to find out that key machines.”
“If one wafer is needed to pass through 300 machines, generally speaking, to find out the problem machine is 2 to the power of 300, which is definitely a big data.” Ing added.
Ing Ching-kang gave a clearly example on how big data is working in this field. Firstly, ranking the machines in terms of performance based on statistics. Secondly, setting the truncation point by probability. Thirdly, examining to find out the problem machines.
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