02-19-2019, 02:14 AM
https://www.tomshardware.com/news/tsmc-c...38636.html
Quote:TSMC said that the defects were due to a problematic batch of a photoresist material that contained a specific component that was abnormally treated by a chemical supplier. The treatment created a foreign polymer in the photoresist material that affected 12/16nm wafers at TSMC’s Fab 14B.
To protect its customers, TSMC removed a higher number of defective wafers than expected when it first learned about the problematic batch. The company expects the incident to reduce TSMC’s revenues for the first quarter by $550 million. However, the company expects to recuperate the loss in the second quarter.
The company has also moved some Q2 production into Q1. Therefore, the $550 million loss in the first quarter due to the bad batch is expected to be offset somewhat by an additional $230 million in revenue that was initially expected in Q2.