After the merger, Precision Silicon Corp. has become the second-largest silicon epitaxial supplier in Taiwan.

However, the deal is expected to close on February 1 next year, the companies said. Precision Silicon shares fell by 0.97 percent to NT$10.2 in Taipei trading, while shares of Episil Holding Inc, the parent company of Episil Semiconductor, dropped by 0.55 percent to NT$7.22. 　

Episil Semiconductor Wafer Inc., previously known as Episil Technologies Inc. In January 2015, Episil Technologies’ wafer and compound semiconductor businesses were spun off to form an independent company. Episemi has a workforce of around 450 people, paid-in capital of around NT$800 million and was the first manufacturer to use the epitaxial process in Taiwan.

The company specializes in high-mix, low-volume production to custom specifications and use special processes to produce epitaxy wafers for high device density, high conversion efficiency and high power loading applications. These are extensively used in power, bipolar and BiCMOS devices.