United Microelectronics Corp.

Jiunn Hsien Lin

Ching-Hsing Hsieh

Chen-Chih Tsai

Chin-Ching Hsu

Shuh-Ren Chen

A method of forming a contact via includes forming a wiring, a first insulator layer, and a spin-on glass layer, respectively, over a semiconductor substrate. Fluorine ions are implanted into the spin-on glass layer. A second insulator layer is formed over the spin-on glass layer. The wiring is exposed by patterning the second insulator layer, the spin-on glass layer, and the first insulator layer, respectively.

Method of forming a contact via

A method of manufacturing epitaxial titanium silicide in a metal silicide processing has a lower than usual processing temperature requirement, and is therefore suitable for use in the manufacturing of integrated circuits. The epitaxial titanium silicide so formed is made without a grain boundary and is thus capable of lowering the electrical resistance of the titanium silicide. First, a silicon substrate with an exposed crystalline silicon layer on the surface is provided. Then a titanium layer and a titanium nitride layer are sequentially formed. Finally, using a rapid thermal processing, an epitaxial titanium silicide layer is formed.

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Yungkang, Taiwan

Jiunn Hsien Lin