Patent ID: 7816236
Filing Date: 2010-10-19
Classification: C23C,C30B,H01L

Abstract:
1. A method of selective deposition of a silicon-containing layer over a substrate, comprising: providing a substrate, the substrate comprising a first surface having a first surface morphology and a second surface having a second surface morphology different from the first surface morphology on the same side of the wafer, wherein the first surface comprises a semiconductor material and the second surface comprises a dielectric material; intermixing trisilane and chlorine gas to thereby form an intermixed feed gas; introducing the intermixed feed gas to the substrate under chemical vapor deposition conditions, wherein the chemical vapor deposition conditions comprise a pressure in the range of about 0.25 Torr to about 100 Torr; and selectively depositing a Si-containing layer onto the first surface without depositing on the second surface by said introducing of the intermixed feed gas comprising trisilane and chlorine, wherein selectively depositing the Si-containing layer takes place at a deposition rate of greater than about 5 nm/min.