Patent ID: 6921710
Filing Date: 2005-07-26
Classification: C23C,H01L

Abstract:
1. A method of forming a platinum conductive layer on a semiconductor device, the method comprising: (i) positioning the semiconductor device within a chemical vapor deposition chamber; (ii) introducing a platinum precursor gas into the chemical vapor deposition chamber for a first period of time so as to deposit a platinum conductive layer on the device; (iii) introducing a reactant into the chemical vapor deposition chamber for a second period of time, so that organic waste compounds contacting the platinum conductive layer are removed to thereby facilitate subsequent deposition of the platinum conductive layer; and (iv) continuing acts (ii) and (iii) until the conductive layer of a desired thickness is achieved; (v) monitoring the rate of deposition of the platinum layer; (vi) determining when the rate of deposition has decreased below a desired threshold; (vii) halting the supply of platinum precursor gas upon determining that the rate of deposition is less than the desired threshold; and (viii) providing the reactant after halting the supply of the platinum precursor gas.