Patent ID: 9689072
Date: 2017-06-27
CPC Classifications: C23C,G02B

Claim:
1. A method of depositing a thin film, the method comprising: supplying a first source gas to a reactor during a first time period; supplying a purge gas to the reactor during a second time period; supplying a second source gas to the reactor during a third time period; supplying the purge gas to the reactor during a fourth time period; and supplying oxygen plasma in at least part of the first time period and the third time period, wherein the first source gas and the second source gas comprise polymer precursors, wherein the first source gas is one of hexamethylene diamine (C6H16N2) or ethylenediamine (C2H4(NH2)2) and the second source gas is one of 1,6-diisocyanatohexane (C8H12N2O2) or 1,4-phenylene diisocyanate (C6H2(CNO)2), wherein the first source gas and the second source gas are supplied at a temperature that is less than 100° C. or about 100° C., wherein the plasma is supplied at a substrate temperature that is less than 100° C. or about 100 C, wherein a polyurea film is deposited, and wherein applied plasma power is constantly proportional to the etch rate attributable to an oxygen radical.