Patent ID: 6319849
Filing Date: 2001-11-20
Classification: H01L

Abstract:
A process for manufacturing a semiconductor device comprising the steps of:forming, on at least a semiconductor device element and/or at least one lead layer on a semiconductor substrate, a lower layer of an organic-silane-based silicon oxide film, having a thickness of 0.3 to 0.6 .mu.m, by a chemical vapor deposition process in plasma using organic silane and oxygen as main component gases; andforming, above said organic-silane-based silicon oxide film, an upper layer of a silane-based silicon oxide film containing excessive silicon, having a thickness of 0.7 to 1.0 .mu.m, by a chemical vapor deposition process in plasma using silane and nitrous oxide as main component gases;wherein said lower layer of an organic-silane-based silicon oxide film and said upper layer of a silane-based silicon oxide film containing excessive silicon constitutes a protective insulating layer covering said semiconductor device element and/or said lead layer.