Patent ID: 6455389
Filing Date: 2002-09-24
Classification: H01L

Abstract:
A method for preventing a by-product ion moving from a spacer, said method comprises:forming a gate on a substrate, said gate comprising a gate oxide layer; forming an offset liner on said gate and treating said offset liner with a first plasma treatment, wherein said offset liner is a tetraethylorthosilicate; proceeding with a reoxide treatment process to treat said offset liner; forming a liner on said offset liner and said substrate and treating said liner with a second plasma treatment; forming a first spacer layer on said liner by a atomic layer deposition process; forming a second spacer layer on said first spacer layer by a rapid thermal chemical vapor deposition process; and removing said partial first spacer layer, said partial second spacer layer, said partial liner, and said partial offset liner to form said spacer and to show a top of said gate.