Patent ID: 6074804
Filing Date: 2000-06-13
Classification: G03F

Abstract:
A pattern formation method comprising: a first step of forming a resist film by coating a semiconductor substrate with a resist;a second step of conducting pattern exposure on said resist film;a third step of forming a silylated layer in an unexposed portion of said resist film not exposed in the pattern exposure by supplying a silylation agent including a silane compound represented by the following general formula (1) onto a surface of said resist film having been subjected to the pattern exposure: ##STR13## wherein R.sup.1, R.sup.2 and R.sup.3 are the same or different groups selected from the group consisting of a hydrogen atom, a substituted or non-substituted saturated hydrocarbon group having 1 through 6 carbon atoms, a substituted or non-substituted unsaturated hydrocarbon group having 1 through 6 carbon atoms, and an alicyclic saturated hydrocarbon group having 3 through 6 carbon atoms; and R.sup.4, R.sup.5 and R.sup.6 are the same or different groups selected from the group consisting of a hydrogen atom, OR.sup.7 (wherein R.sup.7 is a hydrogen atom, a substituted or non-substituted saturated hydrocarbon group having 1 through 6 carbon atoms, a substituted or non-substituted unsaturated hydrocarbon group having 1 through 6 carbon atoms, or an alicyclic saturated hydrocarbon group having 3 through 6 carbon atoms), a substituted or non-substituted saturated hydrocarbon group having 1 through 6 carbon atoms, a substituted or non-substituted unsaturated hydrocarbon group having 1 through 6 carbon atoms, and an alicyclic saturated hydrocarbon group having 3 through 6 carbon atoms; anda fourth step of forming a resist pattern out of said resist film by removing an exposed portion of said resist film exposed in the pattern exposure through etching of said resist film by using said silylated layer as a mask.