Method and apparatus for locally removing and/or modifying a polymer material on a surface
The invention relates to a process for locally removing and/or modifying a polymer material on a surface (WO) of a wafer (W), having the steps of: (a) aligning a mask (2) with respect to the surface (WO); (b) locally exposing the surface (WO) through the mask (2) by means of a VUV light source (3),...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention relates to a process for locally removing and/or modifying a polymer material on a surface (WO) of a wafer (W), having the steps of: (a) aligning a mask (2) with respect to the surface (WO); (b) locally exposing the surface (WO) through the mask (2) by means of a VUV light source (3), with simultaneous supply of a gas mixture containing at least oxygen (O2); (c) purging the surface (WO) with a gas mixture containing at least nitrogen (N2) and oxygen (O2), wherein the VUV light source (3) is switched off; (d) repeating at least steps (b) and (c) until the removing and/or modifying of the polymer material is complete. The invention also relates to an apparatus for locally removing and/or modifying a polymer material (P) on a surface (WO) of a wafer (W), having a mask (2) alignable in a defined manner with respect to the surface (WO), wherein the surface (WO) is exposable by means of a VUV light source (3) disposed above the mask, wherein a gas mixture containing at least nitrogen (N2) and/or oxyge |
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