Patent ID: 7879535
Filing Date: 2011-02-01
Classification: B41M,C23C,G03F,H05K

Abstract:
1. A pattern forming method comprising: providing a base material having, on a surface thereof, a polyimide including a polymerization initiating moiety in a polymer skeleton thereof; contacting a compound having one of the following groups (iii) and (iv) to the surface of the base material including the polyimide having the polymerization initiating moiety in the polymer skeleton thereof; photo-irradiating the polymerization initiating moiety included in the polyimide in a patterned shape to generate an active site in the patterned shape on the surface of the base material; and generating a graft polymer on the surface of the base material by graft polymerizing the compound from the active site to form one of the following patterns (III) and (IV) on the surface of the base material, wherein: the pattern (III) is obtained when the compound is a compound having the group (iii), and the pattern (IV) is obtained when the compound is a compound having the group (iv); the group (iii) is an ethylene addition-polymerizable unsaturated group and a hydrophilic group; the group (iv) is an ethylene addition-polymerizable unsaturated group and a hydrophilic group that interacts with either an electroless plating catalyst or a precursor thereof; the pattern (III) is a pattern including a region where the graft polymer is generated and a region where the graft polymer is not generated; the polyimide having the polymerization initiating moiety in the polymer skeleton thereof has a structure represented by the following Formula (IV): wherein R the pattern (IV) is a pattern including a region that interacts with either the electroless plating catalyst or the precursor thereof.