Patent ID: 6818169
Filing Date: 2004-11-16
Classification: B29C,H01L

Abstract:
A molding method for molding an article having at least one convex portion comprising the steps of:providing a molding device having first and second parts defining a cavity, at least one of said parts including a concave portion; a gate configured for injecting mold resin into said first and second parts of said cavity, said gate including at least one discrete gate side portion for directing said mold resin into said part of said cavity having said at least one concave portion for molding a portion of said article having said at least one convex portion, and at least one discrete plate-like gate base for injecting said mold resin in a substantially flat sheet state into said other part of said cavity for molding the other portions of said article; injecting mold resin into said concave portion of said at least one of said parts for molding a portion of acid article including at least one convex portion from said at least one side gate portion; and injecting mold resin into the other of said first and second parts molding another portion of the article having no convex portion from said at least one plate-like gate base, said injecting said mold resin into both of said first and second parts occurring substantially simultaneously.