Molding device and molding method
AssigneeInternational Business Machines Corporation
InventorKazuhiro Umemoto
Life of this patent
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Abstract
A molding device and method utilizes a cavity including fast and second parts for molding an article having one or more convex portions and a gate for injecting mold resin into the cavity. The gate in turn includes one or more gate sides for injecting resin into a concave portion of one part and a gate base for injecting resin into a second of the parts in which no concave portions are located, both resin injections occurring simultaneously and substantially encapsulating a semiconductor element to form a molded article having a convex lens.
Claims14
A molding device, comprising:
- a cavity having first and second parts, at least one of said pacts including at least one concave portion therein for molding an article having at least one convex portion therein:
- and
- a gate for injecting mold resin into said first and second parts of said cavity, said gate including at least one gate side portion for directly 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 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.
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;
- injecting mold resin into said concave portion of said at least one of said parts for molding a portion of said article including at least one convex portion;
- and
- injecting mold resin into the other of said first and second parts molding another portion of the article having no convex portion, said injecting said mold resin into both of said first and second parts occurring substantially simultaneously.
Dependencies are inferred from the claim text.