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US 6,561,782 B1Granted
Gate for molding device
AssigneeInternational Business Machines Corporation
InventorKazuhiro Umemoto
Life of this patent
Estimating the term…
Abstract
A molding device and method utilizes a cavity including first 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.
Claims8
A molding device, comprising:
- a cavity having first and second parts, at least one of said parts including at lease 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 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 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.
Dependencies are inferred from the claim text.