Release film and process for producing light emitting diode
AssigneeAsahi Glass Company, Limited
InventorsYoshiaki Higuchi, Yasumasa Yukawa
Life of this patent
Estimating the term…
Abstract
Provided is a release film for producing a light emitting diode having desired concaves and convexes accurately transferred directly to the surface of a resin-sealed portion, at a low cost and in high yield, and a process for producing a light emitting diode. A release film 10 having a plurality of convex portions (convex stripes 12) and/or concave portions (grooves 14) formed on the surface is used as a release film to be placed in a cavity of a mold for forming a resin-sealed portion to seal a light emitting element of a light emitting diode.
Claims11
A release film which is to be placed in a cavity of a mold to seal a light emitting element of a light emitting diode with a transparent resin by means of a mold, wherein a plurality of convex portions and/or concave portions are formed on at least one surface.
A process for sealing a light emitting element, which is a process for sealing a light emitting element of a light emitting diode with a transparent resin by means of a mold, which comprises using a release film having a plurality of convex portions and/or concave portions formed on at least one surface, placing the above release film in a cavity of the mold so as to cover the inner surface of the cavity of the mold and so that the surface having the above convex portions and/or concave portions formed thereon faces a space in the cavity, further placing the above light emitting element in the above cavity, and then filling the above cavity with a transparent resin to seal the above light emitting element with the transparent resin.
A process for producing a light emitting diode, which comprises a step of placing a release film having a plurality of convex portions and/or concave portions formed on its surface so as to cover the inner surface of a cavity of a mold and so that the convex portions and/or concave portions formed on the above surface face a space in the cavity, a step of placing a substrate having a light emitting element connected thereto in the mold so that the light emitting element is positioned at a prescribed position in the cavity of the mold, a step of filling the space in the cavity with a resin to form a resin-sealed portion, a step of taking out the light emitting diode from the mold in such a state that the release film is attached to the resin-sealed portion, and a step of peeling the release film from the resin-sealed portion.
Dependencies are inferred from the claim text.