Light-emitting diode and method of manufacturing the light-emitting diode
First Claim
1. A light-emitting diode comprising:
- a case having a concave inner surface;
a metal reflection mirror on the concave inner surface; and
a lead to one end of which a light-emitting element is attached, wherein a cavity of the concave inner surface of the case is filled with an accelerated curing epoxy resin, and the reflection mirror is sandwiched between the case and said accelerated curing epoxy resin to form a sandwich structure.
1 Assignment
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Accused Products
Abstract
A light-emitting diode has a case having a concave portion, a reflection mirror obtained by forming metal on the concave portion, and a lead to one end of which a light-emitting element is attached. A cavity including the concave portion of the case is filled with an accelerated curing epoxy resin. The epoxy resin is cured so that the epoxy resin, the reflection mirror and the case are formed into a sandwich structure. With such a structure, a light-emitting diode free of wrinkles and cracks on the reflection mirror is provided. Further, at the time of handling or transportation, the reflection mirror is not damaged. Moreover, during reflow soldering, at the time of solder-mounting the light-emitting diode to a printed circuit board, thermal deformation, such as wrinkling and cracking of the reflection mirror is completely prevented.
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Citations
14 Claims
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1. A light-emitting diode comprising:
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a case having a concave inner surface;
a metal reflection mirror on the concave inner surface; and
a lead to one end of which a light-emitting element is attached, wherein a cavity of the concave inner surface of the case is filled with an accelerated curing epoxy resin, and the reflection mirror is sandwiched between the case and said accelerated curing epoxy resin to form a sandwich structure. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A light-emitting diode manufacturing method including forming a case having a concave inner surface forming a reflection mirror by forming a metal on the concave inner surface, and forming a lead to one end of which a light-emitting element is attached, comprising steps of:
filling a cavity including the concave inner surface of the case with an accelerated curing epoxy resin; and
curing the epoxy resin to sandwich the reflection mirror between the accelerated curing epoxy resin and the case to form a sandwich structure.- View Dependent Claims (9, 10, 11, 12, 13, 14)
Specification