Molded package for light-emitting device and light-emitting device using the same

A technology of light-emitting devices and molded bodies, applied in the direction of electric solid devices, semiconductor devices, electrical components, etc., can solve the problems of aesthetic damage, etc., and achieve the effects of inhibiting intrusion, inhibiting the occurrence of burrs, and inhibiting the formation of burrs

Active Publication Date: 2017-12-19
NICHIA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, since the burr 80 has an irregular shape, the appearance of the concave portion 120 of the molded package 100 is impaired in a plan view ( Figure 17 )

Method used

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  • Molded package for light-emitting device and light-emitting device using the same
  • Molded package for light-emitting device and light-emitting device using the same
  • Molded package for light-emitting device and light-emitting device using the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0062] like Figure 1~3 As shown, a light-emitting device 50 of the present invention includes a molded package 10 , a light-emitting component 40 and an encapsulating resin 52 .

[0063] The so-called "light-emitting component 40" in this specification refers to a component including a light-emitting element, including a light-emitting element (such as an LED) itself, or a component composed of a light-emitting element and a submount (submount: submount). In this embodiment, the light emitting component 40 is constituted by a light emitting element.

[0064] As for the encapsulating resin 52 , it encapsulates the concave portion 12 of the resin molded body 11 containing the light emitting component 40 and protects the light emitting component 40 from the external environment.

[0065] The molded package 10 of the present invention includes a molded resin 11 and at least one lead (in this embodiment, two leads 20 and 30 ).

[0066] The resin molded body 11 has a recessed por...

Embodiment 1

[0142] As an example of the present invention, the molded package 10 and the molded package 100 for comparison were produced, and the presence or absence of the burr 80 was confirmed.

[0143] The manufacturing process of the molded package 10 of the present invention is as follows. First, wet etching is performed on the lead frame LF in which the first lead 20 and the second lead 30 are connected by the tie bar TB, and after forming the groove portion 24 at a predetermined position, the lead frame LF is clamped by the mold 90, and the resin is injected into the mold 90. Then, an assembly of the molded package 10 is formed. Next, the molded resin body 11 and the tie bar TB are cut by dicing along predetermined positions to separate the molded package 10 into individual pieces.

[0144] The molded package 100 for comparison is the same as the manufacturing process of the molded package 10 of the present invention except that the process of forming the groove portion 24 at a pr...

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PUM

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Abstract

The present invention provides a molded package capable of effectively suppressing the intrusion of flux into the recessed portion of the molded package when used in a light-emitting device, and capable of suppressing the occurrence of burrs in the molded resin body in the recessed portion. The package molding of the present invention includes: a resin molding having a concave portion for accommodating a light-emitting component on its upper surface; a bottom surface of the concave portion of the resin molding is partially exposed and extending to a side constituting the concave portion The lead wire is below the wall and is electrically connected to the light emitting part, and in the package molding body, the lead wire has a groove portion formed on the surface of the lead wire along at least a part of the side wall, the groove portion It has an inner upper end edge and an outer upper end edge, and is filled with the resin molded body so that the inner upper end edge is exposed on the bottom surface of the concave portion and the outer upper end edge is embedded in the resin molded body.

Description

technical field [0001] The present invention relates to a molded package for a light-emitting device and a light-emitting device using the same. Background technique [0002] In the frame insertion type resin package for light-emitting devices, it is known that by exposing the leads on the back surface of the resin molded body, the heat radiation from the light-emitting components placed in the concave portion of the package can be efficiently released to the mounting substrate through the leads. (eg, Patent Document 1). Also known is a package in which an anchoring groove is formed on a lead and a resin molded body is filled in the anchoring groove to increase the contact area between the lead wire and the resin molded body (for example, Patent Document 2). [0003] 【Prior technical literature】 [0004] 【Patent Literature】 [0005] [Patent Document 1] JP-A-2008-251937 [0006] [Patent Document 2] Japanese Patent Laid-Open No. 2011-146524 [0007] In the light-emitting ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L33/48H01L33/54H01L33/62
CPCH01L33/38H01L33/486H01L33/54H01L33/56H01L33/62H05K1/0313H01L2224/48091H01L2224/48247H01L2924/00014H01L2924/18301
Inventor 笹冈慎平中林拓也
Owner NICHIA CORP
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