Surface-mountable light-emitting diode light source and method of producing a light-emitting diode light source
First Claim
1. A surface-mountable light-emitting diode light source, comprising:
- a leadframe having a mounting side, a chip mounting region and an LED chip mounted on said leadframe;
a one-piece transparent plastic molded body encapsulating said leadframe and said LED chip;
leadframe connections for said LED chip, protruding on each of at least two side faces of said plastic body; and
each of said leadframe connections having an S-shaped bend, extending from said chip mounting region to said mounting side, within said plastic molded body of the light-emitting diode light source.
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Accused Products
Abstract
A surface-mountable light-emitting diode light source is described, in which the leadframe-bends toward the rear side of the package that are required for surface mounting lie within a transparent plastic molded body. Also described is a method of producing a mixed-light, preferably white-light source on the basis of a UV- or blue-emitting semiconductor LED. The LED is mounted on a leadframe, a transparent plastics molding composition is mixed with a conversion substance and possibly further fillers to form a molding composition. The leadframe is encapsulated, preferably by the injection-molding process, with the molding composition in such a way that the LED is surrounded on its light-exiting sides by the molding composition.
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Citations
31 Claims
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1. A surface-mountable light-emitting diode light source, comprising:
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a leadframe having a mounting side, a chip mounting region and an LED chip mounted on said leadframe;
a one-piece transparent plastic molded body encapsulating said leadframe and said LED chip;
leadframe connections for said LED chip, protruding on each of at least two side faces of said plastic body; and
each of said leadframe connections having an S-shaped bend, extending from said chip mounting region to said mounting side, within said plastic molded body of the light-emitting diode light source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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12. A method for producing a light-emitting diode light source, which comprises:
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mounting a LED chip in a chip mounting region on a leadframe;
connecting the LED chip in an electrically conducting manner to leadframe connections;
forming the leadframe connections with S-shaped bends; and
encapsulating the semiconductor LED and the S-shaped bends with a transparent plastics molding composition.
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13. A method of producing a white-light source with a semiconductor LED chip that emits light radiation in ultraviolet or blue spectral range, which comprises:
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mounting the LED chip on a leadframe;
mixing a transparent plastics molding composition with a conversion substance and optionally with further fillers to form a molding composition; and
encapsulating the leadframe with the molding composition in such a way that the LED is surrounded by the molding composition on light exiting sides thereof.
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Specification