METHOD OF PRODUCING OPTOELECTRONIC COMPONENTS AND SURFACE-MOUNTED OPTOELECTRONIC COMPONENT
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Accused Products
Abstract
A method of producing optoelectronic components includes A) providing a carrier and optoelectronic semiconductor chips including contact elements arranged on a contact side of the semiconductor chip; B) applying the semiconductor chips laterally next to one another on to the carrier, wherein the contact sides face the carrier during application; C) applying an electrically-conductive layer at least on to subregions of the sides of the semiconductor chip not covered by the carrier; D) applying a protective layer at least on to subregions of side surfaces of the semiconductor chips running transversely to the contact surface; E) electrophoretically depositing a converter layer on to the electrically-conductive layer, wherein the converter layer is configured to convert at least part of radiation emitted by the semiconductor chip into radiation of a different wavelength range; and F) removing the electrically-conductive layer from regions between the converter layer and the semiconductor chips.
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Citations
31 Claims
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1-15. -15. (canceled)
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16. A method of producing optoelectronic components comprising:
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A) providing a carrier and a multitude of optoelectronic semiconductor chips, wherein each semiconductor chip comprises contact elements for external electrical contacting arranged on a contact side of the semiconductor chip; B) applying the semiconductor chips laterally next to one another on to the carrier, wherein the contact sides are made to face the carrier during application; C) applying an electrically-conductive layer at least on to subregions of the sides of the semiconductor chip not covered by the carrier, wherein the electrically-conductive layer is of contiguous design; D) applying a protective layer at least on to subregions of side surfaces of the semiconductor chips running transversely to the contact surface; E) electrophoretically depositing a converter layer on to the electrically-conductive layer, wherein the converter layer is configured to convert at least part of radiation emitted by the semiconductor chip into radiation of a different wavelength range during the intended operation; and F) removing the electrically-conductive layer from regions between the converter layer and the semiconductor chips. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A surface-mounted optoelectronic component comprising:
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an optoelectronic semiconductor chip with exposed contact elements for external electrical contacting of the component, wherein the contact elements are arranged on a joint contact side of the semiconductor chip, a converter layer formed contiguously, continuously and without interruptions and covers a radiation exit surface opposite the contact side by at least 90%, an encapsulation layer applied on to the converter layer and completely covers and encloses the converter layer, and an electrically-conductive layer on side surfaces of the semiconductor chip extending transversely to the contact side, wherein the converter layer is configured to convert at least part of a radiation emitted by the semiconductor chip into radiation of a different wavelength range during the intended operation of the component, the converter layer has a homogenous layer thickness along its entire extent on the semiconductor chip with maximum thickness deviations of 5% from an average value of the layer thickness, the layer thickness of the converter layer is at most 70 μ
m,the converter layer is a powder of converter particles, which is held on to the semiconductor chip by the encapsulation layer, and the electrically-conductive layer has a layer thickness of 100 nm to 500 nm, covers all side surfaces of the semiconductor chip in each case by at least 90% and has a reflectivity of at least 80% to the radiation emitted by the semiconductor chip. - View Dependent Claims (29, 30)
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31. A method of producing optoelectronic components comprising:
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A) providing a carrier and a multitude of optoelectronic semiconductor chips, wherein each semiconductor chip comprises contact elements for external electrical contacting arranged on a contact side of the semiconductor chip; B) applying the semiconductor chips laterally next to one another on to the carrier, wherein the contact sides are made to face the carrier during application; C) applying an electrically-conductive layer at least on to subregions of the sides of the semiconductor chip not covered by the carrier, wherein the electrically-conductive layer is of contiguous design; D) applying a protective layer at least on to subregions of side surfaces of the semiconductor chips running transversely to the contact surface; E) electrophoretically depositing a converter layer on to the electrically-conductive layer, wherein the converter layer is configured to convert at least part of a radiation emitted by the semiconductor chip into radiation of a different wavelength range during the intended operation; and F) removing the electrically-conductive layer from regions between the converter layer and the semiconductor chips, wherein in step F), the protective layer prevents the electrically-conductive layer from being removed in regions covered by the protective layer, in step E), the regions of the electrically-conductive layer covered by the protective layer remain free of the converter layer, and the electrically-conductive layer is reflective for light emitted by the semiconductor chips during operation.
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Specification