METHOD OF MAKING WHITE LED PACKAGE STRUCTURE HAVING A SILICON SUBSTRATE
First Claim
1. A method of making a white LED package structure having a silicon substrate comprising:
- providing a silicon substrate, and performing an etching process to form a plurality of cup-structures on a top surface of the silicon substrate;
forming a reflective layer on the top surface of the silicon substrate;
forming a transparent insulating layer on the reflective layer;
forming a plurality of metal bumps on the transparent insulating layer respectively in each cup-structure, and forming a plurality of electrodes on the transparent insulating layer between the cup-structures;
respectively bonding a plurality of blue LEDs on each metal bump in each cup-structure, and electrically connecting respectively the blue LEDs to the electrodes, wherein the blue LEDs have various wavelengths; and
mixing a plurality of kinds of phosphor powders corresponding to the wavelengths of the blue LEDs and adding a sealing material, and then, performing a sealing process to form a phosphor structure on the cup-structures.
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Accused Products
Abstract
A method of making a white LED package structure having a silicon substrate comprises providing a silicon substrate and performing an etching process to form a plurality of cup-structures on a top surface of the silicon substrate. Next, a reflective layer on the top surface of the silicon substrate is formed, and a transparent insulating layer on the reflective layer is formed. Subsequently, a plurality of blue LEDs are respectively bonded in each cup-structure, wherein the blue LEDs have various wavelengths. Last, a plurality of kinds of phosphor powders corresponding to the wavelengths of the blue LEDs are mixed with each other and added to a sealing material, and a sealing process is performed to form a phosphor structure on the cup-structures.
21 Citations
28 Claims
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1. A method of making a white LED package structure having a silicon substrate comprising:
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providing a silicon substrate, and performing an etching process to form a plurality of cup-structures on a top surface of the silicon substrate; forming a reflective layer on the top surface of the silicon substrate; forming a transparent insulating layer on the reflective layer; forming a plurality of metal bumps on the transparent insulating layer respectively in each cup-structure, and forming a plurality of electrodes on the transparent insulating layer between the cup-structures; respectively bonding a plurality of blue LEDs on each metal bump in each cup-structure, and electrically connecting respectively the blue LEDs to the electrodes, wherein the blue LEDs have various wavelengths; and mixing a plurality of kinds of phosphor powders corresponding to the wavelengths of the blue LEDs and adding a sealing material, and then, performing a sealing process to form a phosphor structure on the cup-structures. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of making a white LED package structure having a silicon substrate comprising:
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providing a silicon substrate, and performing an etching process to form a plurality of cup-structures on a top surface of the silicon substrate; forming a reflective layer on the top surface of the silicon substrate; forming a transparent insulating layer on the reflective layer; forming a conductive layer on the transparent insulating layer; respectively bonding a plurality of blue LEDs on the conductive layer in each cup-structure, wherein the blue LEDs have various wavelengths; and mixing a plurality of kinds of phosphor powders corresponding to the wavelengths of the blue LEDs and adding a sealing material, and then performing a sealing process to form a phosphor structure on the cup-structures. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification