SEMICONDUCTOR LIGHT-EMITTING DEVICE AND MANUFACTURING METHOD
First Claim
1. A semiconductor light-emitting device comprising:
- a base board having a mounting surface and a conductor pattern formed on the mounting surface;
a semiconductor light-emitting chip having a bottom surface, a top surface and a side surface, and including chip electrodes adjacent the bottom surface, each of the chip electrodes electrically connected to a respective portion of the conductor pattern of the base board via solder bumps;
a wavelength converting layer having a bottom surface and a side surface, the wavelength converting layer including at least one phosphor, and located over the top surface of the semiconductor light-emitting chip so that the bottom surface of the wavelength converting layer covers the top surface of the semiconductor light-emitting chip;
a transparent material layer having a side surface disposed between the bottom surface of the wavelength converting layer and the side surface of the semiconductor light-emitting chip so that the side surface of the transparent material layer extends from the side surface of the semiconductor light-emitting chip toward the bottom surface of the wavelength converting layer;
a frame located adjacent the mounting surface of the base board so as to surround the semiconductor light-emitting chip and the transparent material layer; and
a reflective material layer having a side slant surface disposed at least between the frame and both the side surface of the wavelength converting layer and the side surface of the transparent material layer and between the bottom surface of the semiconductor light-emitting chip and the mounting surface of the base board while surrounding the solder bumps, wherein the side slant surface contacts with the side surface of the transparent material layer and extends from the side surface of the semiconductor light-emitting chip toward the bottom surface of the wavelength converting layer.
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Accused Products
Abstract
A semiconductor light-emitting device and a method for manufacturing the same can include a wavelength converting layer located over at least one semiconductor light-emitting chip in order to emit various colored lights including white light. The semiconductor light-emitting device can include a base board, a frame located on the base board, the chip mounted on the base board, a transparent material layer located between the wavelength converting layer and a side surface of the chip so as to extend toward the wavelength converting layer, and a reflective material layer disposed at least between the frame and both side surfaces of the wavelength converting layer and the transparent material layer. The semiconductor light-emitting device can be configured to improve light-emitting efficiency of the chip by using the reflective material layer as a reflector, and therefore can emit a wavelength-converted light having a high light-emitting efficiency from a small light-emitting surface.
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Citations
21 Claims
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1. A semiconductor light-emitting device comprising:
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a base board having a mounting surface and a conductor pattern formed on the mounting surface; a semiconductor light-emitting chip having a bottom surface, a top surface and a side surface, and including chip electrodes adjacent the bottom surface, each of the chip electrodes electrically connected to a respective portion of the conductor pattern of the base board via solder bumps; a wavelength converting layer having a bottom surface and a side surface, the wavelength converting layer including at least one phosphor, and located over the top surface of the semiconductor light-emitting chip so that the bottom surface of the wavelength converting layer covers the top surface of the semiconductor light-emitting chip; a transparent material layer having a side surface disposed between the bottom surface of the wavelength converting layer and the side surface of the semiconductor light-emitting chip so that the side surface of the transparent material layer extends from the side surface of the semiconductor light-emitting chip toward the bottom surface of the wavelength converting layer; a frame located adjacent the mounting surface of the base board so as to surround the semiconductor light-emitting chip and the transparent material layer; and a reflective material layer having a side slant surface disposed at least between the frame and both the side surface of the wavelength converting layer and the side surface of the transparent material layer and between the bottom surface of the semiconductor light-emitting chip and the mounting surface of the base board while surrounding the solder bumps, wherein the side slant surface contacts with the side surface of the transparent material layer and extends from the side surface of the semiconductor light-emitting chip toward the bottom surface of the wavelength converting layer. - View Dependent Claims (2, 3, 4, 5, 6, 15, 16, 19, 21)
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7. A semiconductor light-emitting device comprising:
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a base board having a mounting surface and a conductor pattern formed on the mounting surface; a plurality of semiconductor light-emitting chips each having a bottom surface, a top surface and an outer side surface, and each including chip electrodes adjacent the bottom surface, each of the chip electrodes electrically connected to a respective portion of the conductor pattern of the base board via solder bumps so that the plurality of semiconductor light-emitting chips is located adjacent each other; a wavelength converting layer having a bottom surface and a side surface, the wavelength converting layer including at least one phosphor, and located over the top surface of each of the semiconductor light-emitting chips so that the bottom surface of the wavelength converting layer covers the top surface of each of the semiconductor light-emitting chips; a transparent material layer having a side surface disposed between the bottom surface of the wavelength converting layer and the outer side surface of at least one of the semiconductor light-emitting chips so that the side surface of the transparent material layer extends from the outer side surface of the at least one of the semiconductor light-emitting chips toward the bottom surface of the wavelength converting layer; a frame located adjacent the mounting surface of the base board so as to surround the transparent material layer and the semiconductor light-emitting chips while facing the outer side surface of the at least one of the semiconductor light-emitting chips; and a reflective material layer having a side slant surface disposed at least between the frame and both the side surface of the wavelength converting layer and the side surface of the transparent material layer and between the bottom surface of at least one of the semiconductor light-emitting chips and the mounting surface of the base board while surrounding the solder bumps, wherein the side slant surface contacts with the side surface of the transparent material layer and extends from the outer side surface of the at least one of the semiconductor light-emitting chips toward the bottom surface of the wavelength converting layer. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 17, 18, 20)
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Specification