Patents Assigned to Cree Huizhou Opto Limited
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Patent number: 9711703Abstract: The present invention provides various embodiments for apparatuses, systems, and methods of manufacturing surface mountable devices. Some embodiments provide surface mount devices comprising a casing with a first and second surface and at least one side surface. A recess is formed in the first surface and extends into the casing. plurality of leads is partially encased by the casing, and one or more electronic devices are coupled with at least one of the plurality of leads and are at least partially exposed through the recess. A heat sink may be included for heat dissipation.Type: GrantFiled: February 12, 2008Date of Patent: July 18, 2017Assignee: CREE HUIZHOU OPTO LIMITEDInventors: Jian-Hui Xie, Chi Wing Leung, Xuan Wang
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Patent number: 9240395Abstract: The present invention is directed to LED packages and methods utilizing waterproof and UV resistant packages with improved structural integrity. In some embodiments, the improved structural integrity is provided by various features in the lead frame that the casing material encompasses to improve the adhesion between the lead frame and the casing for a stronger, waterproof package. Moreover, in some embodiments the improved structural integrity and waterproofing is further provided by improved adhesion between the encapsulant and the casing. Some embodiments also provide for improved wire bonds, with the length, thickness, and loop height of the wire bonds controlled and optimized for improved adhesion between the wire bonds and the encapsulant as well as improved reliability.Type: GrantFiled: November 30, 2010Date of Patent: January 19, 2016Assignee: CREE HUIZHOU OPTO LIMITEDInventors: Alex Chi Keung Chan, Charles Chak Hau Pang, Li Fei Hong
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Patent number: 8901583Abstract: The present invention is directed to LED packages and LED displays utilizing thin/low profile LED packages with improved structural integrity, emission characteristics, and customizable attributes. In some embodiments the improved structural integrity is provided by various features in the lead frame that cooperate with the casing for a stronger package. Moreover, in some embodiments the improved emission characteristics are provided by cavity features such as shape and depth, which provide for increased surface bonding area for multiple LED chips and increased viewing angle, respectively. Some embodiments also provide for gradated packages having customizable top portions for applications using smaller packages, with bottom portions comprising dimensions compatible with customary mechanical/electrical supports.Type: GrantFiled: April 12, 2010Date of Patent: December 2, 2014Assignee: Cree Huizhou Opto LimitedInventors: Alex Chi Keung Chan, Charles Chak Hau Pang, Ruan Fei Fei
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Patent number: 8367945Abstract: The present embodiments provide apparatuses, systems and methods of manufacturing surface mountable devices. Some embodiments provide surface mount devices that comprise a casing comprising a recess formed in the casing and extending into the casing, an insert secured with the casing and extending about the recess defining a portion of a surface of the recess with the insert comprising a reflective surface exposed along the recess, and a plurality of leads partially exposed through the recess.Type: GrantFiled: August 16, 2006Date of Patent: February 5, 2013Assignee: Cree Huizhou Opto LimitedInventors: Siu Cheong Cheng, Jian Hui Xie
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Patent number: 8368112Abstract: A multiple element emitter package is disclosed for increasing color fidelity and heat dissipation, improving current control, increasing rigidity of the package assembly. In one embodiment, the package comprises a surface-mount device a casing with a cavity extending into the interior of the casing from a first main surface is provided. A lead frame is at least partially encased by the casing, the lead frame comprising a plurality of electrically conductive parts carrying a linear array of light emitting devices (LEDs). Electrically conductive parts, separate from parts carrying the LEDs have a connection pad, wherein the LEDs are electrically coupled to a connection pad, such as by a wire bond. This lead frame arrangement allows for a respective electrical signal can be applied to each of the LEDs. The emitter package may be substantially waterproof, and an array of the emitter packages may be used in an LED display such as an indoor and/or outdoor LED screen.Type: GrantFiled: January 14, 2009Date of Patent: February 5, 2013Assignee: Cree Huizhou Opto LimitedInventors: Chi Keung Alex Chan, Yue Kwong Victor Lau, Xuan Wang, David Emerson
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Patent number: 8362605Abstract: Some embodiments provide surface mount devices that include a first electrode comprising a chip carrier part, a second electrode disposed proximate to the chip carrier part, and a casing encasing a portion of the first and second electrodes. The first electrode can extend from the chip carrier part toward a perimeter of the casing, and the second electrode can extend away from the chip carrier part and projects outside of the casing. In extending away from the chip carrier part the first electrode divides into a plurality of leads separated by an aperture that join into a single first joined lead portion with a first width before projecting outside of the casing and maintains the first width outside of the casing. The second electrode can attain a second width prior to projecting outside of the casing and maintains the second width outside the casing.Type: GrantFiled: November 9, 2009Date of Patent: January 29, 2013Assignee: Cree Huizhou Opto LimitedInventors: Jian Hui Xie, Siu Cheong Cheng
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Patent number: 8350370Abstract: The present invention is directed to LED packages and LED displays utilizing LED packages where the peak emission of the LED displays can exhibit improved emission characteristics. In some embodiments the improved characteristics include a wider horizontal emission angle for the LED packages according to the present invention, which results in improved emission characteristics for the LED display such as a wider far field pattern. This provides improved picture intensity and quality when viewing the display at different horizontal viewing angles. Different embodiments also provide for improved emission characteristics for LED packages emitting different colors of light when viewing at different vertical angles. In one embodiment the red and green LED packages can have emission patterns that are substantially the same at different vertical viewing angles within a range. This helps the colors of the display appear consistent at those angles.Type: GrantFiled: January 29, 2010Date of Patent: January 8, 2013Assignee: Cree Huizhou Opto LimitedInventors: Chi Keung Chan, Zhang Zhikuan, Yue Kwong Lau, Hao Liu, Xiang Fei, Meigui Luo, Juzuo Sheng
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Patent number: 8049230Abstract: In one embodiment, a surface-mount device comprises a casing having opposed, first and second main surfaces, side surfaces, and end surfaces. A lead frame partially encased by the casing comprises (1) an electrically conductive LED chip carrier part having a surface carrying a linear array of LEDs adapted to be energized to produce in combination a substantially full range of colors, each LED having a first electrical terminal and a second electrical terminal, the first terminal of each of the LEDs being electrically and thermally coupled to the chip carrying surface of the chip carrier part; and (2) electrically conductive connection parts separate from the chip carrier part, each of the connection parts having a connection pad, the second terminal of each of the LEDs being electrically coupled to the connection pad of a corresponding one of the connection parts with a single wire bond. The linear array of LEDs extends in a first direction, and each of the chip carrier part and connection parts has a lead.Type: GrantFiled: May 16, 2008Date of Patent: November 1, 2011Assignee: Cree Huizhou Opto LimitedInventors: Alex Chan, Xuan Wang