Patents by Inventor Wei Liam Loo
Wei Liam Loo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20110140133Abstract: The light intensity emitted from a package is increased by adjusting a portion of the package encapsulant so that light impacting the side walls of the adjusted encapsulant portion will encounter total internal reflection (TIR) with the reflected light directed toward the top surface of the package. The adjusted portion of the package is positioned so that air can be used as the second (exterior) medium with the critical TIR angle being such that light emitted from a light source (such as from an LED die) will be directed primarily so as to escape the package from the top surface as opposed to being scattered internal to the package. In one embodiment, a lower portion of the encapsulant is surrounded by a casing to inwardly direct light from the light source that impacts the side of the encapsulant with an angle less than the critical TIR angle.Type: ApplicationFiled: December 15, 2010Publication date: June 16, 2011Applicant: Avago Technologies General IP (Singapore) Pte. Ltd.Inventors: Keat Chuan Ng, Wei Liam Loo, Chiau Jin Lee, Yean Chon Yaw
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Patent number: 7880381Abstract: A plurality of different frequency absorbing materials are placed between an LED and a surface so as to generate a non-monochromatic colors. In one embodiment, a light device is arranged with light sources, each of which emit light of a different color, and by surrounding the different colored light sources with a color changing media, each of which absorb light of different colors and by allowing the light sources to be individually calibrated as to power level, a variety of colors can be achieved.Type: GrantFiled: July 5, 2006Date of Patent: February 1, 2011Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.Inventors: Kheng Leng Tan, Janet Bee Yin Chua, Wei Liam Loo
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Patent number: 7547583Abstract: A packaged circuit and method for packaging an integrated circuit are disclosed. The packaged circuit has a lead frame, an integrated circuit chip, and an encapsulating layer. The lead frame has first and second sections, the first section including a lateral portion, a chip mounting area and a first extension. The integrated circuit chip is mounted in the chip mounting area and is in thermal contact with the chip mounting area. The encapsulating layer has top, bottom, and first and second side surfaces. The first extension is bent to provide a first heat path from the chip mounting area to the bottom surface. The heat path connects the heat chip mounting area to the bottom surface without passing through the first and second side surfaces and provides a heat path that has less thermal resistance than the heat path through either the lateral portion or the second section.Type: GrantFiled: March 7, 2008Date of Patent: June 16, 2009Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.Inventors: Kee Yean Ng, Hui Peng Koay, Chiau Jin Lee, Kheng Leng Tan, Wei Liam Loo, Keat Chuan Ng, Aizar Abdul Karim Norfidathul
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Publication number: 20090115926Abstract: Displays and methods of manufacturing displays are disclosed herein. An embodiment of a method of manufacturing a display comprises manufacturing a circuit board; forming a hole in a material; attaching the circuit board to the material, wherein the hole forms a cavity upon attachment of the circuit board to the material; and connecting a light source to the circuit board, the light source being located within the cavity.Type: ApplicationFiled: November 5, 2007Publication date: May 7, 2009Inventors: Seong Choon Lim, Eit Thian Yap, Wei Liam Loo
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Publication number: 20090117324Abstract: Electronic substrates having cavities located therein and methods of making the substrates are disclosed herein. An embodiment of a method of making the substrate comprises manufacturing a circuit board. An adhesive film is attached to the circuit board, wherein the adhesive film has a first side facing the circuit board and a second side located opposite the first side, and wherein the second side is adhesive. At least one cavity is formed in a material. The material is adhered to the second side of the adhesive film.Type: ApplicationFiled: November 5, 2007Publication date: May 7, 2009Inventors: Seong Choon Lim, Eit Thian Yap, Wei Liam Loo
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Publication number: 20080153190Abstract: A packaged circuit and method for packaging an integrated circuit are disclosed. The packaged circuit has a lead frame, an integrated circuit chip, and an encapsulating layer. The lead frame has first and second sections, the first section including a lateral portion, a chip mounting area and a first extension. The integrated circuit chip is mounted in the chip mounting area and is in thermal contact with the chip mounting area. The encapsulating layer has top, bottom, and first and second side surfaces. The first extension is bent to provide a first heat path from the chip mounting area to the bottom surface. The heat path connects the heat chip mounting area to the bottom surface without passing through the first and second side surfaces and provides a heat path that has less thermal resistance than the heat path through either the lateral portion or the second section.Type: ApplicationFiled: March 7, 2008Publication date: June 26, 2008Applicant: Avago Technologies General IP (Singapore) Pte. LtdInventors: Kee Yean Ng, Hui Peng Koay, Chiau Jin Lee, Kheng Leng Tan, Wei Liam Loo, Keat Chuan Ng, Aizar Abdul Karim Norfidathul
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Patent number: 7365407Abstract: A packaged circuit and method for packaging an integrated circuit are disclosed. The packaged circuit has a lead frame, an integrated circuit chip, and an encapsulating layer. The lead frame has first and second sections, the first section including a lateral portion, a chip mounting area and a first extension. The integrated circuit chip is mounted in the chip mounting area and is in thermal contact with the chip mounting area. The encapsulating layer has top, bottom, and first and second side surfaces. The first extension is bent to provide a first heat path from the chip mounting area to the bottom surface. The heat path connects the heat chip mounting area to the bottom surface without passing through the first and second side surfaces and provides a heat path that has less thermal resistance than the heat path through either the lateral portion or the second section.Type: GrantFiled: May 1, 2006Date of Patent: April 29, 2008Assignee: Avago Technologies General IP Pte LtdInventors: Kee Yean Ng, Hui Peng Koay, Chiau Jin Lee, Kheng Leng Tan, Wei Liam Loo, Keat Chuan Ng, Alzar Abdul Karim Norfidathul
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Publication number: 20080007172Abstract: A plurality of different frequency absorbing materials are placed between an LED and a surface so as to generate a non-monochromatic colors. In one embodiment, a light device is arranged with light sources, each of which emit light of a different color, and by surrounding the different colored light sources with a color changing media, each of which absorb light of different colors and by allowing the light sources to be individually calibrated as to power level, a variety of colors can be achieved.Type: ApplicationFiled: July 5, 2006Publication date: January 10, 2008Inventors: Kheng Leng Tan, Janet Bee Yin Chua, Wei Liam Loo
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Publication number: 20070284589Abstract: The light intensity emitted from a package is increased by adjusting a portion of the package encapsulant so that light impacting the side walls of the adjusted encapsulant portion will encounter total internal reflection (TIR) with the reflected light directed toward the top surface of the package. The adjusted portion of the package is positioned so that air can be used as the second (exterior) medium with the critical TIR angle being such that light emitted from a light source (such as from an LED die) will be directed primarily so as to escape the package from the top surface as opposed to being scattered internal to the package. In one embodiment, a lower portion of the encapsulant is surrounded by a casing to inwardly direct light from the light source that impacts the side of the encapsulant with an angle less than the critical TIR angle.Type: ApplicationFiled: June 8, 2006Publication date: December 13, 2007Inventors: Keat Chuan Ng, Wei Liam Loo, Chiau Jin Lee, Yean Chon Yaw
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Patent number: D576966Type: GrantFiled: June 26, 2006Date of Patent: September 16, 2008Assignee: Avago Technologies General IP (Singapore) Pte Ltd.Inventors: Keat Chuan Ng, Chiau Jin Lee, Kheng Leng Tan, Wei Liam Loo