Source: http://www.google.com/patents/US7968894?dq=6,232,546
Timestamp: 2017-11-21 05:34:04
Document Index: 258027531

Matched Legal Cases: ['art 412', 'art 414', 'art 412', 'art 414', 'art 418', 'art 418', 'art 418', 'art 412', 'art 414', 'art 414', 'art 418', 'art 418', 'art 412', 'art 418', 'art 418', 'art 418']

Patent US7968894 - LED package frame and LED package having the same - Google Patents
An LED package frame includes an LED chip and a heat conductive member made of high heat conductivity material. The heat conductive member has a receiving part at a lateral portion, and is mounted with the LED chip. A lead-coating assembly configured to be inserted into the receiving part of the heat...http://www.google.com/patents/US7968894?utm_source=gb-gplus-sharePatent US7968894 - LED package frame and LED package having the same
Publication number US7968894 B2
Application number US 12/549,252
Also published as CN1822401A, CN100452455C, US7592631, US20060169999, US20090321773
Publication number 12549252, 549252, US 7968894 B2, US 7968894B2, US-B2-7968894, US7968894 B2, US7968894B2
Inventors Young Sam Park, Seung Ick Lee, Hun Joo Hahm, Hyung Suk Kim, Bum Jin Kim, Young June Jeong, Ho Sik Ahn, Jung Kyu Park
LED package frame and LED package having the same
US 7968894 B2
An LED package frame includes an LED chip and a heat conductive member made of high heat conductivity material. The heat conductive member has a receiving part at a lateral portion, and is mounted with the LED chip. A lead-coating assembly configured to be inserted into the receiving part of the heat conductive member, including a lead is inserted at one end into the receiving part of the heat conductive member, and electrically connected to the LED chip. An electrically insulating layer is placed in tight contact between the lead and the receiving part of the heat conductive member isolates the lead from the receiving part. With the lead inserted into the heat conductive member, it is possible to reduce size while maintaining high heat conductivity and stability.
7. The LED package according to claim 5, further comprising a layer of high reflectivity material formed on an inside surface of the outside wall.
The present application is a continuation of U.S. application Ser. No. 11/319,101, filed Dec. 28, 2005, which is based on and claims priority from Korea Application Number 2005-8773, filed Jan. 31, 2005, the disclosures of which are hereby incorporated by reference herein in their entirety.
An example of such a high power LED package has been disclosed in US Patent Application Publication No. 2004/0075100, in the title of “Leadframe and Housing for Radiation-Emitting Component, Radiation-Emitting Component, and a Method for Producing the Component.”
The present invention has been made to solve the foregoing problems of the prior art and it is therefore an object of the present invention to provide an LED package frame that has a lead inserted into a heat conductive member in order to reduce size while maintaining high heat conductivity and stability.
Now referring to FIGS. 31 and 32, each of the lead-coating assemblies 320 includes a lead 322 made of high electric conductivity metal and an isolating layer or insulation coating 324 coated on the lead 322 around the front end 322 a thereof. The lead 322 has a step-up configuration with the front end 322 a extended upward, and the insulation coating 324 is attached to lateral, bottom and front portions of the lead front end 322 a. In particular, a portion of the insulation coating 324 attached to the front portion of the lead front end 322 a will be referred to as a coating front end 324 a.
The lead 322 may be made of any one of Cu, Ni, Fe and alloys thereof. Alternatively, the lead 322 may be coated with any one of Ni, Ag, Au and alloys thereof. The insulation coating 324 is made of any one of glass, LCP, epoxy and so on, and preferably selected from any materials that is deformable at a high temperature.
A cylindrical column part 412 is formed in the center of the heat conductive member 410, and an annular periphery part 414 is formed around the column part 412. The periphery part 414 has an L-shaped first receiving part 418 a positioned in the right side of the drawing and a stopper 416 formed above the first receiving part 418 a.
The first receiving part 418 a is extended vertically along the column part 412 through the periphery part 414 to open a corresponding lower portion of the periphery part 414. A second receiving part 418 b is formed opposite to the first receiving part 418 a about the column part 412, in a lower portion of the periphery part. The first receiving part 418 a receives the lead-coating assembly 420 and the second receiving part 418 b receives only the lead 422.
The lead-coating assembly 420 includes a lead 422 made of high electric conductivity metal and an isolating layer or insulation coating 424 coated on the front end 422 a of the lead 422. The lead 422 has an L-shaped configuration bent upward toward the front end 422 a, and the insulation coating 424 is attached to the lead front end 422 a to surround it except for a top portion thereof. In particular, a portion of the insulation coating 424 attached to the front face of the lead front end 422 a will be referred to as a coating front end 424 a.
The lead 422 may be made of any one of Cu, Ni, Fe and alloys thereof, or coated with any one of Ni, Ag, Au and alloys thereof. The insulation coating 424 is made of any one of glass, LCP, epoxy and so on, and preferably selected from any materials that is deformable at a high temperature.
With the package frame 400 of this embodiment, it is possible to reduce the entire size remarkably since the lead-coating assembly 420 is coupled with the heat conductive member 410 through the insertion into the first receiving part 418 a.
Also, the insulation coating 424 and the coating front end 424 a function to prevent the lead front end 422 a of the lead-coating assembly 420 from directly contacting the heat conductive member 410. So, a plurality of package frames 400 of the invention can be mounted on a metal PCB without causing any short-circuit.
US5214495 Jul 18, 1991 May 25, 1993 Sharp Kabushiki Kaisha Photointerrupter and manufacturing method thereof
US5826980 * Aug 28, 1996 Oct 27, 1998 Matsushita Electric Industrial Co., Ltd. Non-contact thermometer
US7763478 * Aug 21, 2006 Jul 27, 2010 Cree, Inc. Methods of forming semiconductor light emitting device packages by liquid injection molding
US20020125494 Jan 31, 2002 Sep 12, 2002 Shinji Isokawa Semiconductor light emitting device and method of producing the same
US20040075100 Oct 10, 2003 Apr 22, 2004 Georg Bogner Leadframe and housing for radiation-emitting component, radiation-emitting component, and a method for producing the component
US20050068776 Dec 30, 2002 Mar 31, 2005 Shichao Ge Led and led lamp
US20050236638 Jun 27, 2005 Oct 27, 2005 Sanken Electric Co., Ltd. Semiconductor light emitting device
CN2540685Y Jun 3, 2002 Mar 19, 2003 葛世潮 High-efficient high power light-emitting diode
CN2617939Y Apr 11, 2003 May 26, 2004 陈政雄 Engine air catalytic devices
JP2003347588A Title not available
JP2004071771A Title not available
JP2005019662A Title not available
US8405181 * Mar 16, 2011 Mar 26, 2013 Intellectual Discovery Co., Ltd. High brightness and high contrast plastic leaded chip carrier LED
US20120235287 * Mar 16, 2011 Sep 20, 2012 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. High brightness and high contrast plastic leaded chip carrier led
U.S. Classification 257/81, 313/512, 257/E33.066, 438/26, 257/433, 257/79
International Classification H01L33/00, H01L31/12, H01L27/15, H01L33/60, H01L33/62
Cooperative Classification H01L2924/12041, H01L33/60, H01L33/642, H01L33/647, H01L2924/01079, H01L2224/48247, H01L33/62, H01L2224/48091
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:PARK, YOUNG SAM;LEE, SEUNG ICK;HAHM, HUN JOO;AND OTHERS;REEL/FRAME:023159/0173