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Timestamp: 2014-03-09 02:02:27
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Matched Legal Cases: ['Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60']

Patent US7482640 - Electronic device contact structures - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsElectronic device contact structures are disclosed....http://www.google.com/patents/US7482640?utm_source=gb-gplus-sharePatent US7482640 - Electronic device contact structuresAdvanced Patent SearchPublication numberUS7482640 B2Publication typeGrantApplication numberUS 11/351,325Publication dateJan 27, 2009Filing dateFeb 9, 2006Priority dateApr 15, 2003Fee statusPaidAlso published asUS8217415, US20050051785, US20060192194, US20090230545, US20130126933Publication number11351325, 351325, US 7482640 B2, US 7482640B2, US-B2-7482640, US7482640 B2, US7482640B2InventorsAlexei A. Erchak, Elefterios Lidorikis, John W. GraffOriginal AssigneeLuminus Devices, Inc.Export CitationBiBTeX, EndNote, RefManPatent Citations (101), Non-Patent Citations (25), Referenced by (2), Classifications (24), Legal Events (3) External Links: USPTO, USPTO Assignment, EspacenetElectronic device contact structuresUS 7482640 B2Abstract Electronic device contact structures are disclosed.
CROSS REFERENCE TO RELATED APPLICATIONS This application is a continuation of U.S. patent application Ser. No. 10/871,877, filed Jun. 18, 2004, which claims priority under 35 U.S.C. �119 to U.S. Provisional Patent Application Ser. No. 60/553,894, filed Mar. 16, 2004, and entitled �Optical Display Systems and Methods�, and is a continuation-in-part of, and claims priority under 35 U.S.C. �120 to U.S. patent application Ser. No. 10/735,498, filed Dec. 12, 2003, and entitled �Light Emitting Systems�; U.S. patent application Ser. No. 10/794,244, filed Mar. 5, 2004, and entitled �Light Emitting Device Methods�; and U.S. patent application Ser. No. 10/794,452, filed Mar. 5, 2004, and entitled �Light Emitting Device Methods�, which claim priority under 35 U.S.C. �119 to U.S. Provisional Patent Application No. 60/462,889, filed Apr. 15, 2003; U.S. Provisional Patent Application No. 60/474,199, filed May 29, 2003; U.S. Provisional Patent Application No. 60/475,682, filed Jun. 4, 2003; U.S. Provisional Patent Application No. 60/503,653, filed Sep. 17, 2003; U.S. Provisional Patent Application No. 60/503,654, filed Sep. 17, 2003; U.S. Provisional Patent Application No. 60/503,661, filed Sep. 17, 2003; U.S. Provisional Patent Application No. 60/503,671, filed Sep. 17, 2003; U.S. Provisional Patent Application No. 60/503,672, filed Sep. 17, 2003; U.S. Provisional Patent Application No. 60/513,807, filed Oct. 23, 2003; and U.S. Provisional Patent Application No. 60/514,764, filed Oct. 27, 2003, the entire contents of each of which is hereby incorporated by reference.
F k → = c k → ⁢ ∑ G -> ⁢ ɛ G → ⁢ S k → - G → , ɛ G → = ∫ ɛ ⁡ ( r → ) ⁢ ⅇ - ⅈ ⁢ ⁢ G → ⁢ r → ⁢ ⅆ r → Since light propagating in the material generally satisfies the equation k2(in-plane)+k2 (normal)=∈(ω/c)2, the maximum G to be considered is fixed by the frequency (ω) emitted by the light-generating region and the dielectric constant of the light-generating region. As shown in FIG. 15, this defines a ring in reciprocal space which is often called the light line. The light line will be an annulus due to the finite bandwidth of the light-generating region but for sake of clarity we illustrate the light line of a monochromatic source. Similarly, light propagating within the encapsulant is bounded by a light line (the inner circle in FIG. 15). Therefore, the extraction efficiency is improved by increasing Fk for all directions k that lie within the encapsulant light-line which amounts to increasing the number of G points within the encapsulant light line and increasing the scattering strength ∈G for G points which lie within the material light line. This physical insight can be used when selecting patterns that can improve extraction efficiency.
J ⁡ ( x ) = J 1 ⁢ ⅇ - ∫ 0 x ⁢ ⁢ ⅆ x / L s ⁡ ( x ) + J 1 ⁢ ⅇ - ∫ L x ⁢ ⁢ ⅆ x / L s ⁡ ( L - x ) and
R = d K 0 ⁢ 1 S ′ ⁡ ( S ′ + 2 ⁢ d ⁢ ⁢ tan ⁢ ⁢ θ ) In the case of a rectangle, this resistivity can be calculated generating the results shown in FIG. 55. FIG. 55 shows a calculated ratio of Rth�rectangle/Rth�square (where Rth is the thermal resistance) for a system of large thickness and spreading angle of 45�. As the aspect ratio increases, the thermal resistance can drop. For example, if a square die system has a thermal resistance of 20� C./W and it is desired to dissipate 3 W of power, then the junction temperature (assuming an ambient temperature of 25� C.) can be 25+20*3=85� C. A rectangular die of the same area and same dissipated heat, however, will typically have a lower junction temperature. FIG. 56 shows a graph of junction temperature as a function of aspect ratio. It is believed that a lower junction temperature is desirable for reduced wavelength shift and higher device efficiency.
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Lett, vol. 82, No. 21, pp. 3779-3781 (2003).Referenced byCiting PatentFiling datePublication dateApplicantTitleUS8217415Jan 21, 2009Jul 10, 2012Luminus Devices, Inc.Electronic device contact structuresUS20120261711 *Apr 16, 2012Oct 18, 2012Luminus Devices, Inc.Electronic device contact structures* Cited by examinerClassifications U.S. Classification257/99, 257/734International ClassificationG02B6/122, H01L31/12, H01L33/20, H01L29/22, G02B6/42, H01L33/38Cooperative ClassificationH01L33/20, H01L2933/0083, H01L33/38, H01L23/48, G02B6/1225, H01L33/62, G02B6/4298, B82Y20/00, H01L2224/48091, H01L2224/49113, H01L2224/48227, H01L2924/01322European ClassificationG02B6/122P, H01L33/20, B82Y20/00, H01L33/38Legal EventsDateCodeEventDescriptionJul 27, 2012FPAYFee paymentYear of fee payment: 4Oct 18, 2006ASAssignmentOwner name: LUMINUS DEVICES, INC., MASSACHUSETTSFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ERCHAK, ALEXEI A.;LIDORIKIS, ELEFTERIOS;GRAFF, JOHN W.;REEL/FRAME:018406/0497;SIGNING DATES FROM 20041101 TO 20041102May 8, 2006ASAssignmentOwner name: LUMINUS DEVICES, INC., MASSACHUSETTSFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ERCHAK, ALEXEI A.;LIDORIKIS, ELEFTERIOS;GRAFF, JOHN W.;REEL/FRAME:017588/0641;SIGNING DATES FROM 20060417 TO 20060425RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google