Patents by Inventor Tsen-Kuei Wang
Tsen-Kuei Wang 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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Patent number: 10217904Abstract: This disclosure discloses a light-emitting device. The light-emitting device has a first outermost sidewall and includes a light-emitting diode and an electrode. The light-emitting diode has a pad and a side surface. The electrode has a segment formed on the pad to extend beyond the side surface, and a first protrusion extending from the segment to the first outermost sidewall.Type: GrantFiled: February 2, 2016Date of Patent: February 26, 2019Assignee: EPISTAR CORPORATIONInventors: Hung-Hsuan Chen, Chih-Peng Ni, Jui-Hsien Chang, Hsin-Yu Lee, Tsen-Kuei Wang, Chen-Yen Fan
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Patent number: 10186647Abstract: A light-emitting device is provided. The light-emitting device comprises: a semiconductor system comprising a light-emitting semiconductor stack; an electrode comprising a surface next to the semiconductor system; a contact material in the semiconductor system and in the electrode, wherein the contact material has a largest intensity at a first depth position in the electrode, and the contact material is selected from the group consisting of Be, Se, Sn, Zn, and combinations thereof; and a base material different from the base material and in the electrode.Type: GrantFiled: March 15, 2017Date of Patent: January 22, 2019Assignee: EPISTAR CORPORATIONInventors: Tsen-Kuei Wang, Ming-Yung Jow, Bor-Cherng Chen, Tsung-Ta Yu
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Publication number: 20170186929Abstract: A light-emitting device is provided. The light-emitting device comprises: a semiconductor system comprising a light-emitting semiconductor stack; an electrode comprising a surface next to the semiconductor system; a contact material in the semiconductor system and in the electrode, wherein the contact material has a largest intensity at a first depth position in the electrode, and the contact material is selected from the group consisting of Be, Se, Sn, Zn, and combinations thereof; and a base material different from the base material and in the electrode.Type: ApplicationFiled: March 15, 2017Publication date: June 29, 2017Inventors: Tsen-Kuei WANG, Ming-Yung JOW, Bor-Cherng CHEN, Tsung-Ta YU
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Patent number: 9634195Abstract: A light-emitting device is provided. The light-emitting device comprises: a semiconductor system comprising a light-emitting semiconductor stack; and an electrode comprising a surface next to the semiconductor system and comprising a base material and a contact material different from the base material, wherein the contact material diffuses into the semiconductor system; wherein the contact material has a largest intensity at a first depth position from a SIMS spectrum, and a distance between the first depth position and the surface is not less than 500 nm.Type: GrantFiled: February 4, 2016Date of Patent: April 25, 2017Assignee: EPISTAR CORPORATIONInventors: Tsen-Kuei Wang, Ming-Yung Jow, Bor-Cherng Chen, Tsung-Ta Yu
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Publication number: 20160225955Abstract: This disclosure discloses a light-emitting device. The light-emitting device has a first outermost sidewall and includes a light-emitting diode and an electrode. The light-emitting diode has a pad and a side surface. The electrode has a segment formed on the pad to extend beyond the side surface, and a first protrusion extending from the segment to the first outermost sidewall.Type: ApplicationFiled: February 2, 2016Publication date: August 4, 2016Inventors: Hung-Hsuan CHEN, Chih-Peng NI, Jui-Hsien CHANG, Hsin-Yu LEE, Tsen-Kuei WANG, Chen-Yen FAN
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Publication number: 20160155903Abstract: A light-emitting device is provided. The light-emitting device comprises: a semiconductor system comprising a light-emitting semiconductor stack; and an electrode comprising a surface next to the semiconductor system and comprising a base material and a contact material different from the base material, wherein the contact material diffuses into the semiconductor system; wherein the contact material has a largest intensity at a first depth position from a SIMS spectrum, and a distance between the first depth position and the surface is not less than 500 nm.Type: ApplicationFiled: February 4, 2016Publication date: June 2, 2016Inventors: Tsen-Kuei WANG, Ming-Yung JOW, Bor-Cherng CHEN, Tsung-Ta YU
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Patent number: 9287459Abstract: A light-emitting device comprises: a light-emitting semiconductor stack; and an electrode on the light-emitting semiconductor stack comprising a base material and a contact material different from the base material and capable of forming an ohmic contact with semiconductor material; wherein the contact material is distributed over a part of the light-emitting device and has a largest concentration in the electrode.Type: GrantFiled: February 14, 2014Date of Patent: March 15, 2016Assignee: EPISTAR CORPORATIONInventors: Tsen-Kuei Wang, Ming-Yung Jow, Bor-Cherng Chen, Tsung-Ta Yu
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Publication number: 20150236204Abstract: A light-emitting device comprises: a light-emitting semiconductor stack; and an electrode on the light-emitting semiconductor stack comprising a base material and a contact material different from the base material and capable of forming an ohmic contact with semiconductor material; wherein the contact material is distributed over a part of the light-emitting device and has a largest concentration in the electrode.Type: ApplicationFiled: February 14, 2014Publication date: August 20, 2015Applicant: Epistar CorporationInventors: Tsen-Kuei WANG, Ming-Yung JOW, Bor-Cherng CHEN, Tsung-Ta YU
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Patent number: 8829486Abstract: A light-emitting device comprises a substrate, and a light-emitting structure formed on the substrate. The light-emitting structure comprises a first active layer emitting the light with a first wavelength, and a second active layer emitting the light with a second wavelength. The light-emitting structure is formed by the first active layer and the second active layer stacked alternately.Type: GrantFiled: December 7, 2011Date of Patent: September 9, 2014Assignee: Epistar CorporationInventors: Rong-Ren Lee, Shih-Chang Lee, Chien-Fu Huang, Tsen-Kuei Wang
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Patent number: 8735197Abstract: This invention discloses a wafer-scaled light-emitting structure comprising a supportive substrate; an anti-deforming layer; a bonding layer; and a light-emitting stacked layer, wherein the anti-deforming layer reduces or removes the deformation like warp caused by thinning of the substrate.Type: GrantFiled: October 29, 2012Date of Patent: May 27, 2014Assignee: Epistar CorporationInventors: Chin-San Tao, Tzu-Chien Hsu, Tsen-Kuei Wang
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Patent number: 8299481Abstract: This invention discloses a wafer-scaled light-emitting structure comprising a supportive substrate; an anti-deforming layer; a bonding layer; and a light-emitting stacked layer, wherein the anti-deforming layer reduces or removes the deformation like warp caused by thinning of the substrate.Type: GrantFiled: July 31, 2009Date of Patent: October 30, 2012Assignee: Epistar CorporationInventors: Chin-San Tao, Tzu-Chien Hsu, Tsen-Kuei Wang
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Publication number: 20120138892Abstract: A light-emitting device comprises a substrate, and a light-emitting structure formed on the substrate. The light-emitting structure comprises a first active layer emitting the light with a first wavelength, and a second active layer emitting the light with a second wavelength. The light-emitting structure is formed by the first active layer and the second active layer stacked alternately.Type: ApplicationFiled: December 7, 2011Publication date: June 7, 2012Inventors: Rong-Ren Lee, Shih-Chang Lee, Chien-Fu Huang, Tsen-Kuei Wang
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Publication number: 20100025713Abstract: This invention discloses a wafer-scaled light-emitting structure comprising a supportive substrate; an anti-deforming layer; a bonding layer; and a light-emitting stacked layer, wherein the anti-deforming layer reduces or removes the deformation like warp caused by thinning of the substrate.Type: ApplicationFiled: July 31, 2009Publication date: February 4, 2010Inventors: Chin-San TAO, Tzu-Chien Hsu, Tsen-Kuei Wang