Patents by Inventor Dug Kim
Dug Kim 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: 10546827Abstract: A flip chip includes a substrate, an electrode pad layer stacked over the substrate, a passivation layer stacked at both ends of the electrode pad layer, an under bump metallurgy (UBM) layer stacked over the electrode pad layer and the passivation layer, and a bump formed over the UBM layer. The width of an opening on which the passivation layer is not formed over the electrode pad layer is greater than the width of the bump. The flip chip can prevent a crack from being generated in the pad upon ultrasonic bonding.Type: GrantFiled: June 8, 2017Date of Patent: January 28, 2020Assignee: WISOL CO., LTD.Inventors: Young Seok Shim, Hyung Ju Kim, Joo Hun Park, Chang Dug Kim
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Publication number: 20190212276Abstract: According to an aspect of the present invention, there is provided a pattern structure inspection method including irradiating a wave from a wave source onto a sample including a pattern region in which a structure having a certain pattern is provided on a substrate, collecting speckle data generated due to multiple scattering of the wave in the pattern region, by using a data collector, and analyzing whether the structure of the pattern region has a defect, by comparing the collected speckle data to reference speckle data.Type: ApplicationFiled: June 1, 2017Publication date: July 11, 2019Applicants: THE WAVE TALK, INC., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Young Dug KIM, Jongchan PARK, YongKeun PARK
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Publication number: 20190157468Abstract: A bifacial solar cell module includes solar cells that are protected by front side packaging components and backside packaging components. The front side packaging components include a transparent top cover on a front portion of the solar cell module. The backside packaging components have a transparent portion that allows light coming from a back portion of the solar cell module to reach the solar cells, and a reflective portion that reflects light coming from the front portion of the solar cell module. The transparent and reflective portions may be integrated with a backsheet, e.g., by printing colored pigments on the backsheet. The reflective portion may also be on a reflective component that is separate from the backsheet. In that case, the reflective component may be placed over a clear backsheet before or after packaging.Type: ApplicationFiled: January 29, 2019Publication date: May 23, 2019Applicant: SunPower CorporationInventors: Sung Dug KIM, Gabriela BUNEA
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Patent number: 10243087Abstract: A bifacial solar cell module includes solar cells that are protected by front side packaging components and backside packaging components. The front side packaging components include a transparent top cover on a front portion of the solar cell module. The backside packaging components have a transparent portion that allows light coming from a back portion of the solar cell module to reach the solar cells, and a reflective portion that reflects light coming from the front portion of the solar cell module. The transparent and reflective portions may be integrated with a backsheet, e.g., by printing colored pigments on the backsheet. The reflective portion may also be on a reflective component that is separate from the backsheet. In that case, the reflective component may be placed over a clear backsheet before or after packaging.Type: GrantFiled: October 13, 2017Date of Patent: March 26, 2019Assignee: SunPower CorporationInventors: Sung Dug Kim, Gabriela Bunea
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Publication number: 20180372608Abstract: Provided is a sample property detecting apparatus including: a wave source configured to irradiate a wave towards a sample; a detector configured to detect a laser speckle that is generated when the wave is multiple-scattered by the sample, at every time point that is set in advance; and a controller configured to obtain a temporal correlation that is a variation in the detected laser speckle according to time, and to detect properties of the sample in real-time based on the temporal correlation, wherein the detector detects the laser speckle between the sample and the detector or from a region in the detector.Type: ApplicationFiled: November 17, 2016Publication date: December 27, 2018Inventors: YongKeun PARK, JongHee YOON, KyeoReh LEE, Young Dug KIM, Nam Kyun KIM
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Patent number: 9941435Abstract: A photovoltaic module is disclosed. The photovoltaic module has a first side directed toward the sun during normal operation and a second, lower side. The photovoltaic module comprises a perimeter frame and a photovoltaic laminate at least partially enclosed by and supported by the perimeter frame.Type: GrantFiled: July 1, 2011Date of Patent: April 10, 2018Assignee: SunPower CorporationInventors: Gabriela E. Bunea, Sung Dug Kim, David F. J. Kavulak
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Publication number: 20180062611Abstract: Disclosed is a radiofrequency (RF) module including a surface acoustic wave (SAW) device that includes a piezoelectric substrate, an interdigital transducer (IDT) electrode and an input/output electrode formed on one surface of the piezoelectric substrate, and a bump joined to the input/output electrode, a printed circuit board (PCB) that includes a terminal corresponding to the input/output electrode and on which the SAW device is mounted to join the bump to the terminal, a molding portion that covers the SAW device, and a dam portion that surrounds the IDT electrode, the input/output electrode, and the bump not to allow a molding material that forms the molding portion to penetrate a space in which the IDT electrode, the input/output electrode, and the bump are arranged.Type: ApplicationFiled: August 18, 2017Publication date: March 1, 2018Inventors: Jong Soo HA, Eun Tae PARK, Bong Soo KIM, Jung Hoon HAN, Chang Dug KIM
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Publication number: 20180053860Abstract: A bifacial solar cell module includes solar cells that are protected by front side packaging components and backside packaging components. The front side packaging components include a transparent top cover on a front portion of the solar cell module. The backside packaging components have a transparent portion that allows light coming from a back portion of the solar cell module to reach the solar cells, and a reflective portion that reflects light coming from the front portion of the solar cell module. The transparent and reflective portions may be integrated with a backsheet, e.g., by printing colored pigments on the backsheet. The reflective portion may also be on a reflective component that is separate from the backsheet. In that case, the reflective component may be placed over a clear backsheet before or after packaging.Type: ApplicationFiled: October 13, 2017Publication date: February 22, 2018Applicant: SunPower CorporationInventors: Sung Dug KIM, Gabriela BUNEA
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Publication number: 20170358546Abstract: A flip chip includes a substrate, an electrode pad layer stacked over the substrate, a passivation layer stacked at both ends of the electrode pad layer, an under bump metallurgy (UBM) layer stacked over the electrode pad layer and the passivation layer, and a bump formed over the UBM layer. The width of an opening on which the passivation layer is not formed over the electrode pad layer is greater than the width of the bump. The flip chip can prevent a crack from being generated in the pad upon ultrasonic bonding.Type: ApplicationFiled: June 8, 2017Publication date: December 14, 2017Inventors: Young Seok SHIM, Hyung Ju KIM, Joo Hun PARK, Chang Dug KIM
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Patent number: 9812590Abstract: A bifacial solar cell module includes solar cells that are protected by front side packaging components and backside packaging components. The front side packaging components include a transparent top cover on a front portion of the solar cell module. The backside packaging components have a transparent portion that allows light coming from a back portion of the solar cell module to reach the solar cells, and a reflective portion that reflects light coming from the front portion of the solar cell module. The transparent and reflective portions may be integrated with a backsheet, e.g., by printing colored pigments on the backsheet. The reflective portion may also be on a reflective component that is separate from the backsheet. In that case, the reflective component may be placed over a clear backsheet before or after packaging.Type: GrantFiled: October 25, 2012Date of Patent: November 7, 2017Assignee: SunPower CorporationInventors: Sung Dug Kim, Gabriela Bunea
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Publication number: 20170077336Abstract: A solar cell and a solar laminate are described. The solar cell can have a front side which faces the sun during normal operation and a back side opposite front side. The solar cell can include conductive contacts having substantially reflective outer regions disposed on the back side of the solar cell. The solar laminate can include a first encapsulant, the first encapsulant disposed on the back side of the solar cell and a second encapsulant. The solar laminate can include the solar cell laminated between the first and second encapsulant. The substantially reflective outer regions of the conductive contacts and the first encapsulant can be configured to scatter and/or diffuse light at the back side of the solar laminate for substantial light collection at the back side of the solar cell. Methods of fabricating the solar cell are also described herein.Type: ApplicationFiled: September 11, 2015Publication date: March 16, 2017Inventors: David D. Smith, Sung Dug Kim, Joseph Behnke, Hung-Ming Wang
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Publication number: 20160163901Abstract: Approaches for the foil-based metallization of solar cells and the resulting solar cells are described. For example, a method of fabricating a solar cell involves forming a plurality of alternating N-type and P-type semiconductor regions in or above a substrate. The method also involves forming a paste between adjacent ones of the alternating N-type and P-type semiconductor regions. The method also involves curing the paste to form non-conductive material regions in alignment with locations between the alternating N-type and P-type semiconductor regions. The method also involves adhering a metal foil to the alternating N-type and P-type semiconductor regions. The method also involves laser ablating through the metal foil in alignment with the locations between the alternating N-type and P-type semiconductor regions to isolate regions of remaining metal foil in alignment with the alternating N-type and P-type semiconductor regions.Type: ApplicationFiled: December 8, 2014Publication date: June 9, 2016Inventors: Benjamin Ian Hsia, Gabriel Harley, Taeseok Kim, Richard Hamilton Sewell, Sung Dug Kim
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Patent number: 9312425Abstract: A crack resistant solar cell module includes a protective package mounted on a frame. The protective package includes a polyolefin encapsulant that protectively encapsulates solar cells. The polyolefin has less than five weight percent of oxygen and nitrogen in the backbone or side chain. In other words, the combined weight percent of oxygen and nitrogen in any location in the molecular structure of the polyolefin is less than five. The polyolefin also has a complex viscosity less than 10,000 Pa second at 90° C. as measured by dynamic mechanical analysis (DMA) before any thermal processing of the polyolefin. The protective package includes a top cover, the encapsulant, and a backsheet. The solar cell module allows for shipping, installation, and maintenance with less risk of developing cracks on the surfaces of the solar cells.Type: GrantFiled: April 16, 2015Date of Patent: April 12, 2016Assignee: SunPower CorporationInventors: Sung Dug Kim, Nicholas Boitnott
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Patent number: 9211631Abstract: The present invention relates to a grinding wheel truing tool, its manufacturing method, and a truing apparatus, a method for manufacturing a grinding wheel and a wafer edge grinding apparatus using the same. The grinding wheel truing tool of the present invention compensates a groove of a fine-grinding wheel for fine-grinding a wafer edge, and includes a truer having an edge of the same angle as a slanted surface of the groove of the fine-grinding wheel and a cross-sectional shape corresponding to a cross-sectional shape of the groove. The present invention uses the truing tool to easily process the groove of the grinding wheel for fine-grinding the wafer edge.Type: GrantFiled: April 9, 2012Date of Patent: December 15, 2015Assignee: Siltron, Inc.Inventors: Yong-Dug Kim, Gye-Je Cho, Mun-Suk Yong, Hwan-Yun Jung, Kyung-Moo Lee, Dong-Hwan Hyun, Jae-Young Kim
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Publication number: 20150221813Abstract: A crack resistant solar cell module includes a protective package mounted on a frame. The protective package includes a polyolefin encapsulant that protectively encapsulates solar cells. The polyolefin has less than five weight percent of oxygen and nitrogen in the backbone or side chain. In other words, the combined weight percent of oxygen and nitrogen in any location in the molecular structure of the polyolefin is less than five. The polyolefin also has a complex viscosity less than 10,000 Pa second at 90° C. as measured by dynamic mechanical analysis (DMA) before any thermal processing of the polyolefin. The protective package includes a top cover, the encapsulant, and a backsheet. The solar cell module allows for shipping, installation, and maintenance with less risk of developing cracks on the surfaces of the solar cells.Type: ApplicationFiled: April 16, 2015Publication date: August 6, 2015Applicant: SunPower CorporationInventors: Sung Dug KIM, Nicholas BOITNOTT
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Patent number: 9098518Abstract: A resource sharing method for a resource sharing system for a plurality of edge peers that individually store a resource and a plurality of super peers that manage the plurality of edge peers or resource information including a name of the resource that includes at least one key word is provided. In the resource sharing system, the super peers distribute and manage resource information of the edge peers according to a key word. Therefore, if a resource is requested using part of a name of a resource desired by a certain edge peer, the super peer searches for resources including the resource desired by the edge peer. Therefore, a user of an edge peer may acquire a desired resource even using part of a name of a desired resource.Type: GrantFiled: February 26, 2009Date of Patent: August 4, 2015Assignees: Samsung Electronics Co., Ltd., Industry-Academic Cooperation Foundation Yonsei UniversityInventors: Jae-min Ahn, Ji-yon Han, Jeong-hwa Song, U-ram Yoon, Keon-il Jeong, Eo-hyung Lee, Kyung-lang Park, Shin-dug Kim
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Patent number: 9035172Abstract: A crack resistant solar cell module includes a protective package mounted on a frame. The protective package includes a polyolefin encapsulant that protectively encapsulates solar cells. The polyolefin has less than five weight percent of oxygen and nitrogen in the backbone or side chain. In other words, the combined weight percent of oxygen and nitrogen in any location in the molecular structure of the polyolefin is less than five. The polyolefin also has a complex viscosity less than 10,000 Pa second at 90° C. as measured by dynamic mechanical analysis (DMA) before any thermal processing of the polyolefin. The protective package includes a top cover, the encapsulant, and a backsheet. The solar cell module allows for shipping, installation, and maintenance with less risk of developing cracks on the surfaces of the solar cells.Type: GrantFiled: November 26, 2012Date of Patent: May 19, 2015Assignee: SunPower CorporationInventors: Sung Dug Kim, Nicholas Boitnott
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Publication number: 20150053248Abstract: A solar cell module includes serially connected solar cells. A solar cell includes a carrier that is attached to the backside of the solar cell. Solar cells are attached to a top cover, and vias are formed through the carriers of the solar cells. A solar cell is electrically connected to an adjacent solar cell in the solar cell module with metal connections in the vias.Type: ApplicationFiled: August 21, 2013Publication date: February 26, 2015Applicant: SunPower CorporationInventors: Seung RIM, Sung Dug KIM
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Patent number: 8716378Abstract: A thermoplastic polyester composition comprising, based on the total weight of the composition, a chlorine- and bromine-free combination of: from 40 to 60 wt % of a polyester; from 25 to 35 wt % of a reinforcing filler; from 2 to 8 wt % of a flame retardant synergist selected from the group consisting of melamine polyphosphate, melamine cyanurate, melamine pyrophosphate, melamine phosphate, and combinations thereof; from 5 to 15 wt % of a phosphinate salt flame retardant; from more than 0 to less than 5 wt % of an impact modifier component comprising a poly(ether-ester) elastomer and a (meth)acrylate impact modifier; from more than 0 to 5 wt % poly(tetrafluoroethylene) encapsulated by a styrene-acrylonitrile copolymer; from more than 0 to 2 wt % of a stabilizer; wherein the thermoplastic polyester composition contains less than 5 wt % of a polyetherimide.Type: GrantFiled: June 29, 2010Date of Patent: May 6, 2014Assignee: Sabic Innovative Plastics IP B.V.Inventors: Tianhua Ding, Rodney Fonseca, Sung Dug Kim, Chris van der Weele
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Patent number: 8686072Abstract: A thermoplastic polyester composition comprising, based on the total weight of the composition, a chlorine- and bromine-free combination of: from 40 to 60 wt % of a modified poly(1,4-butylene terephthalate); from 25 to 35 wt % of a reinforcing filler; from 2 to 8 wt % of a flame retardant synergist selected from the group consisting of melamine polyphosphate, melamine cyanurate, melamine pyrophosphate, melamine phosphate, and combinations thereof; from 5 to 15 wt % of a phosphinate salt flame retardant; from more than 0 to less than 5 wt % of an impact modifier component comprising a poly(ether-ester) elastomer and a (meth)acrylate impact modifier; from more than 0 to 5 wt % poly(tetrafluoroethylene) encapsulated by a styrene-acrylonitrile copolymer; from more than 0 to 2 wt % of a stabilizer; wherein the thermoplastic polyester composition contains less than 5 wt % of a polyetherimide.Type: GrantFiled: June 29, 2010Date of Patent: April 1, 2014Assignee: Sabic Innovative Plastics IP B.V.Inventors: Tianhua Ding, Rodney Fonseca, Sung Dug Kim, Chris van der Weele