Patents by Inventor Kai-Chih Wang
Kai-Chih 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).
-
Publication number: 20250076379Abstract: An eye-diagram index analytic method includes: calculating a transfer function of multiple coupled lines; converting the transfer function into a pulse response; calculating an eye-diagram index according to the pulse response; and correcting the eye-diagram index according to peak distortion analysis.Type: ApplicationFiled: March 24, 2024Publication date: March 6, 2025Applicant: Novatek Microelectronics Corp.Inventors: Kai Li, Chiu-Chih Chou, Ruey-Beei Wu, Hsin-Chan Hsieh, Ren-Yu Wang, Hao-Hsiang Chuang, Wei-Da Guo
-
Patent number: 8361898Abstract: A bonding pad structure for an optoelectronic device. The bonding pad structure includes a carrier substrate having a bonding pad region and an optoelectronic device region. An insulating layer is disposed on the carrier substrate, having an opening corresponding to the bonding pad region. A bonding pad is embedded in the insulating layer under the opening to expose the top surface thereof. A device substrate is disposed on the insulating layer corresponding to the optoelectronic device region. A cap layer covers the device substrate and the insulating layer excluding the opening. A conductive buffer layer is disposed in the opening to directly contact the bonding pad. The invention also discloses a method for fabricating the same.Type: GrantFiled: January 28, 2010Date of Patent: January 29, 2013Assignee: VisEra Technologies Company LimitedInventors: Kai-Chih Wang, Fang-Chang Liu
-
Patent number: 7833810Abstract: Isolation structure for CMOS image sensor device chip scale packages and fabrication methods thereof. A CMOS image sensor chip scale package includes a transparent substrate configured as a support structure for the package. The transparent substrate includes a first cutting edge and a second cutting edge. A CMOS image sensor die with a die circuitry is mounted on the transparent substrate. An encapsulant is disposed on the substrate encapsulating the CMOS image sensor die. A connection extends from the die circuitry to a plurality of terminal contacts for the package on the encapsulant, wherein the connection is exposed by the first cutting edge. An isolation structure is disposed on the first cutting edge passivating the exposed connection and co-planed with the second cutting edge.Type: GrantFiled: June 29, 2009Date of Patent: November 16, 2010Assignee: VisEra Technologies Company LimitedInventors: Tzu-Han Lin, Tzy-Ying Lin, Fang-Chang Liu, Kai-Chih Wang
-
Patent number: 7824964Abstract: A package structure for an optoelectronic device. The package structure comprises a device chip reversely disposed on a first substrate, which comprises a second substrate and a first dielectric layer between the first and second substrates. The first dielectric layer comprises a pad formed in a corner of the first dielectric layer non-overlapping the second substrate, such that the surface and sidewall of the pad are exposed. A metal layer is formed directly on the exposed surface of the pad and covers the second substrate. A protective layer covers the metal layer, having an opening to expose a portion of the metal layer on the second substrate. A solder ball is disposed in the opening, electrically connecting to the metal layer. The invention also discloses a method for fabricating the same.Type: GrantFiled: March 27, 2009Date of Patent: November 2, 2010Assignee: VisEra Technologies Company LimitedInventors: Kai-Chih Wang, Fang-Chang Liu
-
Publication number: 20100127408Abstract: A bonding pad structure for an optoelectronic device. The bonding pad structure comprises a carrier substrate having a bonding pad region and an optoelectronic device region. An insulating layer is disposed on the carrier substrate, having an opening corresponding to the bonding pad region. A bonding pad is embedded in the insulating layer under the opening to expose the top surface thereof. A device substrate is disposed on the insulating layer corresponding to the optoelectronic device region. A cap layer covers the device substrate and the insulating layer excluding the opening. A conductive buffer layer is disposed in the opening to directly contact the bonding pad. The invention also discloses a method for fabricating the same.Type: ApplicationFiled: January 28, 2010Publication date: May 27, 2010Inventors: Kai-Chih WANG, Fang-Chang Liu
-
Patent number: 7679187Abstract: A bonding pad structure for an optoelectronic device. The bonding pad structure comprises a carrier substrate having a bonding pad region and an optoelectronic device region. An insulating layer is disposed on the carrier substrate, having an opening corresponding to the bonding pad region. A bonding pad is embedded in the insulating layer under the opening to expose the top surface thereof. A device substrate is disposed on the insulating layer corresponding to the optoelectronic device region. A cap layer covers the device substrate and the insulating layer excluding the opening. A conductive buffer layer is disposed in the opening to directly contact the bonding pad. The invention also discloses a method for fabricating the same.Type: GrantFiled: January 11, 2007Date of Patent: March 16, 2010Assignee: VisEra Technologies Company LimitedInventors: Kai-Chih Wang, Fang-Chang Liu
-
Publication number: 20090263927Abstract: Isolation structure for CMOS image sensor device chip scale packages and fabrication methods thereof. A CMOS image sensor chip scale package includes a transparent substrate configured as a support structure for the package. The transparent substrate includes a first cutting edge and a second cutting edge. A CMOS image sensor die with a die circuitry is mounted on the transparent substrate. An encapsulant is disposed on the substrate encapsulating the CMOS image sensor die. A connection extends from the die circuitry to a plurality of terminal contacts for the package on the encapsulant, wherein the connection is exposed by the first cutting edge. An isolation structure is disposed on the first cutting edge passivating the exposed connection and co-planed with the second cutting edge.Type: ApplicationFiled: June 29, 2009Publication date: October 22, 2009Applicant: VISERA TECHNOLOGIES COMPANY LIMITEDInventors: Tzu-Han LIN, Tzy-Ying LIN, Fang-Chang LIU, Kai-Chih WANG
-
Patent number: 7569409Abstract: Isolation structure for CMOS image sensor device chip scale packages and fabrication methods thereof. A CMOS image sensor chip scale package includes a transparent substrate configured as a support structure for the package. The transparent substrate includes a first cutting edge and a second cutting edge. A CMOS image sensor die with a die circuitry is mounted on the transparent substrate. An encapsulant is disposed on the substrate encapsulating the CMOS image sensor die. A connection extends from the die circuitry to a plurality of terminal contacts for the package on the encapsulant, wherein the connection is exposed by the first cutting edge. An isolation structure is disposed on the first cutting edge passivating the exposed connection and co-planed with the second cutting edge.Type: GrantFiled: January 4, 2007Date of Patent: August 4, 2009Assignee: VisEra Technologies Company LimitedInventors: Tzu-Han Lin, Tzy-Ying Lin, Fang-Chang Liu, Kai-Chih Wang
-
Patent number: 7566944Abstract: A package structure for an optoelectronic device. The package structure comprises a device chip reversely disposed on a first substrate, which comprises a second substrate and a first dielectric layer between the first and second substrates. The first dielectric layer comprises a pad formed in a corner of the first dielectric layer non-overlapping the second substrate, such that the surface and sidewall of the pad are exposed. A metal layer is formed directly on the exposed surface of the pad and covers the second substrate. A protective layer covers the metal layer, having an opening to expose a portion of the metal layer on the second substrate. A solder ball is disposed in the opening, electrically connecting to the metal layer. The invention also discloses a method for fabricating the same.Type: GrantFiled: January 11, 2007Date of Patent: July 28, 2009Assignee: VisEra Technologies Company LimitedInventors: Kai-Chih Wang, Fang-Chang Liu
-
Publication number: 20090186449Abstract: A package structure for an optoelectronic device. The package structure comprises a device chip reversely disposed on a first substrate, which comprises a second substrate and a first dielectric layer between the first and second substrates. The first dielectric layer comprises a pad formed in a corner of the first dielectric layer non-overlapping the second substrate, such that the surface and sidewall of the pad are exposed. A metal layer is formed directly on the exposed surface of the pad and covers the second substrate. A protective layer covers the metal layer, having an opening to expose a portion of the metal layer on the second substrate. A solder ball is disposed in the opening, electrically connecting to the metal layer. The invention also discloses a method for fabricating the same.Type: ApplicationFiled: March 27, 2009Publication date: July 23, 2009Inventors: Kai-Chih WANG, Fang-Chang Liu
-
Publication number: 20090026562Abstract: A package structure for an optoelectronic device. The package structure comprises a device chip interposed between a lower transparent substrate and an upper transparent substrate. The device chip comprises a semiconductor substrate comprising a device region surrounded by a pad region, in which the pad region comprises a plurality of notches along the edges of the semiconductor substrate. A dielectric layer is between the semiconductor substrate and the upper transparent substrate, comprising a plurality of pads formed therein and substantially aligned with the plurality of notches, respectively. A plurality of metal lines is disposed under a bottom surface of the lower transparent substrate. A plurality of solder balls disposed under the plurality of metal lines, respectively.Type: ApplicationFiled: July 26, 2007Publication date: January 29, 2009Inventors: Kai-Chih Wang, Fang-Chang Liu, I-Pang Chou
-
Publication number: 20080169117Abstract: A bonding pad structure for an optoelectronic device. The bonding pad structure comprises a carrier substrate having a bonding pad region and an optoelectronic device region. An insulating layer is disposed on the carrier substrate, having an opening corresponding to the bonding pad region. A bonding pad is embedded in the insulating layer under the opening to expose the top surface thereof. A device substrate is disposed on the insulating layer corresponding to the optoelectronic device region. A cap layer covers the device substrate and the insulating layer excluding the opening. A conductive buffer layer is disposed in the opening to directly contact the bonding pad. The invention also discloses a method for fabricating the same.Type: ApplicationFiled: January 11, 2007Publication date: July 17, 2008Inventors: Kai-Chih Wang, Fang-Chang Liu
-
Publication number: 20080169477Abstract: A package structure for an optoelectronic device. The package structure comprises a device chip reversely disposed on a first substrate, which comprises a second substrate and a first dielectric layer between the first and second substrates. The first dielectric layer comprises a pad formed in a corner of the first dielectric layer non-overlapping the second substrate, such that the surface and sidewall of the pad are exposed. A metal layer is formed directly on the exposed surface of the pad and covers the second substrate. A protective layer covers the metal layer, having an opening to expose a portion of the metal layer on the second substrate. A solder ball is disposed in the opening, electrically connecting to the metal layer. The invention also discloses a method for fabricating the same.Type: ApplicationFiled: January 11, 2007Publication date: July 17, 2008Inventors: Kai-Chih Wang, Fang-Chang Liu
-
Publication number: 20080164553Abstract: Isolation structure for CMOS image sensor device chip scale packages and fabrication methods thereof. A CMOS image sensor chip scale package includes a transparent substrate configured as a support structure for the package. The transparent substrate includes a first cutting edge and a second cutting edge. A CMOS image sensor die with a die circuitry is mounted on the transparent substrate. An encapsulant is disposed on the substrate encapsulating the CMOS image sensor die. A connection extends from the die circuitry to a plurality of terminal contacts for the package on the encapsulant, wherein the connection is exposed by the first cutting edge. An isolation structure is disposed on the first cutting edge passivating the exposed connection and co-planed with the second cutting edge.Type: ApplicationFiled: January 4, 2007Publication date: July 10, 2008Inventors: Tzu-Han Lin, Tzy-Ying Lin, Fang-Chang Liu, Kai-Chih Wang