Patents by Inventor Zhiqi Wang

Zhiqi 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: 20180240827
    Abstract: A packaging structure and a packaging method are provided. The packaging structure includes: a chip unit, where a first surface of the chip unit includes a sensing region; and an upper cover plate, where a first surface of the upper cover plate is provided with a support structure, the upper cover plate covers the first surface of the chip unit, the support structure is located between the upper cover plate and the chip unit, the sensing region is located in a cavity enclosed by the support structure and the first surface of the chip unit, and the upper cover plate has a preset thickness, so that light reflected by a sidewall of the upper cover plate is not directly incident on the sensing region.
    Type: Application
    Filed: September 1, 2016
    Publication date: August 23, 2018
    Applicant: China Wafer Level CSP Co., Ltd.
    Inventors: Zhiqi Wang, Fangyuan Hong
  • Publication number: 20180219732
    Abstract: A negotiation mode processing method and an intelligent network device relate to the field of communications technologies, and used to improve application flexibility of the intelligent network device. The method includes determining, by an intelligent network device, that a physical layer (PHY) receives an auto-negotiation configuration stream from a network device connected to the PHY, and changing a negotiation mode of another PHY in the intelligent network device from a non-auto-negotiation mode to an auto-negotiation mode. The auto-negotiation configuration stream indicates that the device sending the auto-negotiation configuration stream is in the auto-negotiation mode. In this way, the application flexibility of the intelligent network device can be improved, and further improves communication quality of the network device.
    Type: Application
    Filed: March 29, 2018
    Publication date: August 2, 2018
    Inventors: Fei Liu, Dapeng Chen, Jinli Du, Zhiqi Wang
  • Publication number: 20180145102
    Abstract: A fingerprint sensing chip packaging method and package are provided. The method includes: providing a cover plate, providing a fingerprint sensing chip, where a fingerprint sensing region and contact pads at periphery of the region are arranged on a front surface of the chip, electrically connecting the contact pads to a back surface of the chip, forming a first conductive structure electrically connected to the contact pads on the back surface of the chip, laminating the front surface of the chip with a back surface of the cover plate, providing a flexible printed circuit, where a second conductive structure is arranged on a back surface of the circuit and an opening is arranged in the circuit, laminating a front surface of the circuit with the back surface of the cover plate, and electrically connecting the first conductive structure to the second conductive structure.
    Type: Application
    Filed: November 16, 2017
    Publication date: May 24, 2018
    Applicant: China Wafer Level CSP Co., Ltd.
    Inventors: Zhiqi Wang, Yuanfei Liu, Hongjun Liu
  • Publication number: 20180129848
    Abstract: A chip packaging structure and a chip packaging method are provided. The chip packaging structure includes: a substrate; a sensing chip coupled to the substrate, where the sensing chip includes a first surface and a second surface facing away from the first surface, the sensing chip further includes a sensing region located in the first surface, and the second surface of the sensing chip faces to the substrate; and a molding layer located on the substrate and a portion of the first surface of the sensing chip, where the molding layer exposes the sensing region.
    Type: Application
    Filed: September 15, 2015
    Publication date: May 10, 2018
    Applicant: China Wafer Level CSP Co., Ltd.
    Inventors: Zhiqi Wang, Ying Yang, Qiong Yu, Wei Wang
  • Publication number: 20180114048
    Abstract: A chip packaging method and a chip packaging structure are provided. The packaging structure includes: a substrate; a sensing chip coupled to the substrate, the sensing chip including a first surface, a second surface, and a sensing area at the first surface, the second surface facing the substrate; a cover plate on the sensing area, the cover plate-having a third surface-in contact with the sensing area, and a fourth surface; and a plastic package layer on the substrate, the plastic package layer surrounding the sensing chip and covering part of the sidewall of the cover plate, the surface of the plastic package layer being higher than the third surface and lower than the fourth surface.
    Type: Application
    Filed: September 16, 2015
    Publication date: April 26, 2018
    Applicant: China Wafer Level CSP Co., Ltd.
    Inventors: Zhiqi Wang, Ying Yang, Qiong Yu, Wei Wang
  • Publication number: 20180108585
    Abstract: A chip package and packaging method are provided. The package includes: a substrate; a sensing chip coupled with the substrate, where the sensing chip has a first surface and a second surface opposite to the first surface and facing the substrate, where the sensing chip includes a sensing area arranged on the first surface and a peripheral area surrounding the sensing area, where the peripheral area is provided with a groove, and surfaces of sidewall and bottom of the groove and a surface of the peripheral area are provided with a rewiring layer, and the groove is exposed from sidewall of the sensing chip; and a plastic packaging layer arranged on the substrate, where the plastic packaging layer surrounds the sensing chip and fills the groove, and a surface of the sensing area is exposed from the plastic packaging layer.
    Type: Application
    Filed: September 16, 2015
    Publication date: April 19, 2018
    Applicant: China Wafer Level CSP Co., Ltd.
    Inventors: Zhiqi Wang, Ying Yang, Qiong Yu, Wei Wang
  • Publication number: 20180090524
    Abstract: An image sensor package and a method of packaging an image sensor are provided. The package includes: an image sensor chip including a first surface and a second surface opposite to each other, where the first surface is provided with a photosensitive region; a transparent substrate including a first surface and a second surface opposite to each other, where the first surface of the transparent substrate covers the first surface of the image sensor chip; and a light absorption layer, where the light absorption layer covers sidewalls of the transparent substrate. By forming the light absorption layer on at least the sidewalls of the transparent substrate of the image sensor package, defects of the image sensor chip such as bad imaging and ghosting are eliminated, thereby improving an imaging quality of the image sensor chip.
    Type: Application
    Filed: September 21, 2017
    Publication date: March 29, 2018
    Applicant: China Water Level CSP Co., Ltd.
    Inventor: Zhiqi Wang
  • Publication number: 20180068977
    Abstract: A packaging method and a packaging structure are provided. The method includes: providing a first substrate and a second substrate, the second substrate having a first surface and a second surface opposite to each other, a side surface of the first substrate being adhered to the first surface of the second substrate via an adhesive layer; forming a groove structure on the second surface of the second substrate; providing a base, the base having a first surface and a second surface opposite to each other, the first surface of the base including a sensing region and multiple bonding pads around the sensing region; and laminating the second surface of the second substrate with the first surface of the base to form a cavity between the groove structure and the base, such that the sensing region is located in the cavity.
    Type: Application
    Filed: October 23, 2015
    Publication date: March 8, 2018
    Applicant: China Wafer Level CSP Co., Ltd.
    Inventors: Zhiqi Wang, Ying Yang, Wei Wang
  • Publication number: 20180047772
    Abstract: A method for forming an image sensor package and an image sensor package are provided. The method includes: providing a first substrate and a second substrate which includes a first surface and a second surface opposite to the first surface, and attaching either surface of the first substrate with the first surface of the second substrate with an adhesive layer; forming a groove at the second surface of the second substrate; providing a base which includes a first surface and a second surface opposite to the first surface, where the first surface of the base is provided with a sensing region and multiple contact pads; and attaching the second surface of the second substrate with the first surface of the base, where a cavity is formed between the groove and the base, and the sensing region is located within the cavity.
    Type: Application
    Filed: September 21, 2015
    Publication date: February 15, 2018
    Applicant: China Wafer Level CSP Co., Ltd.
    Inventors: Zhiqi Wang, Qiong Yu, Wei Wang
  • Publication number: 20170287797
    Abstract: A chip packaging method and package structure, the package structure including a substrate, a sensing chip coupled to the substrate, a plastic package layer located on the substrate, and a covering layer located on the plastic package layer and a first surface of the sensing chip; the sensing chip including the first surface and a second surface opposite to the first surface, and further including a sensing area located on the first surface; the second surface of the sensing chip faces towards the substrate; and the plastic package layer encloses the sensing chip, and the surface of the plastic package layer is flush with the first surface of the sensing chip.
    Type: Application
    Filed: September 10, 2015
    Publication date: October 5, 2017
    Applicant: China Wafer Level CSP Co., Ltd.
    Inventors: Zhiqi Wang, Qiong Yu, Wei Wang
  • Publication number: 20170284837
    Abstract: A chip package structure and packaging method are provided. The chip package structure includes a sensing chip, a covering layer located on the first surface of the sensing chip, and a plug structure located in the sensing chip. The sensing chip includes a first surface, a second surface opposite to the first surface, and a sensing area located on the first surface. The second surface of the sensing chip faces to a base plate. One end of the plug structure is electrically connected to the sensing area, and the other end of the plug structure is exposed by the second surface of the sensing chip.
    Type: Application
    Filed: September 10, 2015
    Publication date: October 5, 2017
    Applicant: China Wafer Level CSP Co., Ltd.
    Inventors: Zhiqi Wang, Qiong Yu, Wei Wang
  • Patent number: 9748162
    Abstract: A chip package and a method for forming the same are provided. The method includes: providing a first chip, wherein the first chip comprises a first surface and a second surface, and a first plurality of pads are disposed on the first surface; providing a second chip, wherein the second chip comprises a third surface and a fourth surface, a second plurality of pads are disposed on the third surface; combining the second surface of the first chip and the third surface of the second chip, wherein the second plurality of pads are out of the combination area of the first chip and the second chip; and forming a first insulation layer, wherein the first insulation layer covers the first chip, and is combined with the second chip. Processes of the method are simple, and the chip package is small.
    Type: Grant
    Filed: January 6, 2015
    Date of Patent: August 29, 2017
    Assignee: China Wafer Level CSP Co., Ltd.
    Inventors: Zhiqi Wang, Junjie Li, Ying Yang, Qiong Yu, Wei Wang
  • Publication number: 20170162620
    Abstract: A packaging structure and a packaging method for a fingerprint identification chip are provided. The packaging structure includes a substrate, a sensing chip, a wire and a plastic encapsulation layer. The substrate is provided with a first solder pad layer. The sensing chip has a first surface and a second surface opposite to the first surface, the first surface comprises a sensing area and a peripheral area surrounding the sensing area, and the surface of the sensing chip in the peripheral area is provided with a second solder pad layer. Two ends of the wire are electrically connected to the first solder pad layer and the second solder pad layer respectively. The plastic encapsulation layer is made of a polymer, the plastic encapsulation layer surrounds the wire and the sensing chip.
    Type: Application
    Filed: June 30, 2015
    Publication date: June 8, 2017
    Applicant: China Wafer Level CSP Co., Ltd.
    Inventors: Zhiqi WANG, Qiong YU, Wei WANG
  • Publication number: 20170147851
    Abstract: A fingerprint recognition chip packaging structure and a packaging method. The packaging structure includes: a substrate, which is provided with a substrate surface; a sensor chip coupled on the surface of the substrate, where the sensor chip is provided with a first surface and a second surface opposite the first surface, the first surface of the sensor chip is provided with a sensing area, and the second surface of the sensor chip is arranged on the surface of the substrate; and, a lamination layer arranged on the surface of the substrate and on the surface of the sensor chip, where the lamination layer covers the surface of the sensing area of the sensor chip, a portion of the lamination layer located at the surface of the sensing area is of a preset thickness, and the material of the lamination layer is a polymer.
    Type: Application
    Filed: June 30, 2015
    Publication date: May 25, 2017
    Applicant: China Wafer Level CSP Co., Ltd.
    Inventors: Zhiqi Wang, Qiong Yu, Wei Wang
  • Publication number: 20170140195
    Abstract: A fingerprint recognition chip packaging structure and a packaging method. The packaging structure includes: a substrate provided with a substrate surface; a sensor chip coupled on the surface of the substrate, where the sensor chip is provided with a first surface and a second surface opposite the first surface, the first surface of the sensor chip is provided with a sensing area, and the second surface of the sensor chip is arranged on the surface of the substrate; a capping layer arranged on the surface of the sensing area of the sensor chip, where the material of the capping layer is a polymer; and, a lamination layer arranged on the surface of the substrate and that of the sensor chip, where the lamination layer exposes the capping layer. The packaging structure allows for reduced requirements on the sensitivity of the sensor chip, thus broadening applications.
    Type: Application
    Filed: June 30, 2015
    Publication date: May 18, 2017
    Applicant: China Wafer Level CSP Co., Ltd.
    Inventors: Zhiqi Wang, Qiong Yu, Wei Wang
  • Patent number: 9601531
    Abstract: A wafer level packaging structure for image sensors and a wafer level packaging method for image sensors are provided. The wafer level packaging structure includes: a wafer to be packaged including multiple chip regions and scribe line regions between the chip regions; pads and image sensing regions located on a first surface of the wafer and located in the chip regions; first dike structures covering surfaces of the pads and the scribe line regions; a packaging cover arranged facing the first surface of the wafer; and second dike structures located on a surface of the packaging cover. The second dike structures are arranged corresponding to the scribe line regions. The packaging cover and the wafer are jointed fixedly via the second dike structures and the first dike structures.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: March 21, 2017
    Assignee: China Wafer Level CSP Co., Ltd.
    Inventors: Zhiqi Wang, Qiong Yu, Wei Wang
  • Patent number: 9299735
    Abstract: Image sensor package structure and method are provided. The method includes: providing first substrate having upper surface on which image sensing areas and pads are formed; providing second substrate having through holes; forming tape film on upper surface of second substrate to seal each through hole; contacting lower surface of second substrate with upper surface of first substrate to make image sensing areas in through holes; removing portions of tape film and second substrate, wherein remained tape film and second substrate form cavities including sidewalls made of second substrate and caps sealing sidewalls and made of tape film, and remained second substrate also covers pads; removing portions of remained second substrate to expose pads; slicing first substrate to form single image sensor chips including image sensing areas and pads; and electrically connecting pads with circuits on third substrate through wires. Pollution or damage to image sensing areas may be avoided.
    Type: Grant
    Filed: August 19, 2014
    Date of Patent: March 29, 2016
    Assignee: China Wafer Level CSP Co., Ltd.
    Inventors: Zhiqi Wang, Qiong Yu, Wei Wang
  • Patent number: 9231018
    Abstract: A wafer level packaging structure for image sensors and a wafer level packaging method for image sensors are provided. The wafer level packaging structure includes: a wafer to be packaged including multiple chip regions and scribe line regions between the chip regions; pads and image sensing regions located on a first surface of the wafer and located in the chip regions; first dike structures covering surfaces of the pads; a packaging cover arranged facing the first surface of the wafer; and second dike structures located on a surface of the packaging cover. Projections of the second dike structures onto the first surface of the wafer are included in the scribe line regions. The packaging cover and the wafer are jointed fixedly via the second dike structures, while tops of the first dike structures and the surface of the packaging cover are contacted.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: January 5, 2016
    Assignee: China Wafer Level CSP Co., Ltd.
    Inventors: Zhiqi Wang, Qiong Yu, Wei Wang
  • Publication number: 20150200153
    Abstract: A chip package and a method for forming the same are provided. The method includes: providing a first chip, wherein the first chip comprises a first surface and a second surface, and a first plurality of pads are disposed on the first surface; providing a second chip, wherein the second chip comprises a third surface and a fourth surface, a second plurality of pads are disposed on the third surface; combining the second surface of the first chip and the third surface of the second chip, wherein the second plurality of pads are out of the combination area of the first chip and the second chip; and forming a first insulation layer, wherein the first insulation layer covers the first chip, and is combined with the second chip. Processes of the method are simple, and the chip package is small.
    Type: Application
    Filed: January 6, 2015
    Publication date: July 16, 2015
    Applicant: China Wafer Level CSP Co., Ltd.
    Inventors: Zhiqi Wang, Junjie Li, Ying Yang, Qiong Yu, Wei Wang
  • Publication number: 20150137294
    Abstract: Image sensor package structure and method are provided. The method includes: providing first substrate having upper surface on which image sensing areas and pads are formed; providing second substrate having through holes; forming tape film on upper surface of second substrate to seal each through hole; contacting lower surface of second substrate with upper surface of first substrate to make image sensing areas in through holes; removing portions of tape film and second substrate, wherein remained tape film and second substrate form cavities including sidewalls made of second substrate and caps sealing sidewalls and made of tape film, and remained second substrate also covers pads; removing portions of remained second substrate to expose pads; slicing first substrate to form single image sensor chips including image sensing areas and pads; and electrically connecting pads with circuits on third substrate through wires. Pollution or damage to image sensing areas may be avoided.
    Type: Application
    Filed: August 19, 2014
    Publication date: May 21, 2015
    Applicant: China Wafer Level CSP Co., Ltd.
    Inventors: Zhiqi Wang, Qiong Yu, Wei Wang