Patents Assigned to Unimicron Technology Corporation
  • Patent number: 9111948
    Abstract: A semiconductor package structure is provided, including: a semiconductor chip having electrode pads disposed thereon and metal bumps disposed on the electrode pads; an encapsulant encapsulating the semiconductor chip; a dielectric layer formed on the encapsulant and having a plurality of patterned intaglios formed therein for exposing the metal bumps; a wiring layer formed in the patterned intaglios of the dielectric layer and electrically connected to the metal bumps; and a metal foil having a plurality of metal posts disposed on a surface thereof such that the metal foil is disposed on the encapsulant with the metal posts penetrating the encapsulant so as to extend to the inactive surface of the semiconductor chip. Compared with the prior art, the present invention reduces the overall thickness of the package structure, increases the electrical transmission efficiency and improves the heat dissipating effect.
    Type: Grant
    Filed: December 3, 2013
    Date of Patent: August 18, 2015
    Assignee: Unimicron Technology Corporation
    Inventors: Tzyy-Jang Tseng, Dyi-Chung Hu, Yu-Shan Hu
  • Patent number: 9093459
    Abstract: A package structure includes: a first dielectric layer having a first surface and a second surface opposing the first surface; a semiconductor chip embedded in the first dielectric layer in a manner that the semiconductor chip protrudes from the second surface, and having an active surface and an inactive surface opposing the active surface, electrode pads being disposed on the active surface and in the first dielectric layer, the inactive surface and a part of a side surface adjacent the inactive surface protruding from the second surface; a first circuit layer disposed on the first surface; a built-up structure disposed on the first surface and the first circuit layer; and an insulating protective layer disposed on the built-up structure, a plurality of cavities being formed in the insulating protective layer for exposing a part of a surface of the built-up structure. The package structure includes only one built-up structure.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: July 28, 2015
    Assignee: Unimicron Technology Corporation
    Inventors: Pao-Hung Chou, Chih-Hao Hsu
  • Patent number: 9070616
    Abstract: A packaging substrate includes a first dielectric layer; a plurality of first conductive pads embedded in and exposed from a first surface of the first dielectric layer; a first circuit layer embedded in and exposed from a second surface of the first dielectric layer; a plurality of first metal bumps disposed in the first dielectric layer, each of the first metal bumps having a first end embedded in the first circuit layer and a second end opposing the first end and disposed on one of the first conductive pads, a conductive seedlayer being disposed between the first circuit layer and the first dielectric layer and between the first circuit layer and the first metal bump; a built-up structure disposed on the first circuit layer and the first dielectric layer; and a plurality of second conductive pads disposed on the built-up structure. The packaging substrate has an over-warpage problem improved.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: June 30, 2015
    Assignee: Unimicron Technology Corporation
    Inventors: Tzyy-Jang Tseng, Chung-W. Ho
  • Patent number: 9024422
    Abstract: A package structure having an embedded semiconductor component, includes: a chip having an active surface with electrode pads and an inactive surface opposite to the active surface; a first insulating protection layer having a chip mounting area for the chip to be mounted thereon via the active surface thereof; a plurality of connection columns disposed in the first insulating protection layer at positions corresponding to the electrode pads and electrically connected to the electrode pads via solder bumps; an encapsulant formed on one surface of the first insulating protection layer having the chip mounted thereon for encapsulating the chip; and a built-up structure formed on the other surface of the first insulating protection layer and the connection columns. Due to the bending resistance of the encapuslant, the warpage of the built-up structure is prevented.
    Type: Grant
    Filed: October 4, 2013
    Date of Patent: May 5, 2015
    Assignee: Unimicron Technology Corporation
    Inventors: Shih-Ping Hsu, I-Ta Tsai
  • Patent number: 8999759
    Abstract: A method for fabricating a packaging structure having an embedded semiconductor element includes: providing a substrate having opposite first and second surfaces and at least an opening penetrating the first and second surfaces; forming a first metallic frame around the periphery of the opening on the first surface; forming at least an opening inside the first metallic frame by laser ablation; disposing a semiconductor chip in the opening; forming a first dielectric layer on the first and second surfaces and the chip; forming a first wiring layer on the first dielectric layer of the first surface; and forming a first built-up structure on the first dielectric layer and the first wiring layer of the first surface. A shape of the opening is precisely controlled through the first metallic frame around the periphery of the predefined opening region, thereby allowing the chip to be precisely embedded in the substrate.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: April 7, 2015
    Assignee: Unimicron Technology Corporation
    Inventor: Kan-Jung Chia
  • Patent number: 8981570
    Abstract: A through-holed interposer is provided, including a board body, a conductive gel formed in the board body, and a circuit redistribution structure disposed on the board body. The conductive gel has one end protruding from a surface of the board body, and an area of the protruded end of the conductive gel that is in contact with other structures (e.g., packaging substrates or circuit structures) is increased, thereby strengthening the bonding of the conductive gel and reliability of the interposer.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: March 17, 2015
    Assignee: Unimicron Technology Corporation
    Inventors: Tzyy-Jang Tseng, Dyi-Chung Hu, Ying-Chih Chan
  • Patent number: 8956909
    Abstract: An electronic device and a method of fabricating the same are provided. The electronic device includes: a photodiode layer; a wiring layer formed on the first surface of the photodiode layer; a plurality of electrical contact pads formed on the wiring layer; a passivation layer formed on the wiring layer and the electrical contact pads; an antireflective layer formed on the second surface of the photodiode layer; a color filter layer formed on the antireflective layer; a dielectric layer formed on the antireflective layer and the color filter layer; and a microlens layer formed on the dielectric layer, allowing the color filter layer, the dielectric layer and the microlens layer to define an active region within which the electrical contact pads are positioned. As the electrical contact pads are positioned within the active region, an area of the substrate used for an inactive region can be eliminated.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: February 17, 2015
    Assignee: Unimicron Technology Corporation
    Inventors: Tzyy-Jang Tseng, Dyi-Chung Hu
  • Patent number: 8946564
    Abstract: A packaging substrate having an embedded through-via interposer is provided, including an encapsulant layer, a through-via interposer embedded in the encapsulant layer and having a plurality of conductive through-vias therein, a redistribution layer embedded in the encapsulant layer and formed on the through-via interposer so as to electrically connect with first end surfaces of the conductive through-vias, and a built-up structure formed on the encapsulant layer and the through-via interposer for electrically connecting second end surfaces of the conductive through-vias.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: February 3, 2015
    Assignee: Unimicron Technology Corporation
    Inventors: Dyi-Chung Hu, Tzyy-Jang Tseng
  • Patent number: 8912642
    Abstract: A packaging substrate includes a first dielectric layer, a first circuit layer, a first metal bump, and a built-up structure. The first metal bump and the first circuit layer are embedded in and exposed from two surfaces of the first dielectric layer. The end of the first metal bump is embedded in the first circuit layer and between the first circuit layer and the first dielectric layer. In addition, a conductive seedlayer is disposed between the first circuit layer and the first metal bump. The built-up structure is disposed on the first circuit layer and the first dielectric layer. The outmost layer of the built-up structure has a plurality of conductive pads. Compared to the prior art, the present invention can effectively improve the warpage problem of the conventional packaging substrate.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: December 16, 2014
    Assignee: Unimicron Technology Corporation
    Inventors: Tzyy-Jang Tseng, Chung-W. Ho
  • Patent number: 8884429
    Abstract: A package structure having an embedded electronic component includes: a carrier having a cavity penetrating therethrough; a semiconductor chip received in the cavity and having solder bumps disposed thereon; a dielectric layer formed on the carrier and the semiconductor chip so as to encapsulate the solder bumps; a wiring layer formed on the dielectric layer; an insulating protection layer formed on the dielectric layer and the wiring layer; and a solder material formed in the dielectric layer and the insulating protection layer for electrically connecting the wiring layer and the solder bumps, thereby shortening the signal transmission path between the semiconductor chip and the carrier to avoid signal losses.
    Type: Grant
    Filed: January 18, 2012
    Date of Patent: November 11, 2014
    Assignee: Unimicron Technology Corporation
    Inventor: Zhao-Chong Zeng
  • Patent number: 8859912
    Abstract: A coreless package substrate is provided, including: a circuit buildup structure including at least a dielectric layer, at least a circuit layer and conductive elements; first electrical contact pads embedded in the lowermost dielectric layer of the circuit buildup structure; a plurality of metal bumps formed on the uppermost circuit layer of the circuit buildup structure; a dielectric passivation layer disposed on a top surface of the circuit buildup structure and the metal bumps; and second electrical contact pads embedded in the dielectric passivation layer and electrically connected to the metal bumps. With the second electrical contact pads being engaged with the metal bumps and having top surfaces thereof completely exposed, the bonding strength between the second electrical contact pads and a chip to be mounted thereon and between the second electrical contact pads and the metal bumps can be enhanced.
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: October 14, 2014
    Assignee: Unimicron Technology Corporation
    Inventors: Tzyy-Jang Tseng, Chung-W. Ho
  • Publication number: 20140263168
    Abstract: A method for manufacturing a package substrate is provided, including etching a substrate to form trenches each having a buffer portion, and forming a circuit in each of the trenches. The trenches are formed by etching instead of excimer laser to increase the aspect ratio of the trench, thereby solving the problem that the metallic layer is not thick enough and achieving a high yield of the circuit and a good process capability index.
    Type: Application
    Filed: November 25, 2013
    Publication date: September 18, 2014
    Applicant: Unimicron Technology Corporation
    Inventors: Shih-Lian Cheng, Jui-Jung Chien
  • Publication number: 20140264335
    Abstract: A package substrate is provided, including a board body having a wiring region and a testing region defined thereon, conductive pads embedded in the wiring region, and a plurality of testing pads disposed in the testing region and electrically connected to the conductive pads, wherein the top surface area of each of the testing pads is greater than the top surface area of each of the conductive pads in order to facilitate a precise alignment of a probe with a corresponding one of the testing pads and prevent the probe from being blocked by the board body when in electrically testing an embedded circuit.
    Type: Application
    Filed: March 18, 2013
    Publication date: September 18, 2014
    Applicant: UNIMICRON TECHNOLOGY CORPORATION
    Inventors: Dyi-Chung Hu, Tsung-Si Wang, Jui-Yang Ma
  • Patent number: 8835992
    Abstract: An electronic device and a method of fabricating the same are provided. The electronic device includes: a photodiode layer; a wiring layer formed on the first surface of the photodiode layer; a plurality of electrical contact pads formed on the wiring layer; a passivation layer formed on the wiring layer and the electrical contact pads; an antireflective layer formed on the second surface of the photodiode layer; a color filter layer formed on the antireflective layer; a dielectric layer formed on the antireflective layer and the color filter layer; and a microlens layer formed on the dielectric layer, allowing the color filter layer, the dielectric layer and the microlens layer to define an active region within which the electrical contact pads are positioned. As the electrical contact pads are positioned within the active region, an area of the substrate used for an inactive region can be eliminated.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: September 16, 2014
    Assignee: Unimicron Technology Corporation
    Inventors: Tzyy-Jang Tseng, Dyi-Chung Hu
  • Patent number: 8829356
    Abstract: A packaging substrate includes: a dielectric layer unit having top and bottom surfaces; a positioning pad embedded in the bottom surface of the dielectric layer unit; at least a passive element having a plurality of electrode pads disposed on upper and lower surfaces thereof, the passive element being embedded in the dielectric layer unit and corresponding to the positioning pad; a first circuit layer disposed on the top surface of the dielectric layer unit, the first circuit layer having first conductive vias electrically connected to the electrode pads disposed on the upper surface of the passive element; and a second circuit layer disposed on the bottom surface of the dielectric layer unit, the second circuit layer having second conductive vias electrically connected to the electrode pads disposed on the lower surface of the passive element. Through the embedding of the passive element, the overall structure may have a reduced height.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: September 9, 2014
    Assignee: Unimicron Technology Corporation
    Inventors: Shih-Ping Hsu, Zhao-Chong Zeng
  • Publication number: 20140239490
    Abstract: A packaging substrate and a fabrication method thereof are disclosed. The packaging substrate includes: a substrate body having a plurality of first and second conductive pads formed on a surface thereof; a first insulating layer formed on the surface of the substrate body and having a plurality of first and second openings for respectively exposing the first and second conductive pads; a conductive layer formed on the first and second conductive pads and the first insulating layer around peripheries of the first and second conductive pads; a plurality of first and second conductive bumps formed on the conductive layer on the first and second conductive pads, respectively; a solder layer formed on the second conductive bumps; and a plurality of conductive posts formed on the first conductive bumps and having a width different from that of the first conductive bumps. The invention improves the fabrication efficiency.
    Type: Application
    Filed: February 26, 2013
    Publication date: August 28, 2014
    Applicant: UNIMICRON TECHNOLOGY CORPORATION
    Inventor: Ying-Tung Wang
  • Publication number: 20140201992
    Abstract: A method for fabricating a circuit board structure having at least an embedded electronic element is disclosed, which includes the steps of: providing a substrate and embedding at least an electronic element in the substrate with an active surface and a plurality of electrode pads of the electronic element exposed from a surface of the substrate; forming a plurality of conductive bumps on the electrode pads of the electronic element; and covering the surface of the substrate and the active surface of the electronic element with a dielectric layer and a metal layer stacked on the dielectric layer, wherein the conductive bumps penetrate the dielectric layer so as to be in contact with the metal layer, thereby simplifying the fabrication process, reducing the fabrication cost and saving the fabrication time.
    Type: Application
    Filed: December 5, 2013
    Publication date: July 24, 2014
    Applicant: UNIMICRON TECHNOLOGY CORPORATION
    Inventors: Yung-Ching Lin, Chih-Kuie Yang, Ta-Han Lin
  • Patent number: 8786108
    Abstract: A package structure is provided, which includes a dielectric layer having opposing first and second surfaces, and through holes penetrating the surfaces; a strengthening layer formed on the first surface; a circuit layer formed on the second surface, and having wire bonding pads formed thereon and exposed from the through holes, and ball pads electrically connected to the wire bonding pads; a first solder mask layer formed on the first surface and the strengthening layer, and having first apertures formed therethrough for exposing the wire bonding pads; a second solder mask layer formed on the second surface and the circuit layer, and having second apertures formed therethrough for exposing the ball pads; and a semiconductor chip disposed on the first solder mask layer and electrically connected via conductive wires to the wire bonding pads exposed from the through holes. The strengthening layer ensures the steadiness of the chip to be mounted thereon without position shifting.
    Type: Grant
    Filed: June 16, 2011
    Date of Patent: July 22, 2014
    Assignee: Unimicron Technology Corporation
    Inventor: Kun-Chen Tsai
  • Publication number: 20140182912
    Abstract: A packaging substrate is provided, including a substrate body having a plurality of conductive pads, an insulating protective layer formed on the substrate body for the conductive pads to be exposed therefrom, and a plurality of conductive pillars disposed on the conductive pads. Each of the conductive pillars has a bottom end and a top end narrower than the bottom end, thereby forming a cone-shaped structure that does not have a wing structure. Therefore, the distance between contact points is reduced and the demands for fine-pitch and multi-joints are satisfied.
    Type: Application
    Filed: September 5, 2013
    Publication date: July 3, 2014
    Applicant: Unimicron Technology Corporation
    Inventors: Chun-Ting Lin, Yu-Chung Hsieh, Ying-Tung Wang, Ying-Chih Chan
  • Publication number: 20140117557
    Abstract: A package substrate and a method for forming the package substrate are disclosed. The package substrate includes an interposer having a plurality of conductive through vias and a first insulating layer formed on the sidewalls of the conductive through vias, a second insulating layer formed on one side of the interposer, and a plurality of conductive vias formed in the second insulating layer and electrically connected to the conductive through vias. By increasing the thickness of the first insulating layer, the face diameter of the conductive through vias can be reduced, and the layout density of the conductive through vias in the interposer can thus be increased.
    Type: Application
    Filed: August 13, 2013
    Publication date: May 1, 2014
    Applicants: UNIMICRON TECHNOLOGY CORPORATION, INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Yu-Hua CHEN, Wei-Chung LO, Dyi-Chung HU, Chang-Hong HSIEH