Patents by Inventor Swee Kah Lee

Swee Kah Lee 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).

  • Patent number: 9806043
    Abstract: A molded semiconductor package includes a mold compound having opposing first and second main surfaces and an edge extending between the first and second main surfaces. A semiconductor die is embedded in the mold compound. A plurality of metal pads are also embedded in the mold compound and electrically connected to the semiconductor die. The metal pads have a bottom face which is uncovered by the mold compound at the second main surface of the mold compound. The metal pads disposed around a periphery of the molded package have a side face which is uncovered by the mold compound at the edge of the mold compound. The faces of the metal pads uncovered by the mold compound are plated. The side face of each metal pad disposed around the periphery of the molded package is recessed inward from the edge of the mold compound. A corresponding manufacturing method is also described.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: October 31, 2017
    Assignee: Infineon Technologies AG
    Inventors: Swee Kah Lee, Hock Heng Chong, Mei Chin Ng, Aileen Manantan Soriano, Fong Mei Lum, Muhammad Muhammat Sanusi, Soon Lock Goh
  • Publication number: 20170275159
    Abstract: A base plate with a first side having an elevated portion, a recessed portion laterally surrounding the elevated portion, and a vertical face extending from the recessed portion to the elevated portion is provided. At least a part of the vertical face is covered with a metal layer. A mold compound structure is formed on the first side with the metal layer disposed between the first side and the mold compound structure such that the mold compound structure includes an elevated portion laterally surrounding a recessed portion, and opposing edge faces that vertically extend from the recessed portion to the elevated portion. At least a part of the base plate is subsequently removed such that the recessed portion of the mold compound structure is uncovered from the base plate and such that the metal layer remains on at least one uncovered section of the mold compound structure.
    Type: Application
    Filed: March 24, 2016
    Publication date: September 28, 2017
    Inventors: Chau Fatt Chiang, Kok Yau Chua, Swee Kah Lee, Chee Yang Ng, Horst Theuss
  • Publication number: 20170256472
    Abstract: A package which comprises a first encapsulant configured so that electrically conductive material is plateable thereon, and a second encapsulant configured so that electrically conductive material is not plateable thereon.
    Type: Application
    Filed: March 2, 2017
    Publication date: September 7, 2017
    Inventors: Sook Woon CHAN, Chau Fatt CHIANG, Kok Yau CHUA, Soon Lock GOH, Swee Kah LEE, Joachim MAHLER, Mei Chin NG, Beng Keh SEE, Guan Choon Matthew Nelson TEE
  • Publication number: 20170256509
    Abstract: A molded semiconductor package includes a mold compound having opposing first and second main surfaces and an edge extending between the first and second main surfaces. A semiconductor die is embedded in the mold compound. A plurality of metal pads are also embedded in the mold compound and electrically connected to the semiconductor die. The metal pads have a bottom face which is uncovered by the mold compound at the second main surface of the mold compound. The metal pads disposed around a periphery of the molded package have a side face which is uncovered by the mold compound at the edge of the mold compound. The faces of the metal pads uncovered by the mold compound are plated. The side face of each metal pad disposed around the periphery of the molded package is recessed inward from the edge of the mold compound. A corresponding manufacturing method is also described.
    Type: Application
    Filed: March 3, 2016
    Publication date: September 7, 2017
    Inventors: Swee Kah Lee, Hock Heng Chong, Mei Chin Ng, Aileen Manantan Soriano, Fong Mei Lum, Muhammad Muhammat Sanusi, Soon Lock Goh
  • Patent number: 9540539
    Abstract: A primer composition is provided. The primer composition includes at least one bi- or multi-functional benzoxazine compound; and at least one compound including a functional group having affinity for a metallic surface, and a cross-linkable group. A method of forming a primer layer on a semiconductor device, and a method of encapsulating a semiconductor device are also provided.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: January 10, 2017
    Assignee: Infineon Technologies AG
    Inventors: Swee Kah Lee, Joachim Mahler, Chew Theng Tai, Yik Yee Tan, Soon Lock Goh, Poh Cheng Lim, Jagen Krishnan, Peh Hean Teh
  • Publication number: 20160339616
    Abstract: A mold injection tool includes a first mold plate having first and second columns of mold cavities, each of the cavities and a first cull block arranged between the first and second columns. A plurality of first channel sections is formed between an adjacent pair of mold cavities. Each of the first channel sections are configured to guide liquefied molding material from the first cull block into the adjacent pair of mold cavities in the first and second columns. The mold injection tool further includes a second mold plate having similarly configured mold cavities, cull block, and channel section. Adjacent ones of the first and second channel sections form a contained chamber when the first and second mold plates are pressed together. The mold plates are configured to inject liquefied molding material through an entrance that is in open communication with each contained chamber.
    Type: Application
    Filed: May 22, 2015
    Publication date: November 24, 2016
    Inventors: Choon Huey Wang, Chau Fatt Chiang, Swee Kah Lee, Chee Hong Fang
  • Patent number: 9475691
    Abstract: A semiconductor package includes an electrically conductive lead-frame, including a first die paddle having a first opening, and a plurality of electrically conductive leads, a ridge formed around a perimeter of the first opening, and an electrically insulating molding compound. The electrically insulating molding compound includes an interior cavity being defined by a planar base surface and outer sidewalls, a second opening formed in the base surface, and an interior sidewall within the interior cavity. The molding compound is formed around the lead-frame with the first die paddle in the interior cavity. The first and second openings are aligned with one another so as to form a port that provides access to the interior cavity. The ridge and the interior sidewall form a dam that is configured to collect liquefied sealant and prevent the liquefied sealant from overflowing into the port or into adjacent regions of the interior cavity.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: October 25, 2016
    Assignee: Infineon Technologies AG
    Inventors: Kok Yau Chua, Sook Woon Chan, Chau Fatt Chiang, Stefan Martens, Matthias Steiert, Kian Hong Yeo, Hock Siang Chua, Mei Chin Ng, Swee Kah Lee
  • Patent number: 9287238
    Abstract: A semiconductor package includes a plurality of bond pads having a first side and a second side opposing the first side, a coating covering the first side of the bond pads, semiconductor dies and electrical conductors attached to the second side of the bond pads, and a molding compound encasing the semiconductor dies and the electrical conductors at the second side of the bonds pads. The molding compound has a first side through which the bond pads protrude and a second side opposing the first side, the first side of the molding compound having a planar surface between adjacent ones of the bond pads. The package further includes a material plated on exposed sidewalls of the bonds pads uncovered by the molding compound and which is detectable by optical inspection. A corresponding method of manufacture is also provided.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: March 15, 2016
    Assignee: Infineon Technologies AG
    Inventors: Soon Lock Goh, Swee Kah Lee
  • Publication number: 20160064298
    Abstract: An electronic device comprising a carrier having a mounting surface, at least one electronic chip mounted on the mounting surface, an encapsulant at least partially encapsulating the carrier and the at least one electronic chip, and a plurality of capsules in the encapsulant, wherein the capsules comprise a core comprising an additive and comprise a shell, in particular a crackable shell, enclosing the core.
    Type: Application
    Filed: August 26, 2015
    Publication date: March 3, 2016
    Inventors: Peh Hean TEH, Jagen Krishnan, Swee Kah Lee, Poh Cheng Lim, Joachim Mahler, Chew Theng Tai, Yik Yee Tan, Soon Lock Goh
  • Publication number: 20160043050
    Abstract: A metallization stack for a chip arrangement is provided, wherein the metallization stack comprises a first metallic layer; a plating layer comprising an alloy comprising nickel and zinc arranged over the first metallic structure; and a second metallic layer arranged over the plating layer.
    Type: Application
    Filed: August 8, 2015
    Publication date: February 11, 2016
    Inventor: Swee Kah LEE
  • Patent number: 9219025
    Abstract: A molded flip-chip semiconductor package includes a leadframe having opposing first and second main surfaces, a first metallization on the first main surface, a second metallization on the second main surface, recessed regions which extend from the second main surface toward the first main surface, and spaced apart leads chemically etched into the leadframe between gaps in the first metallization. The package further includes a semiconductor die having a plurality of pads facing and attached to the leads of the leadframe, a first molding compound that fills the recessed regions, and a second molding compound that encases the semiconductor die and fills the space between the leads such that the second molding compound abuts the first molding compound. A is the overall thickness of the leadframe, B is the spacing between adjacent ones of the leads, and B/A<1.
    Type: Grant
    Filed: August 15, 2014
    Date of Patent: December 22, 2015
    Assignee: Infineon Technologies AG
    Inventors: Swee Kah Lee, Chee Hong Fang, Mei Chin Ng
  • Publication number: 20150344730
    Abstract: A primer composition is provided. The primer composition includes at least one bi- or multi-functional benzoxazine compound; and at least one compound including a functional group having affinity for a metallic surface, and a cross-linkable group. A method of forming a primer layer on a semiconductor device, and a method of encapsulating a semiconductor device are also provided.
    Type: Application
    Filed: May 27, 2014
    Publication date: December 3, 2015
    Applicant: Infineon Technologies AG
    Inventors: Swee Kah LEE, Joachim MAHLER, Chew Theng TAI, Yik Yee TAN, Soon Lock GOH, Poh Cheng LIM, Jagen KRISHNAN, Peh Hean TEH
  • Publication number: 20150155229
    Abstract: A semiconductor package includes a plurality of bond pads having a first side and a second side opposing the first side, a coating covering the first side of the bond pads, semiconductor dies and electrical conductors attached to the second side of the bond pads, and a molding compound encasing the semiconductor dies and the electrical conductors at the second side of the bonds pads. The molding compound has a first side through which the bond pads protrude and a second side opposing the first side, the first side of the molding compound having a planar surface between adjacent ones of the bond pads. The package further includes a material plated on exposed sidewalls of the bonds pads uncovered by the molding compound and which is detectable by optical inspection. A corresponding method of manufacture is also provided.
    Type: Application
    Filed: December 2, 2013
    Publication date: June 4, 2015
    Inventors: Soon Lock Goh, Swee Kah Lee
  • Patent number: 8945990
    Abstract: Embodiments provide a method of forming a chip package. The method may include attaching at least one chip on a carrier, the chip including a plurality of chip pads on a surface of the chip opposite to the carrier; depositing a first adhesion layer on the carrier and on the chip pads of the chip, the first adhesion layer including tin or indium; depositing a second adhesion layer on the first adhesion layer, the second adhesion layer including a silane organic material; and depositing a lamination layer or an encapsulation layer on the second adhesion layer and the chip.
    Type: Grant
    Filed: April 24, 2012
    Date of Patent: February 3, 2015
    Assignee: Infineon Technologies AG
    Inventors: Holger Torwesten, Manfred Mengel, Stefan Schmid, Soon Lock Goh, Swee Kah Lee
  • Publication number: 20130277813
    Abstract: Embodiments provide a method of forming a chip package. The method may include attaching at least one chip on a carrier, the chip including a plurality of chip pads on a surface of the chip opposite to the carrier; depositing a first adhesion layer on the carrier and on the chip pads of the chip, the first adhesion layer including tin or indium; depositing a second adhesion layer on the first adhesion layer, the second adhesion layer including a silane organic material; and depositing a lamination layer or an encapsulation layer on the second adhesion layer and the chip.
    Type: Application
    Filed: April 24, 2012
    Publication date: October 24, 2013
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Holger Torwesten, Manfred Mengel, Stefan Schmid, Soon Lock Goh, Swee Kah Lee
  • Patent number: 8304295
    Abstract: Device and method for an electronic device package is disclosed. The electronic device package includes a first pad, a second pad and an encapsulation surrounding the first and second pad, wherein the encapsulation includes a first opening underneath the first pad and a second opening underneath the second pad. A first bump is arranged in the first opening and a second bump is arranged in the second opening, wherein the encapsulation mechanically locks the first bump to the first pad and the second bump to the second pad.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: November 6, 2012
    Assignee: Infineon Technologies AG
    Inventors: Soon Lock Goh, Swee Kah Lee, Chin Wei Ronnie Tan
  • Publication number: 20110309493
    Abstract: Device and method for an electronic device package is disclosed. The electronic device package includes a first pad, a second pad and an encapsulation surrounding the first and second pad, wherein the encapsulation includes a first opening underneath the first pad and a second opening underneath the second pad. A first bump is arranged in the first opening and a second bump is arranged in the second opening, wherein the encapsulation mechanically locks the first bump to the first pad and the second bump to the second pad.
    Type: Application
    Filed: June 22, 2010
    Publication date: December 22, 2011
    Inventors: Soon Lock Goh, Swee Kah Lee, Chin Wei Ronnie Tan