Patents by Inventor Chee Chian Lim

Chee Chian Lim 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: 20150091195
    Abstract: A method of attaching a die to a substrate is disclosed. A major surface of the die has an array of electrical contacts, and is covered with a tape segment having an array of apertures in register with the contacts. Solder balls are inserted into the apertures. The die is positioned against a substrate with the solder balls in register with the die pads on the surface of the substrate, and a heat treatment process is performed to bond the conductive elements to the corresponding bond pads.
    Type: Application
    Filed: December 8, 2014
    Publication date: April 2, 2015
    Inventor: Chee Chian Lim
  • Patent number: 8907501
    Abstract: A method of attaching a die to a substrate is disclosed. A major surface of the die has an array of electrical contacts, and is covered with a tape segment having an array of apertures in register with the contacts. Solder balls are inserted into the apertures. The die is positioned against a substrate with the solder balls in register with the die pads on the surface of the substrate, and a heat treatment process is performed to bond the conductive elements to the corresponding bond pads.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: December 9, 2014
    Assignee: Infineon Technologies AG
    Inventor: Chee Chian Lim
  • Patent number: 8637977
    Abstract: A method and apparatus of packaging a semiconductor device with a clip is disclosed. The clip defines a first contact region and a second contact region on a same face of the at least one clip. The chip defines a first face, and a second face opposite to the first face, the first contact region being attached to the first face of the chip and the second contact region being located within a same plane with the second face of the clip.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: January 28, 2014
    Assignee: Infineon Technologies AG
    Inventors: Boon Huat Lim, Chee Chian Lim, Yoke Chin Goh
  • Publication number: 20140015134
    Abstract: A method of attaching a die to a substrate is disclosed. A major surface of the die has an array of electrical contacts, and is covered with a tape segment having an array of apertures in register with the contacts. Solder balls are inserted into the apertures. The die is positioned against a substrate with the solder balls in register with the die pads on the surface of the substrate, and a heat treatment process is performed to bond the conductive elements to the corresponding bond pads.
    Type: Application
    Filed: September 18, 2013
    Publication date: January 16, 2014
    Applicant: Infineon Technologies AG
    Inventor: Chee Chian Lim
  • Patent number: 8604595
    Abstract: An electronic component includes lead fingers and a die paddle. A tape pad is mounted below the lead fingers and the die paddle. A first semiconductor chip is bonded onto the tape pad by a layer of first adhesive and a second semiconductor chip is bonded onto the die paddle by a layer of second adhesive. Electrical contacts are disposed between the contact areas of the semiconductors chips and the lead fingers. An encapsulating compound covers part of the lead fingers, the tape pad, the semiconductor chips and the electrical contacts.
    Type: Grant
    Filed: August 14, 2008
    Date of Patent: December 10, 2013
    Assignee: Infineon Technologies AG
    Inventors: Chee Chian Lim, May Ting Hng
  • Publication number: 20130285249
    Abstract: A method and apparatus of packaging a semiconductor device with a clip is disclosed. The clip defines a first contact region and a second contact region on a same face of the at least one clip. The chip defines a first face, and a second face opposite to the first face, the first contact region being attached to the first face of the chip and the second contact region being located within a same plane with the second face of the clip.
    Type: Application
    Filed: June 27, 2013
    Publication date: October 31, 2013
    Inventors: Boon Huat Lim, Chee Chian Lim, Yoke Chin Goh
  • Patent number: 8563357
    Abstract: A method of attaching a die to a substrate is disclosed. A major surface of the die has an array of electrical contacts, and is covered with a tape segment having an array of apertures in register with the contacts. Solder balls are inserted into the apertures. The die is positioned against a substrate with the solder balls in register with the die pads on the surface of the substrate, and a heat treatment process is performed to bond the conductive elements to the corresponding bond pads.
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: October 22, 2013
    Assignee: Infineon Technologies AG
    Inventor: Chee Chian Lim
  • Patent number: 8486757
    Abstract: A method and apparatus of packaging a semiconductor device with a clip is disclosed. The clip defines a first contact region and a second contact region on a same face of the at least one clip. The chip defines a first face, and a second face opposite to the first face, the first contact region being attached to the first face of the chip and the second contact region being located within a same plane with the second face of the clip.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: July 16, 2013
    Assignee: Infineon Technologies AG
    Inventors: Boon Huat Lim, Chee Chian Lim, Yoke Chin Goh
  • Patent number: 8373279
    Abstract: In an embodiment, a die package may be provided. The die package may include at least one first height adjusting structure, the at least one first height adjusting structure may include a first adjusting height relative to a common plane; at least one second height adjusting structure may be positioned adjacent to the at least one first height adjusting structure, the at least one second height adjusting structure may include a second adjusting height relative to the common plane; wherein the second adjusting height may be different from the first adjusting height relative to the common plane; a first die may be positioned on the at least one first height adjusting structure; and a mold housing substantially surrounding the at least one first height adjusting structure, the at least one second height adjusting structure and the first die.
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: February 12, 2013
    Assignee: Infineon Technologies AG
    Inventor: Chee Chian Lim
  • Patent number: 8049311
    Abstract: An electronic component includes a number of leads and at least one cooling element. The bottom surface of the cooling element is exposed and the material of the cooling element is different from the material of the leads. At least one semiconductor chip is provided on the cooling element. An encapsulation compound covers at least part of the leads, at least part of the semiconductor chip(s), and at least part of the cooling element(s).
    Type: Grant
    Filed: May 4, 2009
    Date of Patent: November 1, 2011
    Assignee: Infineon Technologies AG
    Inventors: Chee Chian Lim, Yoke Chin Goh, Koh Hoo Goh, May Ting Hng
  • Publication number: 20110261542
    Abstract: In an embodiment, a die package may be provided. The die package may include at least one first height adjusting structure, the at least one first height adjusting structure may include a first adjusting height relative to a common plane; at least one second height adjusting structure may be positioned adjacent to the at least one first height adjusting structure, the at least one second height adjusting structure may include a second adjusting height relative to the common plane; wherein the second adjusting height may be different from the first adjusting height relative to the common plane; a first die may be positioned on the at least one first height adjusting structure; and a mold housing substantially surrounding the at least one first height adjusting structure, the at least one second height adjusting structure and the first die.
    Type: Application
    Filed: April 23, 2010
    Publication date: October 27, 2011
    Applicant: INFINEON TECHNOLOGIES AG
    Inventor: Chee Chian Lim
  • Patent number: 7956459
    Abstract: An encapsulated leadless semiconductor package comprises a first semiconductor die and a second semiconductor die which are electrically connected by a bond wire. The lower surface of the first semiconductor die and the lower surface of the second semiconductor die are essentially coplanar with the lower surface of the encapsulation material.
    Type: Grant
    Filed: February 28, 2005
    Date of Patent: June 7, 2011
    Assignee: Infineon Technologies AG
    Inventor: Chee Chian Lim
  • Publication number: 20110121461
    Abstract: A method and apparatus of packaging a semiconductor device with a clip is disclosed. The clip defines a first contact region and a second contact region on a same face of the at least one clip. The chip defines a first face, and a second face opposite to the first face, the first contact region being attached to the first face of the chip and the second contact region being located within a same plane with the second face of the clip.
    Type: Application
    Filed: November 25, 2009
    Publication date: May 26, 2011
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Boon Huat Lim, Chee Chian Lim, Yoke Chin Goh
  • Patent number: 7944050
    Abstract: An integrated circuit device comprises a first semiconductor chip on a first substrate and a second semiconductor chip on a second substrate. A side surface of the first semiconductor chip is facing a side surface of the second semiconductor chip. At least one electric cable is provided to be connecting the first substrate to the second substrate.
    Type: Grant
    Filed: February 6, 2008
    Date of Patent: May 17, 2011
    Assignee: Infineon Technologies AG
    Inventor: Chee Chian Lim
  • Publication number: 20090321961
    Abstract: A method of attaching a die to a substrate is disclosed. A major surface of the die has an array of electrical contacts, and is covered with a tape segment having an array of apertures in register with the contacts. Solder balls are inserted into the apertures. The die is positioned against a substrate with the solder balls in register with the die pads on the surface of the substrate, and a heat treatment process is performed to bond the conductive elements to the corresponding bond pads.
    Type: Application
    Filed: June 26, 2008
    Publication date: December 31, 2009
    Inventor: Chee Chian Lim
  • Patent number: 7618845
    Abstract: A QFN integrated circuit is mounted on a leadframe having multiple lead lands and resin material encapsulates the integrated circuit leaving the lead lands exposed. Subsequently a sawing operation divides the lead lands into multiple leads, and the leadframe and resin material are partitioned to form packages. The pitch of the resultant leads is not limited by the pitch of the lead lands of the leadframe, so the leadframe can be of the relatively cheap generic leadframe variety, in which the pitch of the lead lands is higher than the desired pitch of the leads of the completed package. The sawing operation may further include reshaping the diepad area of the leadframe to produce heat sink fins, for improved heat dissipation. The proposed process is suitable both to produce packages including only a single integrated circuit, and also to produce multi-chip modules.
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: November 17, 2009
    Assignee: Infineon Technologies AG
    Inventor: Chee Chian Lim
  • Publication number: 20090250807
    Abstract: An electronic component includes a number of leads and at least one cooling element. The bottom surface of the cooling element is exposed and the material of the cooling element is different from the material of the leads. At least one semiconductor chip is provided on the cooling element. An encapsulation compound covers at least part of the leads, at least part of the semiconductor chip(s), and at least part of the cooling element(s).
    Type: Application
    Filed: May 4, 2009
    Publication date: October 8, 2009
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Chee Chian Lim, Yoke Chin Goh, Koh Hoo Goh, May Tin Hng
  • Publication number: 20090194873
    Abstract: An integrated circuit device comprises a first semiconductor chip on a first substrate and a second semiconductor chip on a second substrate. A side surface of the first semiconductor chip is facing a side surface of the second semiconductor chip. At least one electric cable is provided to be connecting the first substrate to the second substrate.
    Type: Application
    Filed: February 6, 2008
    Publication date: August 6, 2009
    Applicant: INFINEON TECHNOLOGIES AG
    Inventor: Chee Chian Lim
  • Patent number: 7553745
    Abstract: A method of manufacturing an integrated circuit package includes: assembling a composite wafer including alternating rows or columns of first and second strips on an adhesive tape, the first strips including a plurality of first dies and the second strips including a plurality of second dies, singulating the first dies from the first strips and the second dies from the second strips, forming a bond wire between respective ones of the first dies and respective ones of the second dies, thereby forming a plurality of component, embedding the components in mold compound, thereby forming a panel and separating the components from the panel, thereby forming individual integrated circuit packages.
    Type: Grant
    Filed: July 27, 2007
    Date of Patent: June 30, 2009
    Assignee: Infineon Technologies AG
    Inventor: Chee Chian Lim
  • Patent number: RE43818
    Abstract: A QFN integrated circuit is mounted on a leadframe having multiple lead lands and resin material encapsulates the integrated circuit leaving the lead lands exposed. Subsequently a sawing operation divides the lead lands into multiple leads, and the leadframe and resin material are partitioned to form packages. The pitch of the resultant leads is not limited by the pitch of the lead lands of the leadframe, so the leadframe can be of the relatively cheap generic leadframe variety, in which the pitch of the lead lands is higher than the desired pitch of the leads of the completed package. The sawing operation may further include reshaping the diepad area of the leadframe to produce heat sink fins, for improved heat dissipation. The proposed process is suitable both to produce packages including only a single integrated circuit, and also to produce multi-chip modules.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: November 20, 2012
    Assignee: Infineon Technologies AG
    Inventor: Chee Chian Lim