Patents by Inventor Abdul Rahman Mohamed

Abdul Rahman Mohamed 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: 11211353
    Abstract: A clip for a semiconductor package and a semiconductor having a clip is disclosed. In one example, the clip includes a first planar portion, a plurality of first pillars, and a plurality of first solder balls. Each first pillar of the plurality of first pillars is coupled to the first planar portion. Each first solder ball of the plurality of first solder balls is coupled to a corresponding first pillar of the plurality of first pillars.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: December 28, 2021
    Assignee: Infineon Technologies AG
    Inventors: Mohd Kahar Bajuri, Abdul Rahman Mohamed, Siang Kuan Chua, Ke Yan Tean
  • Publication number: 20210013171
    Abstract: A clip for a semiconductor package and a semiconductor having a clip is disclosed. In one example, the clip includes a first planar portion, a plurality of first pillars, and a plurality of first solder balls. Each first pillar of the plurality of first pillars is coupled to the first planar portion. Each first solder ball of the plurality of first solder balls is coupled to a corresponding first pillar of the plurality of first pillars.
    Type: Application
    Filed: July 9, 2019
    Publication date: January 14, 2021
    Applicant: Infineon Technologies AG
    Inventors: Mohd Kahar Bajuri, Abdul Rahman Mohamed, Siang Kuan Chua, Ke Yan Tean
  • Patent number: 10325838
    Abstract: A method of fabricating a semiconductor device is disclosed. In one aspect, the method includes placing a first semiconductor chip on a carrier with the first main surface of the first semiconductor chip facing the carrier. A first layer of soft solder material is provided between the first main surface and the carrier. Heat is applied during placing so that a temperature at the first layer of soft solder material is equal to or higher than a melting temperature of the first layer of soft solder material. A second layer of soft solder material is provided between the first contact area and the second main surface. Heat is applied during placing so that a temperature at the second layer of soft solder material is equal to or higher than a melting temperature of the second layer of soft solder material. The first and second layers of soft solder material are cooled to solidify the soft solder materials.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: June 18, 2019
    Assignee: Infineon Technologies AG
    Inventors: Abdul Rahman Mohamed, Chu Hua Goh
  • Publication number: 20170365544
    Abstract: A method of fabricating a semiconductor device is disclosed. In one aspect, the method includes placing a first semiconductor chip on a carrier with the first main surface of the first semiconductor chip facing the carrier. A first layer of soft solder material is provided between the first main surface and the carrier. Heat is applied during placing so that a temperature at the first layer of soft solder material is equal to or higher than a melting temperature of the first layer of soft solder material. A second layer of soft solder material is provided between the first contact area and the second main surface. Heat is applied during placing so that a temperature at the second layer of soft solder material is equal to or higher than a melting temperature of the second layer of soft solder material. The first and second layers of soft solder material are cooled to solidify the soft solder materials.
    Type: Application
    Filed: June 15, 2017
    Publication date: December 21, 2017
    Applicant: Infineon Technologies AG
    Inventors: Abdul Rahman Mohamed, Chu Hua Goh
  • Patent number: 9196521
    Abstract: An adjustable pick-up head, a collet head, a method to adjust a pick-up head and a method of manufacturing a device are disclosed. In one embodiment a pick-up head includes a shank having a holder and an intermediate body connected to the holder by a first joint. The pick-up head further includes a collet head connected to the intermediate body by a second joint.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: November 24, 2015
    Assignee: Infineon Technologies AG
    Inventors: Abdul Rahman Mohamed, Subaramaniym Senivasan, Zakaria Abdullah, Ralf Otremba
  • Patent number: 8975117
    Abstract: A method includes providing a semiconductor chip having a first main surface and a second main surface. A semiconductor chip is placed on a carrier with the first main surface of the semiconductor chip facing the carrier. A first layer of solder material is provided between the first main surface and the carrier. A contact clip including a first contact area is placed on the semiconductor chip with the first contact area facing the second main surface of the semiconductor chip. A second layer of solder material is provided between the first contact area and the second main surface. Thereafter, heat is applied to the first and second layers of solder material to form diffusion solder bonds between the carrier, the semiconductor chip and the contact clip.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: March 10, 2015
    Assignee: Infineon Technologies AG
    Inventors: Ralf Otremba, Fong Lim, Abdul Rahman Mohamed, Chooi Mei Chong, Ida Fischbach, Xaver Schloegel, Juergen Schredl, Josef Hoeglauer
  • Publication number: 20140123454
    Abstract: An adjustable pick-up head, a collet head, a method to adjust a pick-up head and a method of manufacturing a device are disclosed. In one embodiment a pick-up head includes a shank having a holder and an intermediate body connected to the holder by a first joint. The pick-up head further includes a collet head connected to the intermediate body by a second joint.
    Type: Application
    Filed: November 5, 2012
    Publication date: May 8, 2014
    Applicant: Infineon Technologies AG
    Inventors: Abdul Rahman Mohamed, Subaramaniym Senivasan, Zakaria Abdullah, Ralf Otremba
  • Patent number: 8642394
    Abstract: An electronic device and method of manufacturing. One embodiment includes attaching a first semiconductor chip to a first metallic clip. The first semiconductor chip is placed over a leadframe after the attachment of the first semiconductor chip to the first metallic clip.
    Type: Grant
    Filed: January 28, 2008
    Date of Patent: February 4, 2014
    Assignee: Infineon Technologies AG
    Inventors: Abdul Rahman Mohamed, Stanley Job Doraisamy, Tien Lai Tan, Ralf Otremba
  • Publication number: 20130200532
    Abstract: A method includes providing a semiconductor chip having a first main surface and a second main surface. A semiconductor chip is placed on a carrier with the first main surface of the semiconductor chip facing the carrier. A first layer of solder material is provided between the first main surface and the carrier. A contact clip including a first contact area is placed on the semiconductor chip with the first contact area facing the second main surface of the semiconductor chip. A second layer of solder material is provided between the first contact area and the second main surface. Thereafter, heat is applied to the first and second layers of solder material to form diffusion solder bonds between the carrier, the semiconductor chip and the contact clip.
    Type: Application
    Filed: February 8, 2012
    Publication date: August 8, 2013
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Ralf Otremba, Fong Lim, Abdul Rahman Mohamed, Chooi Mei Chong, Ida Fischbach, Xaver Schloegel, Juergen Schredl, Josef Hoeglauer
  • Publication number: 20110293504
    Abstract: The present invention provides a process for producing substantially uniform-sized carbon nanotubes (CNTs), the process includes the step of contacting methane with catalytic particles at a temperature of between 650 to 850° C.
    Type: Application
    Filed: November 18, 2008
    Publication date: December 1, 2011
    Inventors: Abdul Rahman Mohamed, Siang Piao Chai
  • Patent number: 8043545
    Abstract: Methods and apparatus to evenly clamp semiconductor substrates in a transfer mold process are disclosed. A disclosed split mold base includes a first plate having a first surface, a second plate having a second surface opposite the first surface, and a plurality of springs that are disposed between the first and second plates to distribute a clamping pressure applied by a mold press.
    Type: Grant
    Filed: December 31, 2007
    Date of Patent: October 25, 2011
    Assignee: Texas Instruments Incorporated
    Inventors: Selvarajan Murugan, Abdul Rahman Mohamed Rafaie
  • Patent number: 7863104
    Abstract: A method of fabricating a semiconductor chip includes the providing an adhesive layer on the outer area of the active surface of a device wafer and attaching a rigid body to the active surface by the adhesive layer. The device wafer is thinned by treating the passive surface of the device wafer. A first backing tape is connected to the passive surface of the device wafer. The outer portion of the rigid body is separated from the central portion of the rigid body and the outer portion of the device wafer is separated from the central portion of the device wafer. The central portion of the rigid body, the outer portion of the device wafer and the outer portion of the rigid body are removed from the first backing tape. The device wafer may be diced into semiconductor chips.
    Type: Grant
    Filed: October 7, 2008
    Date of Patent: January 4, 2011
    Assignee: Infineon Technologies AG
    Inventors: Werner Kroeninger, Manfred Kotek, Adolf Koller, Abdul Rahman Mohamed
  • Patent number: 7615410
    Abstract: A semiconductor package (10; 14) comprises a semiconductor die (2; 2?) with a plurality of contact areas (4) on its active surface and an electrically conductive bump (7) on each contact area (4). The die (2; 2?) and electrically conductive bumps (7) are encapsulated in a plastic housing (11) so that the plastic housing (11) encapsulates at least sides of the die (2; 2?) and sides of the electrically conductive bumps (7).
    Type: Grant
    Filed: July 12, 2006
    Date of Patent: November 10, 2009
    Assignee: Infineon Technologies AG
    Inventors: Koh Hoo Goh, Bun-Hin Keong, Abdul Rahman Mohamed
  • Publication number: 20090189259
    Abstract: An electronic device and method of manufacturing. One embodiment includes attaching a first semiconductor chip to a first metallic clip. The first semiconductor chip is placed over a leadframe after the attachment of the first semiconductor chip to the first metallic clip.
    Type: Application
    Filed: January 28, 2008
    Publication date: July 30, 2009
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Abdul Rahman Mohamed, Stanley Job Doraisamy, Tien Lai Tan, Ralf Otremba
  • Publication number: 20090166923
    Abstract: Methods and apparatus to evenly clamp semiconductor substrates in a transfer mold process are disclosed. A disclosed split mold base includes a first plate having a first surface, a second plate having a second surface opposite the first surface, and a plurality of springs that are disposed between the first and second plates to distribute a clamping pressure applied by a mold press.
    Type: Application
    Filed: December 31, 2007
    Publication date: July 2, 2009
    Inventors: Selvarajan Murugan, Abdul Rahman Mohamed Rafaie
  • Publication number: 20090098684
    Abstract: A method of fabricating a semiconductor chip includes the providing an adhesive layer on the outer area of the active surface of a device wafer and attaching a rigid body to the active surface by the adhesive layer. The device wafer is thinned by treating the passive surface of the device wafer. A first backing tape is connected to the passive surface of the device wafer. The outer portion of the rigid body is separated from the central portion of the rigid body and the outer portion of the device wafer is separated from the central portion of the device wafer. The central portion of the rigid body, the outer portion of the device wafer and the outer portion of the rigid body are removed from the first backing tape. The device wafer may be diced into semiconductor chips.
    Type: Application
    Filed: October 7, 2008
    Publication date: April 16, 2009
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Werner Kroeninger, Manfred Kotek, Adolf Koller, Abdul Rahman Mohamed