Patents by Inventor Hendra Sudin

Hendra Sudin 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: 7400156
    Abstract: A vertical probe device includes two guide members arranged in a stack manner and defining therebetween an accommodation chamber, a probe holder plate disposed between the guide members, and a plurality of probes inserted through the guide plates and the probe holder plate in such a manner that the probes are flexible within the accommodation chamber. One of the guide plates has at least one through hole. The probe holder plate is slightly moveable in horizontal and vertical directions but fixable to one of the guide plats under a force applied through the at least one through hole to the probe holder plate while the other of the guide plates is removed, thereby preventing damage of the probes or movement of the probes during a maintenance work.
    Type: Grant
    Filed: September 6, 2006
    Date of Patent: July 15, 2008
    Assignee: MJC Probe Incorporation
    Inventors: Shih-Chang Wu, Hendra Sudin, Hsin-Hung Lin, Ming-Chi Chen
  • Patent number: 7368928
    Abstract: A vertical-type probe card includes a circuit board, which has signal circuits and grounding circuits arranged in such a manner that each signal circuit is disposed in parallel and adjacent to one grounding circuit and kept a predetermined distance from the grounding circuit, and a probe assembly, which is arranged at the bottom side of the circuit board and has an upper guide plate, a lower guide plate, a conducting layer provided on the lower guide plate, a plurality of signal probes respectively electrically connected to the signal circuits and adjacent to a plurality of compensation probes, and at least one grounding probe electrically connected to the grounding circuits in a manner that the signal, compensation and grounding probes are vertically inserted through the upper and lower guide plates, and the conducting layer is conducted with the compensation probe and the grounding probe while electrically insulated to the signal probe.
    Type: Grant
    Filed: August 29, 2006
    Date of Patent: May 6, 2008
    Assignee: MJC Probe Incorporation
    Inventors: Hsin-Hung Lin, Shih-Cheng Wu, Wei-Cheng Ku, Chien-Liang Chen, Ming-Chi Chen, Hendra Sudin
  • Publication number: 20080054918
    Abstract: A vertical-type probe card includes a circuit board, which has signal circuits and grounding circuits arranged in such a manner that each signal circuit is disposed in parallel and adjacent to one grounding circuit and kept a predetermined distance from the grounding circuit, and a probe assembly, which is arranged at the bottom side of the circuit board and has an upper guide plate, a lower guide plate, a conducting layer provided on the lower guide plate, a plurality of signal probes respectively electrically connected to the signal circuits and adjacent to a plurality of compensation probes, and at least one grounding probe electrically connected to the grounding circuits in a manner that the signal, compensation and grounding probes are vertically inserted through the upper and lower guide plates, and the conducting layer is conducted with the compensation probe and the grounding probe while electrically insulated to the signal probe.
    Type: Application
    Filed: August 29, 2006
    Publication date: March 6, 2008
    Applicant: MJC PROBE INCORPORATION
    Inventors: Hsin-Hung Lin, Shih-Cheng Wu, Wei-Cheng Ku, Chien-Liang Chen, Ming-Chi Chen, Hendra Sudin
  • Publication number: 20080054919
    Abstract: A vertical probe device includes two guide members arranged in a stack manner and defining therebetween an accommodation chamber, a probe holder plate disposed between the guide members, and a plurality of probes inserted through the guide plates and the probe holder plate in such a manner that the probes are flexible within the accommodation chamber. One of the guide plates has at least one through hole. The probe holder plate is slightly moveable in horizontal and vertical directions but fixable to one of the guide plats under a force applied through the at least one through hole to the probe holder plate while the other of the guide plates is removed, thereby preventing damage of the probes or movement of the probes during a maintenance work.
    Type: Application
    Filed: September 6, 2006
    Publication date: March 6, 2008
    Applicant: MJC PROBE INCORPORATION
    Inventors: Shih-Chang Wu, Hendra Sudin, Hsin-Hung Lin, Ming-Chi Chen
  • Patent number: 7154284
    Abstract: The probe card comprises a primary circuit board with a plurality of signal contacts, a probe assembly including a plurality of probes electrically connected to the signal contact and an adjusting assembly for adjusting the coplanarity between the probe assembly and a device under test. The adjusting assembly comprises a groove plate with a plurality of grooves, a wedge positioned in the groove, at least one adjusting pin connecting the wedge and the probe assembly and at least one screw positioned at one side of the wedge. The wedge comprises an inclined surface, and one end of the adjusting pin contacts the inclined surface of the wedge and the other end contacts the probe assembly. The circuit probe card moves the wedge laterally to further move the adjusting pin upwards and downwards, so that to the coplanarity between the probe assembly and the device under test can be adjusted.
    Type: Grant
    Filed: January 6, 2005
    Date of Patent: December 26, 2006
    Assignee: MJC Probe Incorporation
    Inventors: Horng-Kuang Fan, Hendra Sudin
  • Publication number: 20060170440
    Abstract: A vertical probe card includes a circuit board and a probe set having a base and a plurality of probes provided at the base and electrically connected to the circuit board. Each probe has a foot, a tip and a middle body portion connected between the foot and the tip. The middle body portion has a coefficient of elasticity smaller than that of the base or the foot so that the middle body portion is forced to deform relative to the base when the tip touched a device under test.
    Type: Application
    Filed: January 5, 2006
    Publication date: August 3, 2006
    Applicant: MJC PROBE INCORPORATION
    Inventor: Hendra Sudin
  • Patent number: 7053636
    Abstract: The present probe device comprises an insulative body, at least one supporter positioned in the insulative body, a probe positioned substantially at the center of the supporter, and a conductive wire positioned in the insulative body and electrically connected to the supporter. The supporter can be a helical spring, which connects to the probe with its inner end and to the insulative body with its outer end. In addition, the supporter may include a plurality of beams, which connects to the probe at one end and to the insulative body at the other end. The beams are positioned in a radial manner with the probe at the center, and the included angle between two adjacent beams is substantially the same. The supporter can further comprise at least one ring connecting the plurality of beams.
    Type: Grant
    Filed: May 25, 2004
    Date of Patent: May 30, 2006
    Assignee: MJC Probe Incorporation
    Inventor: Hendra Sudin
  • Publication number: 20060022686
    Abstract: The probe card comprises a primary circuit board with a plurality of signal contacts, a probe assembly including a plurality of probes electrically connected to the signal contact and an adjusting assembly for adjusting the coplanarity between the probe assembly and a device under test. The adjusting assembly comprises a groove plate with a plurality of grooves, a wedge positioned in the groove, at least one adjusting pin connecting the wedge and the probe assembly and at least one screw positioned at one side of the wedge. The wedge comprises an inclined surface, and one end of the adjusting pin contacts the inclined surface of the wedge and the other end contacts the probe assembly. The circuit probe card moves the wedge laterally to further move the adjusting pin upwards and downwards, so that to the coplanarity between the probe assembly and the device under test can be adjusted.
    Type: Application
    Filed: January 6, 2005
    Publication date: February 2, 2006
    Applicant: MJC PROBE INCORPORATION
    Inventors: Horng-Kuang Fan, Hendra Sudin
  • Publication number: 20050200375
    Abstract: The present probe device comprises an insulative body, at least one supporter positioned in the insulative body, a probe positioned substantially at the center of the supporter, and a conductive wire positioned in the insulative body and electrically connected to the supporter. The supporter can be a helical spring, which connects to the probe with its inner end and to the insulative body with its outer end. In addition, the supporter may include a plurality of beams, which connects to the probe at one end and to the insulative body at the other end. The beams are positioned in a radial manner with the probe at the center, and the included angle between two adjacent beams is substantially the same. The supporter can further comprise at least one ring connecting the plurality of beams.
    Type: Application
    Filed: May 25, 2004
    Publication date: September 15, 2005
    Applicant: MJC PROBE INCORPORATION
    Inventor: Hendra Sudin