Patents by Inventor Yukihiko Fukasawa

Yukihiko Fukasawa 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: 7969172
    Abstract: Disclosed is a probing method including, when the probes are configured to make contact with a chip row including four chips continuously arranged in an oblique direction so that the probe card test four chips at a time, finding a first reference oblique chip row extending in the oblique direction and containing a center chip positioned at the center of the wafer and a plurality of first additional oblique chip rows arranged in parallel with the first reference oblique chip row at an upper side of the first reference oblique chip row, and setting contact positions between the probes and the first oblique chip rows wherein the contact positions are positions of the probes obtained by shifting the probes; setting contact positions between the probes and the second oblique chip rows in an opposite direction to a first step; and setting a plurality of index group and test order.
    Type: Grant
    Filed: August 6, 2009
    Date of Patent: June 28, 2011
    Assignee: Tokyo Electron Limited
    Inventors: Hideaki Tanaka, Yukihiko Fukasawa
  • Publication number: 20100033200
    Abstract: Disclosed is a probing method including, when the probes are configured to make contact with a chip row including four chips continuously arranged in an oblique direction so that the probe card test four chips at a time, finding a first reference oblique chip row extending in the oblique direction and containing a center chip positioned at the center of the wafer and a plurality of first additional oblique chip rows arranged in parallel with the first reference oblique chip row at an upper side of the first reference oblique chip row, and setting contact positions between the probes and the first oblique chip rows wherein the contact positions are positions of the probes obtained by shifting the probes; setting contact positions between the probes and the second oblique chip rows in an opposite direction to a first step; and setting a plurality of index group and test order.
    Type: Application
    Filed: August 6, 2009
    Publication date: February 11, 2010
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Hideaki Tanaka, Yukihiko Fukasawa
  • Patent number: 6963208
    Abstract: A probe device includes a supporting member for supporting the probe card having a plurality of channels. Each of the channels has a group of probes which are brought into contact with plural electrode pads of one of objects to be inspected. The probe device further includes a channel information creation unit for creating channel information containing a layout of a group of the plurality of channels and an identification number of each of the channels and transmitting the created channel information to a controller, a channel information memory unit for storing the channel information received from the channel information creation unit, and an object layout memory unit for storing layout information of the objects. The controller performs an inspection of the objects based on the channel information stored in the channel information memory unit and the layout information of the objects stored in the object layout memory unit.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: November 8, 2005
    Assignee: Tokyo Electron Limited
    Inventors: Yukihiko Fukasawa, Hironobu Abe
  • Publication number: 20050140380
    Abstract: A probe device includes a supporting member for supporting the probe card having a plurality of channels. Each of the channels has a group of probes which are brought into contact with plural electrode pads of one of objects to be inspected. The probe device further includes a channel information creation unit for creating channel information containing a layout of a group of the plurality of channels and an identification number of each of the channels and transmitting the created channel information to a controller, a channel information memory unit for storing the channel information received from the channel information creation unit, and an object layout memory unit for storing layout information of the objects. The controller performs an inspection of the objects based on the channel information stored in the channel information memory unit and the layout information of the objects stored in the object layout memory unit.
    Type: Application
    Filed: January 21, 2005
    Publication date: June 30, 2005
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Yukihiko Fukasawa, Hironobu Abe
  • Patent number: 6111421
    Abstract: A probe method is disclosed which inspects the electrical characteristics of an object to be inspected (wafer W) by bringing the electrodes of the object to be inspected placed on a main chuck and probes of a probe card into contact with each other. The main chuck is movable in the X, Y, Z, and .theta. directions and heated to a predetermined inspection temperature. The main chuck retreats to a position separated from the inspection position during high-temperature inspection. The time (retreat time) during which the main chuck stays retreated is calculated by a retreat time calculating mechanism. A preheat execute determination mechanism determines whether the probe card and probes are to be preheated on the basis of the retreat time. When it is determined that preheating is necessary, a preheat time calculation mechanism calculates the preheat execute time. Preheating is executed during the preheat execute time determined by a preheat end determination mechanism, and misalignment of the probes is corrected.
    Type: Grant
    Filed: October 8, 1998
    Date of Patent: August 29, 2000
    Assignee: Tokyo Electron Limited
    Inventors: Shigeaki Takahashi, Yukihiko Fukasawa
  • Patent number: 4945424
    Abstract: Video camera apparatus includes image pick-up equipment, video recording and/or reproducing apparatus, display equipment, and an electronic view finder. In the apparatus, independent power on-off switches are provided in the image pick-up equipment and the video recording and/or reproducing equipment, respectively, and a selecting switch is provided for selecting a television tuner or an external input, and an input of the video recording and/or reproducing equipment. Switching on-off (operation-turn off) of the display equipment or the electronic view finder is automatically controlled in accordance with operation of these switches.
    Type: Grant
    Filed: February 1, 1989
    Date of Patent: July 31, 1990
    Assignee: Casio Computer Co., Ltd.
    Inventors: Keiichiro Hiroki, Yukihiko Fukasawa, Ken Yamauchi