With Poking During Delaminating (e.g., Jabbing Release Sheet Backing To Remove Wafer, Etc.) Patents (Class 156/932)
  • Patent number: 9039867
    Abstract: A method for detaching a semiconductor chip from a foil uses a die ejector comprising plates having a straight supporting edge and an L-shaped supporting edge comprises: lifting of the plates to a height H1 above the surface of a cover plate; lowering of a first pair of plates with L-shaped supporting edge; optionally, lowering of a second pair of plates with L-shaped supporting edge; lifting of the plates that have not yet been lowered to a height H2>H1; staggered lowering of plates that have not yet been lowered, with at least one or several plates not being lowered; optionally, lowering of the plates that have not yet been lowered to a height H3<H2; lowering of the plates until all plates are lowered, and moving away of the chip gripper, wherein the chip gripper touches the semiconductor chip before lowering the last three plates.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: May 26, 2015
    Assignee: Besi Switzerland AG
    Inventors: Ernst Barmettler, Fabian Hurschler, Brian Pulis
  • Patent number: 9028649
    Abstract: Provided is a semiconductor die pick-up apparatus including a stage, a suction opening, a cover that opens and closes a suction opening, and projections and primary holes arranged at a circumferential edge of the suction opening and project from a contact surface. When picking up a semiconductor die, in a state in which at least a portion of a contour of the semiconductor die sticks out from the projections toward the outer circumference of the stage, a retaining sheet at the portion sticking out from the primary holes is suctioned, a tip end of the cover is caused to advance upward, the cover is caused to slide while pushing the retaining sheet and the semiconductor die upward to open the suction opening sequentially, the opened suction opening is caused to suction the retaining sheet sequentially to separate the retaining sheet from the semiconductor die.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: May 12, 2015
    Assignee: Shinkawa Ltd.
    Inventors: Motoki Nakazawa, Shinichi Sasaki, Akiko Fujii
  • Patent number: 8932432
    Abstract: A substrate separating method includes: holding, in a predetermined position, a substrate sandwiched between a first holder and a second holder opposed to each other; and relatively moving the first holder and the second holder while the substrate is held in the predetermined position. In holding the substrate, the substrate may be held in the predetermined position by effecting a pressurizing force or a suction force onto the substrate. Also in holding the substrate, the substrate may be held in contact with one of the first holder and the second holder.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: January 13, 2015
    Assignee: Nikon Corporation
    Inventors: Keiichi Tanaka, Masahiro Yoshihashi
  • Patent number: 8919412
    Abstract: A debonder apparatus for debonding two via an adhesive layer temporary bonded wafers includes a top chuck assembly, a bottom chuck assembly, a static gantry supporting the top chuck assembly, an X-axis carriage drive supporting the bottom chuck assembly, and an X-axis drive control. The top chuck assembly includes a heater and a wafer holder. The X-axis drive control drives horizontally the bottom chuck assembly from a loading zone to a process zone under the top chuck assembly and from the process zone back to the loading zone. A wafer pair comprising a carrier wafer bonded to a device wafer via an adhesive layer is placed upon the bottom chuck assembly at the loading zone oriented so that the unbonded surface of the device wafer is in contact with the bottom assembly and is carried by the X-axis carriage drive to the process zone under the top chuck assembly and the unbonded surface of the carrier wafer is placed in contact with the top chuck assembly.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: December 30, 2014
    Assignee: Suss Microtec Lithography, GmbH
    Inventors: Gregory George, Hale Johnson, Patrick Gorun, Emmett Hughlett, James Hermanowski, Matthew Stiles
  • Patent number: 8905111
    Abstract: A device for releasing an interconnect layer that provides a connection between a carrier and a wafer which forms a carrier-wafer combination. The device includes rotation means for rotation of the carrier-wafer combination in a release position, and a connection release means for providing an immersion bath that receives the carrier-wafer combination.
    Type: Grant
    Filed: August 8, 2013
    Date of Patent: December 9, 2014
    Assignee: EV Group GmbH
    Inventor: Erich Thallner
  • Patent number: 8778133
    Abstract: A method of peeling a protective tape, includes the steps of mounting a wafer on a stage, the wafer having the protective tape adhered thereto so that the protective tape overlaps only a portion of a notch of the wafer, attaching a peeling adhesive tape to the protective tape, projecting a lift pin from the stage so that the portion of the protective tape which overlaps the notch is raised by a top surface of the lift pin, and with the protective tape raised by the lift pin, pulling the peeling adhesive tape so as to peel the protective tape from the wafer. The top surface of the lift pin has a shape that allows the top surface to raise the portion of the protective tape which overlaps the notch.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: July 15, 2014
    Assignee: Mitsubishi Electric Corporation
    Inventor: Shoichi Kuga
  • Patent number: 8715457
    Abstract: The detachment and removal of a semiconductor chip from a foil occurs in accordance with the invention in three phases. In the first phase there is a partial detachment of the semiconductor chip from the foil with mechanical means, but without the participation of a chip gripper. In the second phase the semiconductor chip is further detached from the foil, with the semiconductor chip being held by the chip gripper. In the third phase the chip gripper is lifted and moved away.
    Type: Grant
    Filed: November 3, 2009
    Date of Patent: May 6, 2014
    Assignee: Esec AG
    Inventor: Stefan Behler
  • Patent number: 8714227
    Abstract: A chip sorting apparatus comprising a chip holder comprising a first surface and an second surface opposite to the first surface; a wafer comprising a first chip disposed on a first position of the first surface; a first chip receiver comprising a third surface and an fourth surface opposite to the third surface, wherein the third surface is opposite to the first surface; a pressurization device making the first chip and the third surface of the first chip receiver adhered to each other through pressuring the second surface at where corresponding to the first position; and a separator decreasing the adhesion between the first chip and the first surface.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: May 6, 2014
    Assignee: Epistar Corporation
    Inventors: Chen-Ke Hsu, Liang-Sheng Chi, Chun-Chang Chen, Win-Jim Su, Hsu-Cheng Lin, Mei-Ling Tsai, Yi Lung Liu, Chen Ou
  • Patent number: 8603294
    Abstract: Method for stripping a wafer from a carrier that is connected to the wafer by an interconnect layer. The method includes the steps of accommodating the carrier-wafer combination on a receiving means, breaking the connection provided by the interconnect layer by a connection release means, and stripping the wafer from the carrier, or stripping the carrier from the wafer by stripping means.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: December 10, 2013
    Assignee: EV Group GmbH
    Inventor: Erich Thallner
  • Patent number: 8561664
    Abstract: An object of the present invention is to provide a pickup device that can securely peel a die or to provide a reliable die bonder or a pickup method using the pickup device. To achieve the object, the present invention is provided with a characteristic that when a die to be peeled out of plural dies (semiconductor chips) applied to a dicing film is thrust up and is peeled from the dicing film, the dicing film in a predetermined part in a circumference of the die is thrust up and a peeling starting point is formed, the dicing film in a part except the predetermined part is thrust up, and the die is peeled from the dicing film.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: October 22, 2013
    Assignee: Hitachi High-Tech Instruments Co., Ltd.
    Inventors: Hiroshi Maki, Naoki Okamoto
  • Patent number: 8499813
    Abstract: A system is disclosed for ejecting a semiconductor die from a tape to which the die is affixed during the wafer dicing process. In embodiments, the system includes an ejector tool including a support table, ejector pins and a pick-up arm. The support table is connected to a vacuum source for creating a negative pressure at an interface between the tape and support table. The support table further includes an aperture with one or more chamfered sidewalls. The vacuum source is connected to the aperture so that, upon placement of the tape on the support table with a die centered over the aperture, the vacuum source pulls a portion of the tape around the edges of the semiconductor die away from the die and into the space created by the chamfered edges.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: August 6, 2013
    Assignee: SanDisk Technologies Inc.
    Inventors: Jack Chang Chien, King Hoo Ong, Weili Wang, Li Wang, XingZhi Liang, Shicai Ma
  • Patent number: 8470131
    Abstract: Apparatus and a method for operating the apparatus to remove at least one chip-type semiconductor component from an adhesive film. The method comprises: arranging a lifting device with respect to the film, wherein a contact region of the lifting device bears against a second main surface of the film, opposite a chip-type semiconductor component that is arranged on a first main surface and is to be lifted off. Then, applying either a constant vacuum to a plurality of suction cutouts of the lifting device, by means of an assigned vacuum regulating device, or applying different values of the vacuum for different suction cutouts or groups of suction cutouts. Next, partially deforming the film in the contact region by using lifting means arranged in assigned cutouts of the lifting device to lift the film. Finally, using a removal device to remove the at least one semiconductor component from the film.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: June 25, 2013
    Assignee: Semikron Elektronik GmbH & Co., KG
    Inventor: Armin Studt
  • Patent number: 8470130
    Abstract: A die detachment apparatus for partially delaminating a die from an adhesive tape on which it is mounted comprises a cover having a support surface that is operative to support the adhesive tape, the support surface including a set of cover holes. A movable pin chuck is positioned below the support surface and includes a set of pin holes that are arranged coaxially with the cover holes. The movable pin chuck is configured for detachably inserting a set of pins in a first desired configuration on some of the pin holes, and the pins are also operable to be relocated on the pin chuck to form another desired configuration. The pins are operative to protrude from the cover by passing through the cover holes to contact and lift the die.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: June 25, 2013
    Assignee: ASM Assembly Automation Ltd
    Inventors: Chi Ming Chong, Jin Hui Meng, Man Wai Chan, Yuk Cheung Au
  • Patent number: 8443864
    Abstract: Device and method for stripping a wafer from a carrier that is connected to the wafer by an interconnect layer. The device includes a receiving means for accommodating the carrier-wafer combination consisting of the carrier and the wafer, a connection release means for breaking the connection provided by the interconnect layer between the carrier and the wafer, and stripping means for stripping the wafer from the carrier, or for stripping the carrier from the wafer. The connection release means operates in a temperature range from 0° to 350° C., especially from 10° to 200° C., preferably from 20° to 80° C., and more preferably at ambient temperature. The method includes the steps of accommodating the carrier-wafer combination on a receiving means, breaking the connection provided by the interconnect layer by a connection release means, and stripping the wafer from the carrier, or stripping the carrier from the wafer by stripping means.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: May 21, 2013
    Assignee: EV Group GmbH
    Inventor: Erich Thallner
  • Patent number: 8221583
    Abstract: A semiconductor system for peeling semiconductor chips from tape, comprising: providing an outer housing having an aperture on a top thereof; providing a magnet with a needle base extension; providing needles magnetically held to the magnet; applying a vacuum through the aperture to hold an adhesive material to the outer housing; and extending the needles through the aperture in the outer housing.
    Type: Grant
    Filed: January 22, 2008
    Date of Patent: July 17, 2012
    Assignee: Stats Chippac Ltd.
    Inventors: Gab Yong Min, Dong Hyong Lee, Jung Ho Kim, SeungYun Ahn
  • Patent number: 8192578
    Abstract: In the pickup apparatus wherein a chip adhered on a sheet is sucked and held by a picking nozzle and then picked up by the nozzle, a sheet push-up member configured by forming flexible elastic material such as rubber in a spherical shape is attached on the abutment supporting surface of the upper surface of a tool, then the push-up surface of the sheet push-up member is followed in a flat surface state along the lower surface of the sheet and abutted thereto in the moving down state of the picking nozzle, and then the push-up surface pushes up the lower surface of the sheet while being deformed in a upwardly protruded curved surface shape in the moving up operation where the picking nozzle moves up together with the chip. Thus, the chip can be released from the sheet from the outer peripheral side of the chip.
    Type: Grant
    Filed: October 13, 2006
    Date of Patent: June 5, 2012
    Assignee: Panasonic Corporation
    Inventors: Hiroshi Haji, Mitsuru Ozono, Teruaki Kasai, Kazuhiro Noda
  • Patent number: 8141612
    Abstract: A die detachment device for delaminating a die which is mounted at a position on an adhesive film comprises a plurality of movable plates having quadrilateral-shaped contact surfaces which are arranged adjacent to one another. The plurality of movable plates comprises an intermediate movable plate and outer movable plates on opposite sides of the intermediate movable plate. The contact surfaces of the movable plates together form a combined contact surface for supporting the adhesive film at the position of the die, each movable plate being movable relative to the other movable plates towards and away from the die.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: March 27, 2012
    Assignee: ASM Assembly Automation Ltd
    Inventors: Man Wai Chan, Yuk Cheung Au, Kwok Wai Wong, Chi Ming Chong
  • Patent number: 8092645
    Abstract: During detachment of a die from an adhesive tape, the inner and outer portions of a first side of the die which is in contact with the adhesive tape is supported with a support surface. A collet contacts the inner and outer portions of a second side of the die opposite to the first side. Support is withdrawn from the outer portion of the die such that the outer portion of the second side of the die bends away from the collet while the support surface only supports the inner portion of the die. Vacuum suction from the collet is applied to attract the outer portion of the die towards the collet and the vacuum suction pressure is monitored until a threshold pressure is reached indicating that the outer portion of the die is contacting the collet. Thereafter, the collet is lifted while holding the die with vacuum suction to completely separate the die from the adhesive tape.
    Type: Grant
    Filed: February 5, 2010
    Date of Patent: January 10, 2012
    Assignee: ASM Assembly Automation Ltd
    Inventors: Siu Ping Yip, Chi Ming Chong, Man Wai Chan, Kwok Wai Wong