Traveling-inker Machines Patents (Class 101/123)
  • Publication number: 20040168756
    Abstract: A compliant marking tool for attachment to a fiber placement machine that is capable of marking detail locations on a work piece positioned on the fiber placement machine. The marking tool has a flexible member that is configured and adapted to bow and twist in response to the marking tool contacting the work piece. A holder is pivotably connected to the flexible member. A marking member is positioned in the holder and is capable of moving within the holder. The flexing of the flexible member along with the pivoting of the holder and the movement of the marking member allow the marking tool to follow the contours of the work piece and mark detail locations without damaging or at least minimizing the potential of damaging the work piece.
    Type: Application
    Filed: March 9, 2004
    Publication date: September 2, 2004
    Inventors: Donald A. Anderson, Brice A. Johnson, James B. Anderson
  • Patent number: 6776090
    Abstract: A circuit board with high quality is provided by preventing the falling of paste which comes around to the squeegee complementary angle side during the pattern printing or paste filling by the squeegeeing method. While lowering, the squeegee is passed through the inclined portion of a paste removing section (3) provided on a mask (2) before pattern printing or paste filling, whereby the paste on the non-printing side (complementary angle) of the squeegee can be removed; thus, a circuit board superior in quality is obtained.
    Type: Grant
    Filed: January 3, 2002
    Date of Patent: August 17, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Toshiaki Takenaka, Toshikazu Kondo, Mitsunori Maeda, Hiroshi Tahara, Shinji Nakamura, Yuichiro Sugita
  • Patent number: 6776089
    Abstract: A printing apparatus that includes a table and screen plate positioned facing each other. A screen sealing unit is provided to ensure that a relative hermetic seal is achieved between the screen plate and the table. The sealing unit and table are movable, the sealing unit being movable along the table to adjust for various work pieces utilized in the screen. A gas is provided between the sealed table and screen plate to aid in printing.
    Type: Grant
    Filed: July 23, 2002
    Date of Patent: August 17, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventor: Shinji Kanda
  • Publication number: 20040149152
    Abstract: A screen printing manual repetition system semi-automates use of a screen with a manual printing press. The screen has a screen frame and a screen mesh. The manual repetition system (MRS) has an MRS frame mountable to the screen frame, a track system, and a height adjustor configured to adjust the height of the track system relative to the MRS frame. A squeegee has a squeegee frame with a blade, guide members configured to guide the squeegee through the track system, and an angle adjustor configured to adjust the angle of the blade relative to the screen mesh during operation.
    Type: Application
    Filed: January 23, 2004
    Publication date: August 5, 2004
    Inventor: Michael S. Edson
  • Publication number: 20040149151
    Abstract: A screen-printing apparatus for printing creamy solder paste on a substrate by attaching a screen mask to the substrate. A laser-measuring device mounted in the apparatus measures the top surface of the screen mask at a printing position and the top of the substrate at a substrate-measurement position by three-dimensional measurement, and detects a shape of the substrate or the screen mask, and determines whether or not they are acceptable. After screen printing is completed, the substrate and the screen mask undergo a printing inspection where their shapes are inspected. This provides not only inspection data of the printing results but also data for identifying the causes of print failures. As a result, the screen-printing apparatus, which has high-printing accuracy and can prevent printing failures from occurring, is provided.
    Type: Application
    Filed: January 20, 2004
    Publication date: August 5, 2004
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kimiyuki Yamasaki, Michinori Tomomatsu, Seikoh Abe, Seiichi Miyahara, Yuji Otake, Takahiro Fukagawa, Kunihiko Tokita, Masayuki Mantani, Minoru Murakami
  • Publication number: 20040139869
    Abstract: Cream solder stored in a squeegee head is pressurized by a pressurizing plate, and the squeegee head is slid on a mask plate, so that the cream solder is printed onto a substrate via pattern apertures. This is done by a screen printing apparatus, in which pressurized solder is accommodated, and the solder is brought into contact with a surface of the mask plate via an opening formed on a lower face of the cell. A rectifier is disposed in the cell for blocking the cream solder from flowing into a specific area just above the opening. This structure allows the solder to flow into the opening in a slant direction, and causes the solder to roll. This mechanism prevents the solder from being hardened due to staying stagnant just above the opening, and thus prevents defective printings.
    Type: Application
    Filed: January 12, 2004
    Publication date: July 22, 2004
    Inventors: Seiichi Miyahara, Kimiyuki Yamasaki, Takahiro Fukagawa, Kunihiko Tokita
  • Patent number: 6755127
    Abstract: It is possible to obtain a screen printing method that may assure excellent printing qualities since the screen printing method of the present invention includes: (A) sliding a squeegee head with paste stored in the squeegee head on a mask plate, while the past is pressurized, and printing the paste on a substrate through pattern holes of the mask plate, (B) at least one step of (b) separating the squeegee head with the paste stored therein from the mask plate, and (e) sliding the squeegee head on the mask plate for a pre-squeezing purpose before the step (A). The step of separating the squeegee head from the mask plate includes the steps of (1) discontinuing the pressure application to the paste stored in the squeegee head, (2) horizontally moving the squeegee head by a predetermined distance while the bottom end portion of the squeegee head is abutted on the mask plate in a state of the pressure application being discontinued, and (3) moving the squeegee head upward off from the mask plate.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: June 29, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Seiichi Miyahara, Takahiro Fukagawa, Minoru Murakami, Michinori Tomomatsu, Seiko Abe, Kimiyuki Yamasaki, Kunihiko Tokita
  • Patent number: 6749996
    Abstract: The present invention is a puff heat transfer, a puff transfer composition, and a method of making a puff transfer composition. The puff transfer composition, i.e., ink, is actually loaded with the color. In particular, the transfer composition comprises effective amounts of a transfer base material, at least one pigment concentrate, and a puff base material. The transfer base material and the pigment concentrate may be mixed together and then loaded into the puff base material to form the transfer composition. The transfer composition may be deposited on a transfer sheet to make the heat transfer. The transfer sheet may be a substrate that is treated with QUILLON™. By using a substrate sheet that is treated with QUILLON™, the puff of the present invention has an improved, velvet-like feel when the transfer sheet is removed.
    Type: Grant
    Filed: September 21, 2001
    Date of Patent: June 15, 2004
    Assignee: Impulse Wear, Inc.
    Inventors: Christopher Roberts, Lawrence Levine
  • Patent number: 6748289
    Abstract: The present invention relates to a control method for improving the productivity of a screen printer for an electronics-mounting machine. Thus, a screen printer according to this invention uses a recognition camera to inspect the results of printing of a circuit board concurrently with a cleaning operation of the rear surface of a screen, thereby enabling the effective use of time. This screen printer also enables cream solder to be automatically supplied to reduce the operation time by determining whether the next screen to be used is unused. During automatic screen replacement, this screen printer enables a desired screen stored in the corresponding stocker to be automatically specified in order to replace the current screen in response to a selected NC program.
    Type: Grant
    Filed: January 22, 2001
    Date of Patent: June 8, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Noboru Nishikawa, Akihiko Wachi, Hiroyoshi Saito
  • Patent number: 6745687
    Abstract: Screen printing to an edge of an object without the flow of print ilk over the edge and to a supporting platen is realized by applying a flow of gas from the platen over the edge of the object and opposing the flow of print ink. The platen can have a support surface including a groove or a plurality of holes arranged to match the edge of the wafer. The wafer can include a semiconductor wafer such as a photovoltaic cell, and the gas can include air, nitrogen, or an inert gas.
    Type: Grant
    Filed: July 31, 2003
    Date of Patent: June 8, 2004
    Assignee: SunPower Corporation
    Inventor: Neil Kaminar
  • Publication number: 20040094051
    Abstract: A manual ink applicator for use in screen printing which uses a squeegee that is mounted on a pair of pivoting links. The links in turn are mounted on a pair of shuttle blocks. The pivoting links raise the squeegee from the screen surface when the shuttle blocks make contact with the top and bottom ends of the screen frame or adjustable stops mounted to the sides of the screen frame, and the operator continues in the same direction as the squeegee was moving just prior to the blocks making said contact. The operator then changes the direction of movement of the squeegee. There is a handle and a brace attached to the shaft. The user places his or her arm through the brace and grasps the handle. By applying the force to the squeegee through the handle, brace and shaft, the force to the squeegee is substantially greater than if just applied to the squeegee by the user's hands. This minimizes user fatigue and allows a greater and more uniform force to be applied to the squeegee than by previous manual devices.
    Type: Application
    Filed: November 15, 2002
    Publication date: May 20, 2004
    Inventor: Kenneth I. Marek
  • Patent number: 6736056
    Abstract: A manual ink applicator for use in screen printing which uses a squeegee that is mounted on a pair of pivoting links. The links in turn are mounted on a pair of shuttle blocks. The pivoting links raise the squeegee from the screen surface when the shuttle blocks make contact with the top and bottom ends of the screen frame or adjustable stops mounted to the sides of the screen frame, and the operator continues in the same direction as the squeegee was moving just prior to the blocks making said contact. The operator then changes the direction of movement of the squeegee. There is a handle and a brace attached to the shaft. The user places his or her arm through the brace and grasps the handle. By applying the force to the squeegee through the handle, brace and shaft, the force to the squeegee is substantially greater than if just applied to the squeegee by the user's hands.
    Type: Grant
    Filed: November 15, 2002
    Date of Patent: May 18, 2004
    Assignee: A Marek Ken Company
    Inventor: Kenneth I. Marek
  • Patent number: 6736180
    Abstract: A compliant marking tool for attachment to a fiber placement machine that is capable of marking detail locations on a work piece positioned on the fiber placement machine. The marking tool has a flexible member that is configured and adapted to bow and twist in response to the marking tool contacting the work piece. A holder is pivotably connected to the flexible member. A marking member is positioned in the holder and is capable of moving within the holder. The flexing of the flexible member along with the pivoting of the holder and the movement of the marking member allow the marking tool to follow the contours of the work piece and mark detail locations without damaging or at least minimizing the potential of damaging the work piece.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: May 18, 2004
    Assignee: The Boeing Company
    Inventors: Donald A. Anderson, Brice A. Johnson, James B. Andersen
  • Patent number: 6736058
    Abstract: Method for screen printing a continuous structure on a substrate wherein the screen printed structure extends from at least a first level to at least a second level. The disclosed method is particularly suitable for the fabrication of microelectronic devices and components thereof including the fabrication of field emission display devices. Preferably, a print screen of a preferred thickness having a preconfigured print pattern formed therethrough, in combination with a squeegee having a hardness within a preferred range, are used to force a screen printable substance onto a substrate while maintaining a portion of the print screen within a preferred reference angle. The resulting screen printed structure extends from at least one lower level to at least one upper level in a continuous “uphill” manner.
    Type: Grant
    Filed: May 21, 2002
    Date of Patent: May 18, 2004
    Assignee: Micron Technology, Inc.
    Inventors: John M. Michiels, Darryl M. Stansbury
  • Patent number: 6729231
    Abstract: A workpiece carrier positioning structure used in an auto printing and drying machine for controlling positioning of a workpiece carrier fixedly carried on a carriage sliding in a track, for enabling the workpiece carrier to be positively maintained in a printing/drying position, in which the workpiece carrier is transversely slidably mounted on transverse axles at the carriage and supported between compression springs on the transverse axles, and a longitudinal slide is controlled by an air cylinder to move a notched stop block into engagement with a roller at the bottom side of the workpiece carrier to hold the workpiece carrier in the printing/drying position when the carriage approached.
    Type: Grant
    Filed: October 7, 2002
    Date of Patent: May 4, 2004
    Inventor: Chin-Wang Lan
  • Publication number: 20040079244
    Abstract: A screen printing apparatus prints cream solder through a pattern hole of a mask plate, to which a substrate is brought into contact, by sliding a squeegee head. The mask plate, to which the substrate is positioned, is three-dimensionally measured from its above, thereby detecting a positioned status. Based on the detection result, the positioned status is corrected by driving a substrate-positioning-section. As a result, the substrate is always exactly positioned to the mask plate, and quality print is thus maintainable.
    Type: Application
    Filed: June 20, 2003
    Publication date: April 29, 2004
    Inventors: Kimiyuki Yamasaki, Michinori Tomomatsu, Seikoh Abe, Seiichi Miyahara
  • Patent number: 6725769
    Abstract: An application device for applying viscous or paste fluid material to a surface therebeneath and having a fluid outlet aperture in its lower region and including a sealing gasket or foil for sealing the outlet aperture against the surface. The gasket or foil is formed from a sheet of flexible material with an uninterrupted or continuous, non-apertured outer part extending around the periphery of the outlet aperture and surrounding an inner aperture or apertured inner region of the gasket or foil.
    Type: Grant
    Filed: March 7, 2001
    Date of Patent: April 27, 2004
    Assignee: Dek International GmbH
    Inventor: David Godfrey Williams
  • Publication number: 20040069165
    Abstract: To keep a printing paste, which is most influential to a printing performance, always in a uniform state, carry out printing at a high accuracy and in a stable manner, and use an expensive paste with no waste, there is provided a printing paste automatic supplying apparatus which supplies a predetermined amount of printing paste (5) by charging the printing paste (5) in a printing paste supply bag (15) and pressurizing the printing paste (5), provided with a mechanism for opening and closing a printing paste supply port (7) by bringing a printing paste supply plate (6) having the printing paste supply port (7) into contact with the back surface side of a squeegee (4) and vertically moving them, and further provided with a scraper (9) which scrapes up the printing paste on a screen printing plate (3).
    Type: Application
    Filed: July 23, 2003
    Publication date: April 15, 2004
    Inventors: Takehiko Murakami, Shunji Murano, Takamasa Miyata
  • Patent number: 6715414
    Abstract: A printing bridge for silk-screen printing machines has at least one mobile transversal support beam and a doctor retaining and adjusting element slidably attached to the beam. In order to deliver fluid to the doctor retaining and adjusting element, the doctor retaining and attaching element includes a fluid driven actuator connected by tubes to a duct in a section bar on the transversal support beam.
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: April 6, 2004
    Assignee: Argon HT S.r.l.
    Inventor: Harutiun Manoukian
  • Patent number: 6715415
    Abstract: A screen printing method and apparatus are capable of maintaining a constant attack angle between a squeegee and a mask plate, regardless of the surface condition of the mask plate. A squeegee head, including a pair of squeegees, is rotatably supported by a retainer with respect to a horizontal axis that is at a right angle to a squeegeeing direction. The rotatably supported squeegee head is pushed by a cylinder against the mask plate. Accordingly, the attack angle is kept constant to improve the printing quality even if a substrate has a curved portion.
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: April 6, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kimiyuki Yamasaki, Seiko Abe, Seiichi Miyahara, Michinori Tomomatsu
  • Patent number: 6715413
    Abstract: A screen-printing apparatus for printing creamy solder paste on a substrate by attaching a screen mask to the substrate. A laser-measuring device mounted in the apparatus measures the top surface of the screen mask at a printing position and the top of the substrate at a substrate-measurement position by three-dimensional measurement, and detects a shape of the substrate or the screen mask, and determines whether or not they are acceptable. After screen printing is completed, the substrate and the screen mask undergo a printing inspection where their shapes are inspected. This provides not only inspection data of the printing results but also data for identifying the causes of print failures. As a result, the screen-printing apparatus, which has high-printing accuracy and can prevent printing failures from occurring, is provided.
    Type: Grant
    Filed: May 9, 2001
    Date of Patent: April 6, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kimiyuki Yamasaki, Michinori Tomomatsu, Seikoh Abe, Seiichi Miyahara, Yuji Otake, Takahiro Fukagawa, Kunihiko Tokita, Masayuki Mantani, Minoru Murakami
  • Patent number: 6711999
    Abstract: A screen printing apparatus in which a squeegee head 13 is moved on a mask plate 12 thereby to print paste on a substrate through pattern holes 12a, slide contact portions 37A and 37B form respectively front and rear walls in the squeegeeing direction of a printing space 35 which reserves cream solder 5 therein and makes the cream solder contact with the surface of the mask plate 12 through an opening portion formed at the lower surface thereof. Each of the slide-contact portions is configured by a partition plate 39 for partitioning between the printing space 35 and the outside and a filling block 38 having a filling surface 38a which forms an acute angle with respect to the surface of the mask plate 12. In the squeegeeing operation, the filling surface 38a rolls the cream solder 5. Thus, the cream solder 5 can be filled into the pattern holes 12a without pressurizing the cream solder, and a problem caused by the leakage of the cream solder can be eliminated.
    Type: Grant
    Filed: October 30, 2002
    Date of Patent: March 30, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Seiko Abe, Seiichi Miyahara, Yuji Otake, Hirotoshi Sakamoto
  • Publication number: 20040050266
    Abstract: An apparatus for preventing media deposition in predetermined locations comprising at least one blocking cap connected to a pressurized squeegee head is disclosed. In one embodiment, a method for partially printing a circuit board is disclosed. The method comprises inserting one or more blocking caps inside a pressurized squeegee head and printing with the pressurized squeegee head. In this way, defined areas on the surface of a stencil or screen, over which the blocking caps travel, are skipped. In another embodiment, a new method for manufacturing printed circuit boards is described, comprising placing a component on a circuit board, performing burn-in or testing of the component, partially printing attachment media on the circuit board with a pressurized squeegee head containing one or more blocking caps, and placing additional components on the circuit board. In one embodiment, the circuit board is sold or returned to the circuit board designer before performing the partial printing step.
    Type: Application
    Filed: September 8, 2003
    Publication date: March 18, 2004
    Applicant: Intel Corporation
    Inventor: Dudi Amir
  • Publication number: 20040045458
    Abstract: An apparatus and method for depositing material on a surface of an electronic substrate includes a frame, a substrate support coupled to the frame to support the electronic substrate, a stencil coupled to the frame having at least one aperture to receive a material to be deposited through the aperture onto the surface of the electronic substrate, a controller that controls dispensing of material on the substrates, and a vibration system, coupled to one of the stencil, the frame and the substrate support, and coupled to the controller, that introduces a vibration to the stencil, wherein the vibration has a frequency controlled by the controller based on characteristics of at least one of the material, the stencil and the electronic substrate. Release of material from the apertures is accomplished while the vibration is applied to the stencil.
    Type: Application
    Filed: September 6, 2002
    Publication date: March 11, 2004
    Inventors: Gerald Pham-Van-Diep, Frank Andres
  • Patent number: 6698347
    Abstract: Cream solder stored in a squeegee head is pressurized by a pressurizing plate, and the squeegee head is slid on a mask plate, so that the cream solder is printed onto a substrate via pattern apertures. This is done by a screen printing apparatus, in which pressurized solder is accommodated, and the solder is brought into contact with a surface of the mask plate via an opening formed on a lower face of the cell. A rectifier is disposed in the cell for blocking the cream solder from flowing into a specific area just above the opening. This structure allows the solder to flow into the opening in a slant direction, and causes the solder to roll. This mechanism prevents the solder from being hardened due to staying stagnant just above the opening, and thus prevents defective printings.
    Type: Grant
    Filed: December 4, 2001
    Date of Patent: March 2, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Seiichi Miyahara, Kimiyuki Yamasaki, Takahiro Fukagawa, Kunihiko Tokita
  • Patent number: 6698345
    Abstract: An apparatus for, and a method of, printing a precise pattern on the inside radius of a curved substrate by the pivotal movement of a pendulum moving across the surface of a screen capable of receiving and transferring an ink, is disclosed.
    Type: Grant
    Filed: June 21, 2001
    Date of Patent: March 2, 2004
    Assignees: Exatec, L.L.C.
    Inventor: Thomas V. Cutcher
  • Patent number: 6698346
    Abstract: A printing-agent replenishing device including a replenisher which has a container for accommodating a printing agent and a delivery nozzle disposed at one end of the container and which is operable to delivery the printing agent from the delivery nozzle, for replenishing a printing-agent replenishment object in a screen printer, the device further including a cutting wire for cutting off a mass of the printing agent which extends from a free end of the delivery nozzle, and a cutting-wire holding device which holds the cutting wire such that the cutting wire is held in contact with or in close proximity to the free end face of the delivery nozzle, so as to traverse an opening in the free end face, and such that the cutting wire is rotatable about an axis substantially aligned with an axis of the delivery nozzle.
    Type: Grant
    Filed: October 26, 2001
    Date of Patent: March 2, 2004
    Assignee: Fuji Machine Mfg. Co., Ltd.
    Inventors: Toshinori Shimizu, Manabu Mizuno, Jun Adachi
  • Publication number: 20040035306
    Abstract: When solder paste passes through a first gap (34) located between a pressurizing member (28) and a printing mask (3) during solder paste printing, a pressure directed toward the printing mask is applied from the pressurizing member to the solder paste.
    Type: Application
    Filed: August 15, 2003
    Publication date: February 26, 2004
    Inventors: Hiroaki Onishi, Toshinori Mimura, Naoichi Chikahisa, Ken Takahashi, Toshiyuki Murakami, Hitoshi Nakahira, Sadayuki Nagashima
  • Publication number: 20040025721
    Abstract: A screen printing squeegee to manually apply ink or pigment through a screen or mesh membrane onto a substrate comprising a squeegee holder including a blade channel to operatively receive a squeegee blade therein having a squeegee handle thereon such that the centerline axis of the squeegee handle is inclined relative to the centerline axis of the squeegee blade wherein the acute angle formed by the intersection of the centerline axis of the squeegee handle and the centerline axis of the squeegee blade is about 60 degrees whereby the squeegee is manually pushed across the substrate away from the operator when the centerline axis of the squeegee handle forms an angle of from about 150 degrees to about 130 degrees with the substrate.
    Type: Application
    Filed: August 6, 2002
    Publication date: February 12, 2004
    Inventor: Jeffrey S. Pingel
  • Patent number: 6684766
    Abstract: A wiper blade for a screen printing head in which pasty product to be screen printed is biased toward a printing screen under pressure, the wiper blade comprising an elongate blade element having a thickness of between 0.1 and 0.5 mm, one edge of the blade element being configured to be fixed to a screen printing head and the other edge of the blade element being a forwardly-directed free edge which in use contacts a printing screen, and a strip fixed to the upper, non-screen contacting surface of the blade element along the free edge there of, wherein the strip and the free edge of the blade element together define a leading face which has a height of from 1 to 2.5 mm and encloses an acute angle with the printing screen.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: February 3, 2004
    Assignee: Dek International GmbH
    Inventors: Neil MacMillan Macraild, Simon Garry Clasper
  • Patent number: 6684769
    Abstract: In a rotary screen printing apparatus, a method and apparatus are disclosed for converting a printing station into a cleaning station. A cleaning attachment replaces either the squeegee or the flood bar, or both, in a conventional print station.
    Type: Grant
    Filed: April 1, 2002
    Date of Patent: February 3, 2004
    Assignee: Best Buy Enterprise Services, Inc.
    Inventor: Bryan Hed
  • Patent number: 6684765
    Abstract: A cleaning element for a solder paste printing machine includes a shaft with an opening therein. Positioned within the opening is a protrusion element. A spring element is also positioned within the opening. The protrusion element further includes a first portion which fits within the opening of the shaft, and a second portion which extends beyond the opening in the shaft. At least a portion of the spring element is sandwiched between the opening in the shaft and the first portion of the protrusion element. A cover having a slot therein for allowing the second portion of the protrusion element to pass therethrough may also be provided for covering the shaft.
    Type: Grant
    Filed: November 22, 2000
    Date of Patent: February 3, 2004
    Assignee: Seagate Technology LLC
    Inventors: Thiruselvan Rajathuray, Yuen Sai Po
  • Publication number: 20040011228
    Abstract: A stencil for use in fabricating semiconductor devices is disclosed that has an aperture having a first portion extending from a first side thereof and a second portion extending from a second side thereof to minimize the shear stress between the material extruded therethrough and the stencil. The stencil allows for material to be extruded through the top of the stencil to the surface of the substrate and not contact the wall of the second portion of the aperture of the stencil. Since the material only contacts a small area of the first portion of the aperture near the top of the stencil, the material remains on the substrate and not in the aperture of the stencil.
    Type: Application
    Filed: June 26, 2003
    Publication date: January 22, 2004
    Inventors: Chad Cobbley, Ford B. Grigg
  • Patent number: 6675704
    Abstract: A solder paste stenciling apparatus for minimizing residue of solder paste includes a stencil having multiple stencil openings defined therein, a supporting member retaining the stencil, and a vibrator for vibrating the stencil. In operation, a substrate is engaged to a bottom surface of the stencil, and solder paste is applied onto a top surface of the stencil so that the stencil openings are filled with the solder paste. The substrate is then slowly separated from the stencil while the vibrator vibrates the stencil to evacuate the solder paste out of the stencil openings and to further deposit on the substrate. Hence, the amount of residual solder paste adhered to inner surfaces defining the stencil openings is minimized.
    Type: Grant
    Filed: March 6, 2002
    Date of Patent: January 13, 2004
    Assignee: Compeq Manufacturing Company Limited
    Inventors: Cheng-Yuan Lin, Sheng-Long Wu, Te-Chang Huang, Hao-Wei Liang, Pin-Hsuan Chang
  • Publication number: 20030230203
    Abstract: A cream solder cartridge used in a screen printing apparatus which prints cream solder on a board through pattern holes by sliding, on a mask plate, a closed squeegee that is stored with cream solder inside is composed of a long and narrow concave portion made of a flexible film-like material, a brim portion projecting from the outer periphery of the concave portion, and a film-like cover sheet that is stuck to the brim portion and thereby closes the opening of the concave portion. This configuration makes it possible to supply paste at a low cost and to perform a viscosity adjustment easily by externally stirring the paste accommodated inside.
    Type: Application
    Filed: June 16, 2003
    Publication date: December 18, 2003
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Seiko Abe, Seiichi Miyahara, Yuji Otake
  • Patent number: 6662718
    Abstract: A screening mask having a stress-relieving area including an inner functional area having a pattern which is replicated on an underlying substrate, the inner functional area pattern having an one open area through which a paste is extruded and at least one tab, and an outer nonfunctional area distinct from the inner functional area, the outer nonfunctional area having a stress-relieving area adjacent to an edge of the screening mask that protects the at least one tab in the inner functional area from breaking.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: December 16, 2003
    Assignee: International Business Machines Corporation
    Inventors: Evelyn Barrington, Jeffrey A. Brody, Harry David Cox, Lorraine Di Piero-Simmonds, John J. Garant, Dinesh Gupta, Edward J. Hassdenteufel, III, Hsichang Liu, Paul G. McLaughlin, Ahmed S. Shah, Charles Timothy Ryan, Richard C. Steger, John A. Trumpetto
  • Patent number: 6659005
    Abstract: A screen printing method and apparatus for printing a circuit pattern corresponding to that of a stencil (4), onto a print-object article (1) placed on an ascendable/descendable positioning stage (2), through moving a squeegee (5a, 5b) horizontally while the squeegee is pushed in on the stencil so that print paste (9) is printed to the article via the stencil. The squeegee is lifted to an extent of a push-in stroke, to which the squeegee has been pushed in on the stencil, and thereafter the article is separated away from the stencil by moving the stage downward. The board is classified into first and second areas (121, 120) where values of opening sizes of the stencil along a squeegee moving direction are smaller than and not smaller than a threshold, and a speed of the squeegee at the first area is made slower than that at the second area.
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: December 9, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Ken Takahashi, Naoichi Chikahisa, Yousuke Nagasawa, Takao Naito, Akihiko Wachi, Seishiro Yanachi, Nobuyasu Nagafuku, Nobuyuki Kakishima
  • Patent number: 6659002
    Abstract: Screening of a workpiece utilizing a screening apparatus which includes a paste dispensing apparatus and a trailing squeegee assembly in close proximity to the paste dispensing apparatus. When the screening apparatus is operable, the squeegee assembly is in contact with the workpiece at the same time as a paste is dispensed from the paste dispensing apparatus.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: December 9, 2003
    Assignee: International Business Machines Corporation
    Inventors: Daniel T. Langdon, Keith C. O'Neil, Kurt A. Smith, Randall J. Werner, Ralph R. Comulada, Jr.
  • Patent number: 6656274
    Abstract: A device for dosing and distribution of hotmelt on a substrate is provided. The device includes substrate throughput, hotmelt supply, at least one hotmelt application position with a stencil, hotmelt distribution and a squeegee device. The hotmelt distribution includes a hotmelt dispensing nozzle. A dosing unit and drive for moving the dosing unit to and fro along said squeegee device are also provided. The hotmelt dispensing nozzle is fitted on the movable dosing unit.
    Type: Grant
    Filed: October 29, 2001
    Date of Patent: December 2, 2003
    Assignee: Stork Brabant B.V.
    Inventors: Wilhelmus J. A. L. M. Claassen, Martinus H. B. M. Rutten
  • Patent number: 6637326
    Abstract: A method of method of controlling a pushing pressure which is applied to a printing material, such as a creamed solder, to push the material out of a printing head of a screen printing apparatus and print the material on an object, such as a printed wiring board, through at least one through-hole of a screen of the apparatus while at least one of the head and the screen is moved relative to the other of the head and the screen in a direction parallel to the screen, the method comprising the step of changing the pushing pressure applied to the printing material, while a printing operation is carried out on the object by the screen printing apparatus.
    Type: Grant
    Filed: August 24, 2000
    Date of Patent: October 28, 2003
    Assignee: Fuji Machine Mfg. Co., Ltd.
    Inventors: Takeyoshi Isogai, Jun Adachi, Tatsumi Saito, Manabu Mizuno
  • Patent number: 6626099
    Abstract: An apparatus for preventing media deposition in predetermined locations comprising at least one blocking cap connected to a pressurized squeegee head is disclosed. In one embodiment, a method for partially printing a circuit board is disclosed. The method comprises inserting one or more blocking caps inside a pressurized squeegee head and printing with the pressurized squeegee head. In this way, defined areas on the surface of a stencil or screen, over which the blocking caps travel, are skipped. In another embodiment, a new method for manufacturing printed circuit boards is described, comprising placing a component on a circuit board, performing burn-in or testing of the component, partially printing attachment media on the circuit board with a pressurized squeegee head containing one or more blocking caps, and placing additional components on the circuit board. In one embodiment, the circuit board is sold or returned to the circuit board designer before performing the partial printing step.
    Type: Grant
    Filed: November 5, 1999
    Date of Patent: September 30, 2003
    Assignee: Intel Corporation
    Inventor: Dudi Amir
  • Patent number: 6626097
    Abstract: A printer for printing a viscous material at predetermined positions forming a pattern on a substrate. The printer includes a frame, a device, mounted to the frame, having a number of perforations arranged to form the pattern, a support apparatus, coupled to the frame, that supports the substrate in a printing position beneath the device, and a material dispenser. The material dispenser has a chamber to contain the viscous material to be printed on the substrate. The chamber has an opening through which the viscous material is dispensed. The material dispenser is coupled to the frame, positioned over the device, and constructed and arranged to dispense the viscous material through the perforations in the device and onto the substrate. The material dispenser has a retraction device that prevents leakage of the viscous material from the opening after dispensing is complete.
    Type: Grant
    Filed: October 1, 2001
    Date of Patent: September 30, 2003
    Assignee: Speedline Technologies, Inc.
    Inventors: Mark Rossmeisl, Gary T. Freeman, Robert Balog
  • Patent number: 6619198
    Abstract: A printer for printing a viscous material at predetermined positions forming a pattern on a substrate. The printer includes a frame, a device, mounted to the frame, having a number of perforations arranged to form the pattern, a support apparatus, coupled to the frame, that supports the substrate in a printing position beneath the device, and a material dispenser. The material dispenser has a chamber to contain the viscous material to be printed on the substrate. The chamber has an opening through which the viscous material is dispensed. The material dispenser is coupled to the frame, positioned over the device, and constructed and arranged to dispense the viscous material through the perforations in the device and onto the substrate. The material dispenser has a retraction device that prevents leakage of the viscous material from the opening after dispensing is complete. The material dispenser includes a temperature control system to maintain the temperature of the viscous material contained in the chamber.
    Type: Grant
    Filed: September 24, 2002
    Date of Patent: September 16, 2003
    Assignee: Speedline Technologies, Inc.
    Inventors: Mark Rossmeisl, Gary T. Freeman
  • Patent number: 6619197
    Abstract: To keep a printing paste, which is most influential to a printing performance, always in a uniform state, carry out printing at a high accuracy and in a stable manner, and use an expensive paste with no waste, there is provided a printing paste automatic supplying apparatus which supplies a predetermined amount of printing paste (5) by charging the printing paste (5) in a printing paste supply bag (15) and pressurizing the printing paste (5), provided with a mechanism for opening and closing a printing paste supply port (7) by bringing a printing paste supply plate (6) having the printing paste supply port (7) into contact with the back surface side of a squeegee (4) and vertically moving them, and further provided with a scraper (9) which scrapes up the printing paste on a screen printing plate (3).
    Type: Grant
    Filed: February 5, 2002
    Date of Patent: September 16, 2003
    Assignee: Minami Co., Ltd.
    Inventors: Takehiko Murakami, Shunji Murano, Takamasa Miyata
  • Publication number: 20030167941
    Abstract: A solder paste stenciling apparatus for minimizing residue of solder paste includes a stencil having multiple stencil opens defined therein, a supporting member retaining the stencil, and a vibrator for vibrating the stencil. In operation, a substrate is engaged to a bottom surface of the stencil, and solder paste is applied onto a top surface of the stencil so that the stencil opens are filled with the solder paste. The substrate is then slowly separated from the stencil while the vibrator vibrates the stencil to evacuate the solder paste out of the stencil opens and to further deposit on the substrate. Hence, the amount of residual solder paste adhered to inner surfaces defining the stencil opens is minimized.
    Type: Application
    Filed: March 6, 2002
    Publication date: September 11, 2003
    Inventors: Cheng-Yuan Lin, Sheng-Long Wu, Te-Chang Huang, Hao-Wei Liang, Pin-Hsuan Chang
  • Patent number: 6615715
    Abstract: A squeegee head having a volume-variable container and a printing space is used. The volume-variable container is variable in capacity with pressures applied thereto. The volume-variable container includes a projecting portion having a plurality of projections, a push-plate with a plurality of through-holes formed therein, and a side wall. A paste is stored in the volume-variable container. The projecting portion is pressurized to move and the paste is pushed out into the printing space from the through-holes, and then, the projections are fitted into the through-holes. In this way, the paste being stable in viscosity is completely pushed out into the printing space without wasting at all.
    Type: Grant
    Filed: July 3, 2001
    Date of Patent: September 9, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Seikoh Abe, Michinori Tomomatsu, Seiichi Miyahara, Kimiyuki Yamasaki
  • Patent number: 6612232
    Abstract: A screen printer for printing paste on a board by sliding a squeegee head on a mask plate. A pushing plate pressurizes solder paste in the squeegee head, and pressurized paste is led to a paste container from both outer parts in a printing width direction inward towards a printing center through a solder dispensing hole provided on both ends of the paste container. This configuration allows to print in accordance with the time-line supply sequence, regardless of the printing width of the board to be printed. This screen printer thus prevents the degradation and the consequent need for disposal of solder paste due to its retention in the squeegee head for long periods.
    Type: Grant
    Filed: January 24, 2002
    Date of Patent: September 2, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Seiichi Miyahara, Michinori Tomomatsu, Kimiyuki Yamasaki, Kunihiko Tokita
  • Patent number: 6612231
    Abstract: A squeegee for forcing a print material into apertures of a mask screen which is disposed on an object, so as to print the print material on the object. The squeegee includes: (a) a plate body movable relative to the mask screen in sliding contact thereof with one of opposite surfaces of the mask screen which is remote from the object, while taking a rearward inclined posture in which the plate body is inclined such that a distal end portion of the plate body is positioned on a forward side of a proximal end portion of the plate body as viewed in a squeegee moving direction in which the plate body is moved relative to the mask screen; and (b) a bank portion provided on one of opposite surfaces of the plate body which is remote from the mask screen, and having a blocking surface which projects from the distal end portion of the plate body in a direction away from the mask screen. The bank portion is made of a material softer than a material of the plate body.
    Type: Grant
    Filed: December 6, 2001
    Date of Patent: September 2, 2003
    Assignee: Fuji Machine Mfg. Co., Ltd.
    Inventors: Toshinori Shimizu, Manabu Mizuno, Jun Adachi, Mamoru Tsuda
  • Publication number: 20030131741
    Abstract: A vacuum print system comprising: an outer shell to define an airtight inner space and having a closure door at a ceiling thereof; a printer provided in the airtight inner space; a worktable to supply a work to the printer provided in the airtight inner space operable to move; and an air exhaust system connected to the airtight inner space is disclosed.
    Type: Application
    Filed: January 8, 2003
    Publication date: July 17, 2003
    Inventor: Hiroshi Kawakita
  • Patent number: 6591745
    Abstract: It is possible to obtain a screen printing apparatus and a screen printing method wherein a high pressing force is not required to print paste on a substrate thereby assuring reliable printing qualities. In the screen printing apparatus which prints the paste on the substrate through pattern holes, the paste in a storage section is pressurized and forced out of a printing space portion through a transfer passage. The paste is given a rolling motion while it is guided by rolling guide surfaces disposed at the printing space portion, and then, the paste is filled into the pattern holes from a printing aperture formed by two scraping members.
    Type: Grant
    Filed: February 13, 2001
    Date of Patent: July 15, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Seiichi Miyahara, Michinori Tomomatsu, Seikou Abe, Kimiyuki Yamasaki