Traveling-inker Machines Patents (Class 101/123)
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Patent number: 6588335Abstract: A capillary squeegee and a method utilizing a capillary squeegee for screen printing liquid product onto a substrate through apertures in a printing screen on translation thereover, the squeegee including a capillary element for delivering liquid product from a pressurizable reservoir to a printing screen, wherein the capillary element is configured to provide a flow resistance which is such as to prevent flow therefrom when not pressurized and allow flow therefrom when pressurized; and first and second sealing lips which, during screen printing, both together contact the printing screen, wherein the sealing lips are disposed, in oppositely-inclined relation, to opposed edges of the capillary element in the direction of translation and define a delivery aperture therebetween, the delivery aperture having size suited to the substrate.Type: GrantFiled: May 18, 2001Date of Patent: July 8, 2003Assignee: Novatec SAInventors: Francis Bourrieres, Clement Kaiser
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Patent number: 6571701Abstract: A printer includes a dispensing head for dispensing viscous material, such as solder paste. The dispensing head defines a chamber and includes at least one source port and a dispensing slot, wherein the viscous material flows from a supply mounted to the source port, into the chamber and out the dispensing slot. Within the chamber, a stirring mechanism is mounted. The stirring mechanism is coupled to a drive mechanism that displaces the stirring mechanism through the chamber, thereby stirring the viscous material. The stirring mechanism is particularly effective in preventing or reducing compaction of solder paste within the chamber.Type: GrantFiled: May 4, 2001Date of Patent: June 3, 2003Assignee: Speedline Technologies, Inc.Inventors: Gerald C. Pham-Van-Diep, Patsy Anthony Mattero, Timothy J. Joyce, Eric J. Gray
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Publication number: 20030097941Abstract: 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: ApplicationFiled: September 24, 2002Publication date: May 29, 2003Inventors: Mark Rossmeisl, Gary T. Freeman
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Patent number: 6564708Abstract: To prevents a displacement of a screen mask accompanying with a movement of a squeegee and an oxidization of a printing agent, a printing agent sweeping drum (1) has closed both end portions, has a supporting shaft (2) inserted to a center portion thereof, has a lower end portion partly opened, is made rotatable with respect to the supporting shaft, oscillates along a moving direction of the squeegee via a movement of the supporting shaft (2), moves downward at a movement starting end position, moves upward at a terminal end position, and rotates at a predetermined angle in an opposite direction at a predetermined timing at the starting end position and the terminal end position, a squeegee (4) inclined at a predetermined angle and moving upward and downward at a predetermined timing being arranged within the printing agent sweeping drum 1, a squeegee (10) and a printing agent extruding plate (11) being attached to a lower end of the squeegee holder (4) and a nitrogen gas (17) being charged into the printingType: GrantFiled: August 20, 2001Date of Patent: May 20, 2003Assignee: Minami Co., Ltd.Inventor: Takehiko Murakami
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Patent number: 6561088Abstract: A machine for screen-printing on a flat sheet comprises at least one first mobile frame connected to a support plane for the sheet to be printed and at least one second mobile frame that supports a screen for printing, a doctor, and the members to guide and move the doctor. Pairs of eccentric wheels are provided so as to cyclically move the first and second frames in a direction perpendicular to the support plane between an open position, corresponding to which an already printed sheet is removable and a sheet to be printed is introducible, and a closed position in which the sheet to be printed may be retained on the support plane during the printing phase.Type: GrantFiled: November 30, 2001Date of Patent: May 13, 2003Assignee: Argon HT S.r.l.Inventor: Haritiun Manoukian
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Publication number: 20030084797Abstract: 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: ApplicationFiled: October 30, 2002Publication date: May 8, 2003Inventors: Seiko Abe, Seiichi Miyahara, Yuji Otake, Hirotoshi Sakamoto
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Publication number: 20030079627Abstract: 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: ApplicationFiled: October 31, 2001Publication date: May 1, 2003Applicant: International Business Machines CorporationInventors: Daniel T. Langdon, Keith C. O'Neil, Kurt A. Smith, Randall J. Werner, Ralph R. Comulada
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Patent number: 6553905Abstract: 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: GrantFiled: March 1, 2001Date of Patent: April 29, 2003Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Seiichi Miyahara, Takahiro Fukagawa, Minoru Murakami, Michinori Tomomatsu, Seiko Abe, Kimiyuki Yamasaki, Kunihiko Tokita
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Patent number: 6546857Abstract: A machine for processing hollow glass objects (8) is described. The machine includes a sequence of like processing units (1) to (15) and (A, B) on which a small number of processing steps can be carried out on the workpiece (8). The workpieces (8) are brought to the processing unit on a clock-driven loading belt (4) and taken therefrom. A workpiece, which is being processed in a unit, is held during the entire sequence by one and the same workpiece holder. Each processing unit includes two separate handling units with which two workpieces run through the workstations time displaced. The machine arrangement permits processing units to be taken out or switched into the line without a production standstill.Type: GrantFiled: March 12, 2001Date of Patent: April 15, 2003Assignee: Schott GlasInventors: Wolfgang Fischer, Alois Christ, Michael Kaus, Heiner Mühl
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Patent number: 6539855Abstract: A screen printing apparatus and method for forming printed wiring on a substrate, such as a wafer. The apparatus includes a reservoir disposed beneath a screen having a plurality of openings forming a pattern thereon. Disposed within the reservoir is a printing paste. The screen is pressed into the printing paste such that convex structures are formed on the upper surface of the screen, and are printable onto the substrate. A wiper is also movably disposed within the reservoir, cooperating with the screen to establish contact between the screen and the substrate.Type: GrantFiled: May 22, 2001Date of Patent: April 1, 2003Assignee: Micron Technology, Inc.Inventor: Michael B. Ball
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Publication number: 20030010231Abstract: A device and method for application of material onto a medium. The device includes a mesh-like substrate configured to hold the material within a plurality of holes. The device also includes a nozzle configured to expel fluid at a relatively high rate of speed at the material held within the holes to thereby force the material out of the holes. At least by virtue of the fact that the material does not make contact with the nozzle, any number of different types of materials may be utilized, e.g., those materials that may be incompatible with the nozzle. In this respect, for example, a solid material (e.g., powder) may also be printed onto the medium. Additionally, the materials applied onto the medium may be mixed during the application process. Moreover, operation of the device is not limited to media having flat surfaces.Type: ApplicationFiled: July 12, 2001Publication date: January 16, 2003Inventor: Ramon Vega
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Patent number: 6505553Abstract: A screen-printing method, including the steps of filling, in a state in which a screen having through-holes is contacted with a print surface of a substrate, the through-holes with a print material, and thereby applying the print material to the print surface of the substrate, moving, after the filling step, one of the screen and the substrate relative to the other of the screen and the substrate, in one or more cycles, on a plane parallel to the print surface of the substrate, in one or more directions parallel to one or more straight lines, and separating, after the moving step, the screen and the substrate from each other.Type: GrantFiled: April 2, 2001Date of Patent: January 14, 2003Assignee: Fuji Machine Mfg. Co., LtdInventors: Nobumichi Ishida, Toshinori Shimizu, Manabu Mizuno
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Publication number: 20020195007Abstract: Screen printing is performed by using a pressure squeegee, a main squeegee, and a scraper squeegee. Since a screen is pressed by the pressure squeegee in advance, an angle between the main squeegee and the screen is kept constant. After printing is finished by the main squeegee, the scraper squeegee scrapes a remaining ink.Type: ApplicationFiled: August 27, 2002Publication date: December 26, 2002Applicant: Micro-Tec Company, Ltd.Inventors: Yasushi Sano, Osamu Tanaka
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Patent number: 6494133Abstract: A method of printing a print material on a surface of an object by placing the print material on a surface of a print mask having a plurality of holes, positioning the print mask relative to the object such that the print mask is near, and substantially parallel, to the surface of the object, moving at least one of a squeegee and a first combination of the print mask and the object relative to the other of the squeegee and the first combination, in a print direction along the surface of the print mask, while locally pressing, with the squeegee, the print mask against the surface of the object and pressing, with the squeegee, the print material along the surface of the print mask, so that a portion of the print material is printed on the surface of the object through the holes of the print mask, the method including the steps of locally pressing, with a mask-press member, the print mask against the surface of the object, at a position distant from the squeegee by a predetermined distance which assures that theType: GrantFiled: December 28, 2000Date of Patent: December 17, 2002Assignee: Fuji Machine Mfg. Co., Ltd.Inventor: Kunio Ooe
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Patent number: 6494132Abstract: Screen printing is performed by using a pressure squeegee, a main squeegee, and a scraper squeegee. Since a screen is pressed by the pressure squeegee in advance, an angle between the main squeegee and the screen is kept constant. After printing is finished by the main squeegee, the scraper squeegee scrapes a remaining ink.Type: GrantFiled: December 28, 1999Date of Patent: December 17, 2002Assignee: Micro-Tec Company, Ltd.Inventors: Yasushi Sano, Osamu Tanaka
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Publication number: 20020148369Abstract: 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: ApplicationFiled: April 12, 2002Publication date: October 17, 2002Inventors: Kimiyuki Yamasaki, Seiko Abe, Seiichi Miyahara, Michinori Tomomatsu
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Publication number: 20020148374Abstract: An apparatus and method for cleaning excess solder paste that is deposited on a stencil in a stencil printer. The apparatus includes a solvent bath containing a pool of solvent in which a bar is disposed in the solvent bath. The bar rotates in the solvent bath and surface tension between the bar and the solvent causes the solvent to uniformly adhere to the bar. The bar is used to apply solvent to a cleaning material that is used to wipe excess solder paste from the stencil.Type: ApplicationFiled: April 17, 2001Publication date: October 17, 2002Inventors: Randy Leon Peckham, Joseph A. Perault
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Patent number: 6458211Abstract: The invention relates to a device and to a method for applying a medium in the form of liquid, powder or paste to a substrate, having a container for the medium and a transport device which takes the medium from the container and discretely distributes it. In a propelling device the medium is selectively transferred from the transport device to the substrate with a propellant which is separate from the medium, or in the propelling device the medium is selectively removed from the transport device, and the remaining medium is transferred from the transport device to the substrate.Type: GrantFiled: August 14, 2000Date of Patent: October 1, 2002Assignee: Stork Textile Printing Group B.V.Inventors: Lothar Wefers, Josef Juffinger
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Patent number: 6453810Abstract: 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.Type: GrantFiled: November 8, 1999Date of Patent: September 24, 2002Assignee: Speedline Technologies, Inc.Inventors: Mark Rossmeisl, Gary T. Freeman, Robert Balog
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Patent number: 6453811Abstract: Regarding filling of a paste, a temperature gradient at a paste-pressing face is managed by a heater incorporated in a filling head. Alternatively, a nonvolatile component is applied to a printing face of a base material before the paste is filled, thereby preventing a volatile component of the paste from evaporating with time. Viscosity of the paste is thus maintained. Meanwhile, a change of the quantity of the paste is coped with by changing a moving speed of the filling head or a contact angle of the filling head to the printing face, or by supporting the filling head at the side in touch with the printing face.Type: GrantFiled: August 30, 2000Date of Patent: September 24, 2002Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Takaaki Higashida, Hiroyuki Otani, Takahiko Iwaki
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Publication number: 20020117063Abstract: 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: ApplicationFiled: January 24, 2002Publication date: August 29, 2002Inventors: Seiichi Miyahara, Michinori Tomomatsu, Kimiyuki Yamasaki, Kunihiko Tokita
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Patent number: 6439115Abstract: 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: GrantFiled: August 30, 2000Date of Patent: August 27, 2002Assignee: Micron Technology, Inc.Inventors: John M. Michiels, Darryl M. Stansbury
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Publication number: 20020088354Abstract: 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: ApplicationFiled: December 4, 2001Publication date: July 11, 2002Inventors: Seiichi Miyahara, Kimiyuki Yamasaki, Takahiro Fukagawa, Kunihiko Tokita
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Patent number: 6411863Abstract: An auxiliary control system is operatively associated with a press machine controller including a programmable logic controller having a main processor. The auxiliary control system includes a sensor assembly arranged to provide sensor information which is representative of the condition of the press machine. An auxiliary processor is arranged to monitor for the occurrence of press operating events as signified by the sensor information. The auxiliary processor provides a state signal to the press controller which is representative of the results of the monitoring activity to enable the PLC to control the press machine. Additionally, an improved press machine PLC includes an auxiliary sensor assembly for providing sensor information which is representative of the condition of the press machine.Type: GrantFiled: November 2, 1998Date of Patent: June 25, 2002Assignee: The Minster Machine CompanyInventor: Charles H. Dickman
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Patent number: 6408745Abstract: A variable height print table arrangement for a screen printing apparatus which includes a plurality of rotatable lower level outwardly extending spider arms which support corresponding support pallets or tables on which apparel or other textile substrates to be screen printed are placed. The rotatable lower level outwardly extending spider arms are lowered and raised using a mechanical drive, such as an electrical servomotor or an electrical stepper motor, which is capable of lowering and raising the rotatable lower outwardly extending level spider arms a predetermined variable distance. The variable height print table arrangement for a screen printing apparatus also includes a counterbalance arrangement, preferably using a compression spring, which reduces the effective weight of the rotatable lower level outwardly extending spider arms and allows a smaller mechanical drive to be used.Type: GrantFiled: January 6, 2000Date of Patent: June 25, 2002Assignee: Anatol IncorporatedInventors: Anatol Topolewski, Mark Smialek, Eugene Wesolowski
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Patent number: 6397741Abstract: A squeegee blade system having a pair of squeegee blade holders, each holder having a squeegee blade secured thereto. When one squeegee blade moves to and from a print stroke position, the other holder moves its associated blade from and to a non-print stroke position. Each of the squeegee blade holders have an actuator and a sensor/display such that the actuator of one holder communicates with the sensor of the other holder. Each time one squeegee blade holder is moved to the print stroke position the actuator of the one squeegee blade holder actuates the sensor/display in the other squeegee blade holder such that an accurate count of the squeegee blade usage is displayed. In another embodiment, a squeegee blade system on a squeegee head has a pair of mirror image squeegee blades secured thereto such that the head moves to and from a stencil. A sensor and a means for counting are secured to the squeegee head such that the sensor is actuated each time the squeegee head moves to the stencil.Type: GrantFiled: May 17, 2000Date of Patent: June 4, 2002Inventor: Mark Curtin
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Publication number: 20020056379Abstract: 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: ApplicationFiled: December 6, 2001Publication date: May 16, 2002Applicant: FUJI MACHINE MFG. CO., LTD.Inventors: Toshinori Shimizu, Manabu Mizuno, Jun Adachi, Mamoru Tsuda
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Publication number: 20020053292Abstract: 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: ApplicationFiled: July 3, 2001Publication date: May 9, 2002Inventors: Seikoh Abe, Michinori Tomomatsu, Seiichi Miyahara, Kimiyuki Yamasaki
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Patent number: 6363846Abstract: A screen printing apparatus is configured to perform a printing operation and a checking and inspecting of the state of print on a substrate. A mask frame and a camera apparatus for checking and inspecting the print state are arranged along a direction of transfer of the substrate so as to be disposed in parallel to each other. After the substrate receives a printed pattern by operation of a squeegee apparatus, the substrate is moved by substrate support tables to a checking and inspecting station. The supporting tables are arranged below the mask frame and the camera apparatus.Type: GrantFiled: August 7, 2000Date of Patent: April 2, 2002Assignee: Minami Co. Ltd.Inventor: Takehiko Murakami
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Patent number: 6354199Abstract: A holding table for a plate to be printed, has a table plate with a supporting body on an end; a holding plate pivotally attached to an upper end of the supporting body; a moving table slidably mounted on guide rails secured to the table plate; a link pivotally connected to a free end of the holding plate and pivotally connected to the moving table. A driving plate fixed to the moving table has an opening with an internal thread. A driving motor on the table plate has an output shaft with a screw shaft engaged with the internal thread. Upon applying a printing agent to the plate to be printed by a movement of a squeegee, the plate to be printed is gradually separated from a screen from one side to another such that the printing agent within a through hole in the screen is smoothly and completely released.Type: GrantFiled: May 11, 2001Date of Patent: March 12, 2002Assignee: Minami Co., Ltd.Inventor: Takehiko Murakami
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Patent number: 6352025Abstract: A solder printing apparatus (40) for use within a solder printer (34) includes a vision and alignment mechanism (44), a steering mechanism (46), a vacuum conveyer (48), and a tension roller assembly (42). The vision and alignment mechanism (44) controls the position of the flexible tape (10) and sends a signal to the steering mechanism (46). The steering mechanism (46) adjusts the position of the flexible tape (10) in response to receiving the signal from the vision and alignment mechanism (44). The vacuum conveyer (48) holds and advances the flexible tape (10). The tension roller assembly (42) maintains tension in the flexible tape (10).Type: GrantFiled: September 1, 2000Date of Patent: March 5, 2002Assignee: Motorola, Inc.Inventors: Ovidiu Neiconi, Richard Lee Mangold, Christopher Lee Becher, John Patrick Hunt
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Patent number: 6352026Abstract: A screen printing apparatus for applying a printing agent in different thicknesses to a plate. A mask of the apparatus has a width corresponding to or matching the widths of two plates to be printed. A first portion of the mask, for applying a first printing to the plate, is reduced by recessing an upper surface of the mask portion, with screen holes being provided therein pursuant to a desired pattern. A second portion of the mask, for applying a second printing to the plate, is provided with screen holes in a different pattern. Recesses are provided in the lower surface of the second portion of the mask for receiving the printing agent applied via the first portion of the mask, thereby preventing the printing agent from attaching to the second portion of the mask. A single printing operation, on two plates disposed side by side, is performed by moving a squeegee having two portions with different thicknesses or heights. The plate to be printed can be shifted under the lower surface of the mask.Type: GrantFiled: August 7, 2000Date of Patent: March 5, 2002Assignee: Minami Co., LtdInventor: Takehiko Murakami
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Publication number: 20020023554Abstract: 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: ApplicationFiled: June 28, 2001Publication date: February 28, 2002Inventors: Chad Cobbley, Ford B. Grigg
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Patent number: 6347583Abstract: An apparatus for inspecting a screen of a screen printing machine, including the steps of taking, with an image taking device, an image of at least one opening of the screen, and judging, based on image data representing the taken image, whether the opening of the screen is clogged.Type: GrantFiled: February 7, 2000Date of Patent: February 19, 2002Assignee: Fuji Machine Mfg. Co., Ltd.Inventors: Takeyoshi Isogai, Jun Adachi, Toshinori Shimizu, Manabu Mizuno
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Publication number: 20020007741Abstract: 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: ApplicationFiled: October 1, 2001Publication date: January 24, 2002Inventors: Mark Rossmeisl, Gary T. Freeman, Robert Balog
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Publication number: 20020007740Abstract: 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: ApplicationFiled: June 21, 2001Publication date: January 24, 2002Inventor: Thomas V. Cutcher
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Patent number: 6336402Abstract: A screen printing apparatus is designed so that cream solder 17 disposed on a mask plate 12 can be preserved at a certain appropriate temperature by the limited use of blown air. An air nozzle unit 20 is provided above the mask plate 12 at a place on the side edge running in parallel with the moving direction of a squeegee 16. The temperature-conditioning air is blown sidewise from the air nozzle unit 20 towards the cream solder 17 during the operation of printing the cream solder 17 on the surface of a substrate through the mask plate 12 disposed in contact therewith.Type: GrantFiled: January 19, 2000Date of Patent: January 8, 2002Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Michinori Tomomatsu, Seiichi Miyahara, Minoru Murakami, Seikoh Abe
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Patent number: 6324973Abstract: 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: GrantFiled: January 21, 1999Date of Patent: December 4, 2001Assignee: Speedline Technologies, Inc.Inventors: Mark Rossmeisl, Gary T. Freeman, Robert Balog
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Publication number: 20010032556Abstract: A screen-printing method, including the steps of filling, in a state in which a screen having through-holes is contacted with a print surface of a substrate, the through-holes with a print material, and thereby applying the print material to the print surface of the substrate, moving, after the filling step, one of the screen and the substrate relative to the other of the screen and the substrate, in one or more cycles, on a plane parallel to the print surface of the substrate, in one or more directions parallel to one or more straight lines, and separating, after the moving step, the screen and the substrate from each other.Type: ApplicationFiled: April 2, 2001Publication date: October 25, 2001Applicant: FUJI MACHINE MFG. CO.,LTDInventors: Nobumichi Ishida, Toshinori Shimizu, Manabu Mizuno
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Publication number: 20010025574Abstract: A screen printing apparatus and method for forming printed wiring on a substrate, such as a wafer. The apparatus includes a reservoir disposed beneath a screen having a plurality of openings forming a pattern thereon. Disposed within the reservoir is a printing paste. The screen is pressed into the printing paste such that convex structures are formed on the upper surface of the screen, and are printable onto the substrate. A wiper is also movably disposed within the reservoir, cooperating with the screen to establish contact between the screen and the substrate.Type: ApplicationFiled: May 22, 2001Publication date: October 4, 2001Applicant: Micron Technology, Inc.Inventor: Michael B. Ball
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Publication number: 20010023645Abstract: 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: ApplicationFiled: February 13, 2001Publication date: September 27, 2001Inventors: Seiichi Miyahara, Michinori Tomomatsu, Seikou Abe, Kimiyuki Yamasaki
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Patent number: 6289803Abstract: A screen printing apparatus and method for forming printed wiring on a substrate, such as a wafer. The apparatus includes a reservoir disposed beneath a screen having a plurality of openings forming a pattern thereon. Disposed within the reservoir is a printing paste. The screen is pressed into the printing paste such that convex structures are formed on the upper surface of the screen, and are printable onto the substrate. A wiper is also movably disposed within the reservoir, cooperating with the screen to establish contact between the screen and the substrate.Type: GrantFiled: August 28, 2000Date of Patent: September 18, 2001Assignee: Micron Technology, Inc.Inventor: Michael B. Ball
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Patent number: 6286422Abstract: A novel apparatus for compressing viscous material through openings in a stencil is disclosed. The novel apparatus has a compression head cap which provides a contained environment to direct and to aid the flow of pressurized viscous material through the openings in the stencil.Type: GrantFiled: July 22, 1999Date of Patent: September 11, 2001Assignee: Visteon Global Tech., Inc.Inventors: Jeff (Jin Her) Lin, John Trublowski, Vinh Van Ha
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Patent number: 6272984Abstract: A squeegee for use in screen printing, including a flexible portion, and one separation or two separations extending from a contact edge of the flexible portion for contact with a screen, toward a base portion of the squeegee, thereby at least partly separating the flexible portion, so that the flexible portion includes a first portion between the one separation and a lateral edge of the flexible portion, or between the two separations, and a second portion different from the first portion, and so that the first portion and the second portion are flexible independent of each other.Type: GrantFiled: October 8, 1999Date of Patent: August 14, 2001Assignee: Fuji Machine Mfg. Co., Ltd.Inventors: Seizi Kato, Hiroshi Tsuta
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Publication number: 20010011506Abstract: 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: ApplicationFiled: January 21, 1999Publication date: August 9, 2001Inventors: MARK ROSSMEISL, GARY T. FREEMAN, ROBERT BALOAG
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Patent number: 6267818Abstract: An applicator assembly is provided for depositing various kinds of viscous, spreadable media onto workpieces, such as circuit boards and metal and ceramic substrates, and includes a blade structure having a metal blade portion and a plastic blade portion joined together along one of their respective longitudinal edges. The blade structure is removably attachable to a blade holder and is reversible so that the metal blade can be secured to the blade holder which is mounted to a screen and stencil printer, thus exposing the plastic blade portion for use in screen and stencil printing operations. Alternatively, the blade structure can be secured to the blade holder thereby exposing the metal blade portion for use in screen and stencil printing operations.Type: GrantFiled: April 30, 1999Date of Patent: July 31, 2001Assignee: JNJ Industries, Inc.Inventor: John Joseph Volpe, Jr.
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Publication number: 20010008101Abstract: A method of printing a print material on a surface of an object by placing the print material on a surface of a print mask having a plurality of holes, positioning the print mask relative to the object such that the print mask is near, and substantially parallel, to the surface of the object, moving at least one of a squeegee and a first combination of the print mask and the object relative to the other of the squeegee and the first combination, in a print direction along the surface of the print mask, while locally pressing, with the squeegee, the print mask against the surface of the object and pressing, with the squeegee, the print material along the surface of the print mask, so that a portion of the print material is printed on the surface of the object through the holes of the print mask, the method including the steps of locally pressing, with a mask-press member, the print mask against the surface of the object, at a position distant from the squeegee by a predetermined distance which assures that theType: ApplicationFiled: December 28, 2000Publication date: July 19, 2001Applicant: Fuji Machine MFG, Co., LTD.Inventor: Kunio Ooe
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Patent number: 6253676Abstract: A printing agent within a through hole of a screen is smoothly and completely released out when separating the screen from a plate to be printed. 1. In a screen printing method, at a time of applying a printing agent to a plate to be printed by a movement of a squeegee, the plate to be printed is gradually separated from said screen from one side of the screen to the other side thereof step by step during a movement of the squeegee to a movement finishing end.Type: GrantFiled: February 17, 1999Date of Patent: July 3, 2001Assignee: Minami Co., Ltd.Inventor: Takehiko Murakami
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Patent number: 6240840Abstract: A screen printing apparatus which is structured such that a printing agent is not left within a screen hole of a mask after printing, having a main body of the screen printing apparatus whose upper side within it is formed as a chamber which can be sealed by setting a mask supporting table as a boundary, and a pressure within the chamber can be ascended and descended at a desired timing by suitable pressure ascending and descending means such as air bags and the like.Type: GrantFiled: December 2, 1999Date of Patent: June 5, 2001Assignee: Minami Co., Ltd.Inventor: Takehiko Murakami
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Patent number: 6237486Abstract: A screen-printing apparatus and method for printing skateboards, more particularly short boards. A multi-color press with UV cure stations between successive print heads and a system for transporting short boards to multiples of stations. The present invention uses a screen-printing process whereby; the screen is stationary, the squeegee is movable, and the short board rocks underneath the print head so that the surface during printing is always parallel to the screen. Compensation for the concave midsection is achieved by using a modified squeegee, which is able to change shape at the precise time.Type: GrantFiled: February 15, 2000Date of Patent: May 29, 2001Inventor: Gregory S. Firth