公开(公告)号：US10016780B2

公开(公告)日：2018-07-10

申请号：US15153168

申请日：2016-05-12

Applicant: Illinois Tool Works Inc.

Inventor： Scott A. Reid ,  Thomas C. Prentice ,  Patsy A. Mattero

IPC: H01H47/00 ,  B05C5/02 ,  F16K31/06 ,  H05K3/00 ,  H01F7/06

CPC classification number: B05C5/0225 ,  B05C5/0237 ,  B05C11/1034 ,  F16K31/0655 ,  H01F7/064 ,  H05K3/0085 ,  H05K2203/0126

Abstract: A system for dispensing material on a substrate includes a dispensing unit having a dispensing piston. The dispensing piston is pneumatically driven from a first lower position to a second upper position. The system further includes a solenoid valve coupled to the dispensing unit, with the solenoid valve being configured to control air flow to and from the dispensing piston. The solenoid valve includes a solenoid coil and an amplifier connected to the solenoid coil. The system further includes a controller coupled to the amplifier, with the controller being configured to generate a command signal to the amplifier to control current in the solenoid coil.

公开(公告)号：US20170326577A1

公开(公告)日：2017-11-16

申请号：US15153178

申请日：2016-05-12

Applicant: Illinois Tool Works Inc.

Inventor： Thomas C. Prentice

IPC: B05C5/02 ,  H01L21/288 ,  H05K3/12 ,  F16K31/06 ,  H01L21/56 ,  H01L21/02

CPC classification number: B05C5/0225 ,  B05C5/02 ,  B05C11/1002 ,  F16K31/0675 ,  H01L21/02282 ,  H01L21/288 ,  H01L21/56 ,  H05K3/12 ,  H05K2203/0736 ,  H05K2203/1305

Abstract: A method of controlling a dispensing unit is used to dispense material on a substrate. The method includes connecting a solenoid coil of a pneumatically-driven pump to an amplifier output of a dispensing system, and driving the solenoid coil with the amplifier to a cause the pneumatically-driven pump to dispense material on a substrate. The method further may include commanding an idle current to flow in the solenoid coil during periods of inactivity. The idle current may be sufficient to cause warming of the solenoid coil, yet not sufficient to activate the solenoid to an engaged position. The method further may include commanding a first current level to flow in the solenoid coil to rapidly activate the solenoid, and commanding a second current level to flow in the solenoid coil after the solenoid is activated.

公开(公告)号：US09815081B2

公开(公告)日：2017-11-14

申请号：US14630366

申请日：2015-02-24

Applicant: Illinois Tool Works Inc.

Inventor： Scott A. Reid ,  Thomas J. Karlinski ,  Jonathan Joel Bloom ,  Thomas C. Prentice

IPC: B05C5/00 ,  B05C5/02 ,  H05K3/12 ,  G01B11/14 ,  G06T7/00 ,  H05K3/00 ,  B05C21/00 ,  H04N5/225 ,  H04N7/18 ,  H05K13/04 ,  H05K13/08 ,  G06T7/80 ,  H05K3/46

CPC classification number: B05C21/00 ,  G01B11/14 ,  G06T7/0006 ,  G06T7/80 ,  G06T2207/30108 ,  G06T2207/30232 ,  H04N5/2253 ,  H04N7/185 ,  H05K3/0008 ,  H05K3/4676 ,  H05K13/0469 ,  H05K13/08 ,  H05K13/0818 ,  H05K2201/09918 ,  H05K2203/0126 ,  H05K2203/0545 ,  H05K2203/166

Abstract: A method is used to identify and compensate for errors created by changes in the relative positions of a deposition unit and a vision system of a dispenser. The method includes calibrating the vision system, dispensing a pattern of features over a working area, moving the vision system over a deposition location to locate a deposition, obtaining an image of the deposition, tagging data associated with the image, calculating a relative distance between the deposition unit and the vision system, storing correction data with spatial location in a file for later use, and using the stored data to make small corrections prior to dispensing additional material.

公开(公告)号：US20170290168A1

公开(公告)日：2017-10-05

申请号：US15628987

申请日：2017-06-21

Applicant: Illinois Tool Works Inc.

Inventor： Scott A. Reid ,  Hugh R. Read ,  Thomas C. Prentice

IPC: H05K3/00 ,  H05K13/08 ,  H05K3/46

CPC classification number: H05K3/0085 ,  B05C5/0212 ,  B05C11/1021 ,  H05K3/4644 ,  H05K13/0469 ,  H05K13/08

Abstract: A dispensing apparatus includes a frame having a gantry configured to provide movement in the X axis and Y axis directions, and first and second dispensing units coupled to the gantry and configured to dispense material onto a substrate. The second dispensing unit is coupled to the gantry by an automatic adjustment mechanism. The dispensing apparatus further includes a controller configured to control the operation of the gantry, the first dispenser, the second dispenser, and the automatic adjustment mechanism. The automatic adjustment mechanism is configured to move the second dispenser in the X axis and Y axis directions to manipulate a spacing between the first dispensing unit and the second dispensing. Methods of dispensing material on the substrate are further disclosed.

公开(公告)号：US09144818B2

公开(公告)日：2015-09-29

申请号：US13801421

申请日：2013-03-13

Applicant: Illinois Tool Works Inc.

Inventor： Dennis G. Doyle ,  Ronald J. Forget ,  Thomas C. Prentice ,  Patsy A. Mattero

IPC: B05B1/30 ,  B05C5/02 ,  B05C11/10 ,  G01F11/02

CPC classification number: B05C5/0225 ,  B05C11/1034 ,  G01F11/021

Abstract: A dispenser, configured to dispense material on a substrate, includes a dispensing unit having a housing with a chamber, a piston disposed in the chamber and axially movable within the chamber, and a nozzle coupled to the housing. The nozzle has an orifice co-axial with the chamber of the housing. The dispenser further includes an actuator coupled to the dispensing unit and configured to drive the up- and down movement of the piston, and a compliant assembly coupled to the actuator and the piston. The compliant assembly is configured to permit limited relative travel between the actuator and the piston. A method of dispensing is further disclosed.

Abstract translation: 配置成在衬底上分配材料的分配器包括具有壳体的分配单元，所述壳体具有腔室，设置在腔室中并可在腔室内轴向移动的活塞以及联接到壳体的喷嘴。 喷嘴具有与壳体的腔室同轴的孔口。 分配器还包括联接到分配单元并被配置为驱动活塞的上下运动的致动器，以及联接到致动器和活塞的柔性组件。 柔性组件构造成允许致动器和活塞之间的有限的相对行进。 进一步公开了一种分配方法。

公开(公告)号：US11818846B2

公开(公告)日：2023-11-14

申请号：US17575680

申请日：2022-01-14

Applicant: Illinois Tool Works Inc.

Inventor： Thomas C. Prentice ,  Fernando J. Aguiar ,  Scott A. Reid

IPC: H05K13/04 ,  B05C5/02 ,  B05B3/02 ,  B05C13/00 ,  H05K3/12 ,  H01L21/67

CPC classification number: H05K13/0469 ,  B05B3/02 ,  B05C5/0225 ,  B05C13/00 ,  H05K3/1241 ,  H01L21/6715 ,  H05K2203/0126

Abstract: A dispensing system includes a dispensing unit assembly configured to dispense viscous material and a gantry coupled to the frame. The gantry is configured to support the dispensing unit assembly and to move the dispensing unit assembly in x-axis and y-axis directions. The dispensing unit assembly includes a support bracket secured to the gantry and a movable bracket rotatably coupled to the support bracket by a first strain wave gear system configured to enable the rotation of the movable bracket with respect to the support bracket about a first axis. The dispensing unit assembly further includes a dispensing unit rotatably coupled to the movable bracket by a second strain wave gear system configured to enable the rotation of the dispensing unit with respect to the movable bracket about a second axis generally perpendicular to the first axis.

公开(公告)号：US11529696B2

公开(公告)日：2022-12-20

申请号：US17170989

申请日：2021-02-09

Applicant: Illinois Tool Works Inc.

Inventor： Thomas C. Prentice ,  Scott A. Reid ,  Patsy A. Mattero ,  Fernando J. Aguiar

IPC: B23K3/06 ,  B23K3/08

Abstract: A dispensing system includes an optional pre-heat station configured to receive an electronic substrate, a dispense station configured to dispense material on the electronic substrate received from the optional pre-heat station, an optional post-heat station configured to receive the electronic substrate from the dispense station, and a non-contact sensor positioned above the electronic substrate on at least one of the optional pre-heat station, the dispense station, and the optional post-heat station.

公开(公告)号：US20210329820A1

公开(公告)日：2021-10-21

申请号：US16849249

申请日：2020-04-15

Applicant: Illinois Tool Works Inc.

Inventor： Thomas C. Prentice ,  Fernando J. Aguiar ,  Scott A. Reid

IPC: H05K13/04 ,  H05K3/12 ,  B05C13/00 ,  B05C5/02

Abstract: A dispensing system includes a dispensing unit assembly configured to dispense viscous material and a gantry coupled to the frame. The gantry is configured to support the dispensing unit assembly and to move the dispensing unit assembly in x-axis and y-axis directions. The dispensing unit assembly includes a support bracket secured to the gantry and a movable bracket rotatably coupled to the support bracket by a first strain wave gear system configured to enable the rotation of the movable bracket with respect to the support bracket about a first axis. The dispensing unit assembly further includes a dispensing unit rotatably coupled to the movable bracket by a second strain wave gear system configured to enable the rotation of the dispensing unit with respect to the movable bracket about a second axis generally perpendicular to the first axis.

公开(公告)号：US10723117B2

公开(公告)日：2020-07-28

申请号：US15860088

申请日：2018-01-02

Applicant: Illinois Tool Works Inc.

Inventor： Daniel Mariano ,  William A. Losiewicz ,  Thomas C. Prentice

IPC: B41F15/18 ,  H05K3/12 ,  B41F15/36 ,  B41F15/08 ,  B41F15/34 ,  B41F15/26 ,  H05K3/34 ,  H05K13/00

Abstract: A conveyor system for a stencil printer includes a pair of rail members extending through a frame and configured to transport the substrate through the stencil printer. A lift tool assembly is configured to support the substrate at a transport height and a print height. The lift tool assembly includes a lifter portion configured to be engaged by a support of the lift table assembly. A foot of the lifter portion has at least two permanent magnets configured to secure the foot of the lifter portion to the support when engaging the support to the lifter portion, and at least one vacuum pocket formed in a bottom surface of the foot of the lifter portion. The vacuum pocket is configured to selectively secure the lifter portion in place on the support.

公开(公告)号：US20190174633A1

公开(公告)日：2019-06-06

申请号：US15831800

申请日：2017-12-05

Applicant: Illinois Tool Works Inc.

Inventor： Patsy A. Mattero ,  James Lynch ,  Michael E. Donelan ,  Thomas C. Prentice ,  Kenneth J. King

IPC: H05K3/12 ,  H05K3/34 ,  B41F15/08 ,  B41F15/26

Abstract: A print head assembly of a stencil printer includes a print head frame and a wiper blade assembly coupled to the print head frame. The wiper blade assembly includes wiper blades that contact the stencil to print solder paste onto the stencil during a print stroke. The wiper blades are configured to force solder paste through the apertures of the stencil. The print head assembly further includes a dispensing unit coupled to the print head frame. The dispensing unit is disposed between the wiper blades to deposit solder paste between the wiper blades. The dispensing unit includes a cartridge receiver. The print head assembly further includes a cartridge positioned in the cartridge receiver and a sensor coupled to the print head frame proximate the cartridge. The sensor is configured to measure a temperature of the cartridge.