Patents by Inventor Alec J. Babiarz
Alec J. Babiarz has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20170232465Abstract: A viscous material noncontact jetting system has a jetting dispenser mounted for relative motion with respect to a surface. A control is operable to cause the jetting dispenser to jet a viscous material droplet that is applied to the surface as a viscous material dot. A device, such as a camera or weigh scale, is connected to the control and provides a feedback signal representing a size-related physical characteristic of the dot applied to the surface. The size-related physical characteristics of subsequently applied dots are controlled by heating and cooling, or adjusting a piston stroke in the jetting dispenser, in response to the size-related physical characteristic feedback. Dispensed material volume control and velocity offset compensation are also provided.Type: ApplicationFiled: April 28, 2017Publication date: August 17, 2017Inventors: Ron Abernathy, Alec J. Babiarz, Nicholas Anthony Barendt, Robert Ciardella, James Everett Cooper, Kenneth S. Espenschied, Erik Fiske, Christopher L. Giusti, Patrick R. Jenkins, Alan Lewis, Raymond Andrew Merritt, Naoya Ian Nagano, Horatio Quinones, Thomas Ratledge, Joe Sherman, Floriana Suriawidjaja, Todd Weston
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Patent number: 9636701Abstract: A viscous material noncontact jetting system has a jetting dispenser mounted for relative motion with respect to a surface. A control is operable to cause the jetting dispenser to jet a viscous material droplet that is applied to the surface as a viscous material dot. A device, such as a camera or weigh scale, is connected to the control and provides a feedback signal representing a size-related physical characteristic of the dot applied to the surface. The size-related physical characteristics of subsequently applied dots is controlled by heating and cooling, or adjusting a piston stroke in the jetting dispenser, in response to the size-related physical characteristic feedback. Dispensed material volume control and velocity offset compensation are also provided.Type: GrantFiled: August 7, 2012Date of Patent: May 2, 2017Assignee: Nordson CorporationInventors: Ron Abernathy, Alec J. Babiarz, Nicholas Anthony Barendt, Robert Ciardella, James Everett Cooper, Jr., Kenneth S. Espenschied, Erik Fiske, Christopher L. Giusti, Patrick R. Jenkins, Alan Lewis, Raymond Andrew Merritt, Naoya Ian Nagano, Horatio Quinones, Thomas Ratledge, Joe Sherman, Floriana Suriawidjaja, Todd Weston
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Publication number: 20160189984Abstract: Methods for applying an underfill with vacuum assistance. The method includes receiving a substrate with the surface at least partially covered by a glass-like film that has a top surface of reduced roughness relative to the surface of the substrate, providing the underfill on the top surface of the glass-like film along an exterior edge of the electronic device, evacuating the space to provide a vacuum condition in the open portion of the space, and heating the underfill to cause flow of the underfill toward the exterior edge and into the open portion of the space, wherein the glass-like film reduces trapping of gas under the underfill.Type: ApplicationFiled: March 4, 2016Publication date: June 30, 2016Inventors: Alec J. Babiarz, Horatio Quinones, Thomas L. Ratledge, Jiangang Zhao
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Patent number: 9314882Abstract: Methods for applying an underfill with vacuum assistance. The method may include dispensing the underfill onto a substrate proximate to at least one exterior edge of an electronic device attached to the substrate. A space between the electronic device and the substrate is evacuated through at least one gap in the underfill. The method further includes heating the underfill to cause the underfill to flow into the space. Because a vacuum condition is supplied in the open portion of the space before flow is initiated, the incidence of underfill voiding is lowered.Type: GrantFiled: March 17, 2014Date of Patent: April 19, 2016Assignee: NORDSON CORPORATIONInventors: Alec J. Babiarz, Horatio Quinones, Thomas L. Ratledge, Jiangang Zhao
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Publication number: 20140183248Abstract: Methods for applying an underfill with vacuum assistance. The method may include dispensing the underfill onto a substrate proximate to at least one exterior edge of an electronic device attached to the substrate. A space between the electronic device and the substrate is evacuated through at least one gap in the underfill. The method further includes heating the underfill to cause the underfill to flow into the space. Because a vacuum condition is supplied in the open portion of the space before flow is initiated, the incidence of underfill voiding is lowered.Type: ApplicationFiled: March 17, 2014Publication date: July 3, 2014Applicant: NORDSON CORPORATIONInventors: Alec J. Babiarz, Horatio Quinones, Thomas L. Ratledge, Jiangang Zhao
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Publication number: 20120295405Abstract: Methods for applying an underfill with vacuum assistance. The method may include dispensing the underfill onto a substrate proximate to at least one exterior edge of an electronic device attached to the substrate. A space between the electronic device and the substrate is evacuated through at least one gap in the underfill. The method further includes heating the underfill to cause the underfill to flow into the space. Because a vacuum condition is supplied in the open portion of the space before flow is initiated, the incidence of underfill voiding is lowered.Type: ApplicationFiled: July 13, 2012Publication date: November 22, 2012Applicant: NORDSON CORPORATIONInventors: Alec J. Babiarz, Horatio Quinones, Thomas L. Ratledge, Jiangang Zhao
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Publication number: 20120285990Abstract: A viscous material noncontact jetting system has a jetting dispenser mounted for relative motion with respect to a surface. A control is operable to cause the jetting dispenser to jet a viscous material droplet that is applied to the surface as a viscous material dot. A device, such as a camera or weigh scale, is connected to the control and provides a feedback signal representing a size-related physical characteristic of the dot applied to the surface. The size-related physical characteristics of subsequently applied dots is controlled by heating and cooling, or adjusting a piston stroke in the jetting dispenser, in response to the size-related physical characteristic feedback. Dispensed material volume control and velocity offset compensation are also provided.Type: ApplicationFiled: August 7, 2012Publication date: November 15, 2012Applicant: Nordson CorporationInventors: Ron Abernathy, Alec J. Babiarz, Nicholas Anthony Barendt, Robert Ciardella, James Everett Cooper, JR., Kenneth S. Espenschied, Erik Fiske, Christopher L. Giusti, Patrick R. Jenkins, Alan Lewis, Raymond Andrew Merritt, Naoya Ian Nagano, Horatio Quinones, Thomas Ratledge, Joe Sherman, Floriana Suriawidjaja, Todd Weston
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Patent number: 8257779Abstract: A viscous material noncontact jetting system has a jetting dispenser mounted for relative motion with respect to a surface. A control is operable to cause the jetting dispenser to jet a viscous material droplet that is applied to the surface as a viscous material dot. A device, such as a camera or weigh scale, is connected to the control and provides a feedback signal representing a size-related physical characteristic of the dot applied to the surface. The size-related physical characteristics of subsequently applied dots is controlled by heating and cooling, or adjusting a piston stroke in the jetting dispenser, in response to the size-related physical characteristic feedback. Dispensed material volume control and velocity offset compensation are also provided.Type: GrantFiled: April 4, 2011Date of Patent: September 4, 2012Assignee: Nordson CorporationInventors: Ron Abernathy, Alec J. Babiarz, Nicholas Anthony Barendt, Robert Ciardella, James Everett Cooper, Jr., Kenneth S. Espenschied, Erik Fiske, Christopher L. Giusti, Patrick R. Jenkins, Alan Lewis, Raymond Andrew Merritt, Naoya Ian Nagano, Horatio Quinones, Thomas Ratledge, Joe Sherman, Floriana Suriawidjaja, Todd Weston
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Publication number: 20120178219Abstract: Methods for applying an underfill with vacuum assistance. The method may include dispensing the underfill onto a substrate proximate to at least one exterior edge of an electronic device attached to the substrate. A space between the electronic device and the substrate is evacuated through at least one gap in the underfill. The method further includes heating the underfill to cause the underfill to flow into the space. Because a vacuum condition is supplied in the open portion of the space before flow is initiated, the incidence of underfill voiding is lowered.Type: ApplicationFiled: January 11, 2011Publication date: July 12, 2012Applicant: NORDSON CORPORATIONInventors: Alec J. Babiarz, Thomas L. Ratledge, Horatio Quinones
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Publication number: 20110184569Abstract: A viscous material noncontact jetting system has a jetting dispenser mounted for relative motion with respect to a surface. A control is operable to cause the jetting dispenser to jet a viscous material droplet that is applied to the surface as a viscous material dot. A device, such as a camera or weigh scale, is connected to the control and provides a feedback signal representing a size-related physical characteristic of the dot applied to the surface. The size-related physical characteristics of subsequently applied dots is controlled by heating and cooling, or adjusting a piston stroke in the jetting dispenser, in response to the size-related physical characteristic feedback. Dispensed material volume control and velocity offset compensation are also provided.Type: ApplicationFiled: April 4, 2011Publication date: July 28, 2011Applicant: NORDSON CORPORATIONInventors: Ron Abernathy, Alec J. Babiarz, Nicholas Anthony Barendt, Robert Ciardella, James Everett Cooper, JR., Kenneth S. Espenschied, Erik Fiske, Christopher L. Giusti, Patrick R. Jenkins, Alan Lewis, Raymond Andrew Merritt, Naoya Ian Nagano, Horatio Quinones, Thomas Ratledge, Joe Sherman, Floriana Suriawidjaja, Todd Weston
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Patent number: 7939125Abstract: A viscous material noncontact jetting system has a jetting dispenser mounted for relative motion with respect to a surface. A control is operable to cause the jetting dispenser to jet a viscous material droplet that is applied to the surface as a viscous material dot. A device, such as a camera or weigh scale, is connected to the control and provides a feedback signal representing a size-related physical characteristic of the dot applied to the surface. The size-related physical characteristics of subsequently applied dots is controlled by heating and cooling, or adjusting a piston stroke in the jetting dispenser, in response to the size-related physical characteristic feedback. Dispensed material volume control and velocity offset compensation are also provided.Type: GrantFiled: November 5, 2010Date of Patent: May 10, 2011Assignee: Nordson CorporationInventors: Ron Abernathy, Alec J. Babiarz, Nicholas Anthony Barendt, Robert Ciardella, James Everett Cooper, Jr., Kenneth S. Espenschied, Erik Fiske, Christopher L. Giusti, Patrick R. Jenkins, Alan Lewis, Raymond Andrew Merritt, Naoya Ian Nagano, Horatio Quinones, Thomas Ratledge, Joe Sherman, Floriana Suriawidjaja, Todd Weston
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Publication number: 20110048575Abstract: A viscous material noncontact jetting system has a jetting dispenser mounted for relative motion with respect to a surface. A control is operable to cause the jetting dispenser to jet a viscous material droplet that is applied to the surface as a viscous material dot. A device, such as a camera or weigh scale, is connected to the control and provides a feedback signal representing a size-related physical characteristic of the dot applied to the surface. The size-related physical characteristics of subsequently applied dots is controlled by heating and cooling, or adjusting a piston stroke in the jetting dispenser, in response to the size-related physical characteristic feedback. Dispensed material volume control and velocity offset compensation are also provided.Type: ApplicationFiled: November 5, 2010Publication date: March 3, 2011Applicant: NORDSON CORPORATIONInventors: Ron Abernathy, Alec J. Babiarz, Nicholas Anthony Barendt, Robert Ciardella, James Everett Cooper, JR., Kenneth S. Espenschied, Erik Fiske, Christopher L. Giusti, Patrick R. Jenkins, Alan Lewis, Raymond Andrew Merritt, Naoya Ian Nagano, Horatio Quinones, Thomas Ratledge, Joe Sherman, Floriana Suriawidjaja, Todd Weston
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Patent number: 6955946Abstract: A system for dispensing a viscous material onto a substrate which includes a dispensing element, a viscous material reservoir and a metering device coupled between the reservoir and the dispensing element for metering a variable amount of a viscous material through the dispensing element. The dispensing element and metering device can be moved by a positioner along a predetermined pattern adjacent a surface of a substrate. A weigh scale located adjacent the substrate receives a metered amount of the viscous material and produces signals representative of a variable weight of the material dispensed during a predetermined time interval. A controller adjusts a speed of movement of the positioner along the predetermined pattern to cause the dispensing element to dispense a desired amount of material based on a calculated flow rate.Type: GrantFiled: March 28, 2003Date of Patent: October 18, 2005Assignee: Nordson CorporationInventors: Carlos E. Bouras, Duong T. La., Alan R. Lewis, Mark S. Meier, Alec J. Babiarz
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Publication number: 20040214370Abstract: Methods for underfilling a gap between a component and a component carrier, such as a die joined to a substrate by solder electrical interconnections, with an underfill material. One or more chambers or passageways are provided in either the component carrier at a location beneath the intended position of the component or in the component itself. The component and component carrier are heated and a volume of underfill material is introduced into each passageway. After introduction, the underfill material flows or moves to fill the gap between the component and the component carrier. A fillet may be optionally formed by adjusting the temperature during the underfilling operation.Type: ApplicationFiled: January 27, 2004Publication date: October 28, 2004Applicant: Nordson CorporationInventors: Horatio Quinones, Erik Fiske, Thomas Laferl Ratledge, Alec J. Babiarz, Robert Ciardella
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Publication number: 20030137080Abstract: A system for dispensing a viscous material onto a substrate which includes a dispensing element, a viscous material reservoir and a metering device coupled between the reservoir and the dispensing element for metering a variable amount of a viscous material through the dispensing element. The dispensing element and metering device can be moved by a positioner along a predetermined pattern adjacent a surface of a substrate. A weigh scale located adjacent the substrate receives a metered amount of the viscous material and produces signals representative of a variable weight of the material dispensed during a predetermined time interval. A controller adjusts a speed of movement of the positioner along the predetermined pattern to cause the dispensing element to dispense a desired amount of material based on a calculated flow rate.Type: ApplicationFiled: March 28, 2003Publication date: July 24, 2003Applicant: Nordson CorporationInventors: Carlos E. Bouras, Duong T. La, Alan R. Lewis, Mark S. Meier, Alec J. Babiarz
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Patent number: 6541304Abstract: A system for dispensing a viscous material onto a substrate which includes a dispensing element, a viscous material reservoir and a metering device coupled between the reservoir and the dispensing element for metering a variable amount of a viscous material through the dispensing element. The dispensing element and metering device can be moved by a positioner along a predetermined pattern adjacent a surface of a substrate. A weigh scale located adjacent the substrate receives a metered amount of the viscous material and produces signals representative of a variable weight of the material dispensed during a predetermined time interval. A controller adjusts a speed of movement of the positioner along the predetermined pattern to cause the dispensing element to dispense a desired amount of material based on a calculated flow rate.Type: GrantFiled: March 22, 1999Date of Patent: April 1, 2003Assignee: Nordson CorporationInventors: Carlos E. Bouras, Duong T. La, Andre S. Gamelin, Alan R. Lewis, Mark S. Meier, Alec J. Babiarz
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Patent number: 6352423Abstract: A method and apparatus for underfilling a gap between a multi-sided semiconductor device and a substrate with viscous underfill material. The viscous underfill material is moved into the gap to encapsulate a plurality of electrical interconnections formed between the semiconductor device and the substrate. A seal is provided between the semiconductor device and the substrate to seal the gap along multiple sides of the device, while the gap is left unsealed along at least one side of the device to permit fluid communication with the gap. The viscous underfill material is dispensed adjacent the at least one side of the device along which the gap is unsealed, and a pressure differential is created across the underfill material to draw the underfill material into the gap and thereby encapsulate the electrical interconnections.Type: GrantFiled: May 8, 2000Date of Patent: March 5, 2002Assignee: Nordson CorporationInventors: Alec J. Babiarz, Carlos Edward Bouras, Drusilla Bertone Cursi, Alan Ray Lewis, Jason Thomas Vint
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Patent number: 6255142Abstract: A method and apparatus for underfilling a gap between a multi-sided semiconductor device and a substrate with viscous underfill material. The viscous underfill material is moved into the gap to encapsulate a plurality of electrical interconnections formed between the semiconductor device and the substrate. A seal is provided between the semiconductor device and the substrate to seal the gap along multiple sides of the device, while the gap is left unsealed along at least one side of the device to permit fluid communication with the gap. The viscous underfill material is dispensed adjacent the at least one side of the device along which the gap is unsealed, and a pressure differential is created across the underfill material to draw the underfill material into the gap and thereby encapsulate the electrical interconnections.Type: GrantFiled: October 29, 1999Date of Patent: July 3, 2001Assignee: Nordson CorporationInventors: Alec J. Babiarz, Carlos Edward Bouras, Drusilla Bertone Cursi, Alan Ray Lewis, Jason Thomas Vint
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Patent number: 6173864Abstract: A system for accurately dispensing controlled amounts of viscous material. The system includes a pressurized supply of the viscous material, a dispenser connected with the pressurized supply and a feedback control for ensuring that a discrete dispensed amount corresponds closely to the desired dispensed amount for a particular application. The different methods of feedback control include changing pressure of the pressurized supply after measuring a dispensed amount and comparing the dispensed amount with a stored value representing the desired amount. Another manner of feedback control includes changing an air operating pressure associated with the dispenser. A third type of feedback control includes adjusting the duration that the dispenser is maintained on to dispense the viscous material. Each of these types of feedback control are preferably used in succession, as necessary, to ensure that the desired amount of viscous material is discharged from the dispenser.Type: GrantFiled: April 23, 1999Date of Patent: January 16, 2001Assignee: Nordson CorporationInventors: Michael A. Reighard, John P. Byers, Rick Zakrajsek, Alec J. Babiarz, Alan R. Lewis, Floriana Suriawidjaja
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Patent number: 5913455Abstract: A chamber that communicates with a viscous material reservoir has a flexible resilient diaphragm which forms an exterior wall thereof. An impact mechanism, which may comprise a solenoid actuated hammer, applies a predetermined momentum to the diaphragm for rapidly metering a predetermined minute blob of the viscous material from the chamber through a nozzle. The reservoir is pressurized with gas to force the viscous material into the chamber to refill the same. The chamber is heated to control the viscosity of the material. Dispensing rates in excess of four blobs per second can be achieved. Variations in the height of the nozzle from the surface of the workpiece are not critical to uniform rapid dispensing. An alternate embodiment eliminates the diaphragm and instead rapidly retracts a nozzle relative to a fluid feed conduit to eject very small blobs of viscous material. A strain gauge detects refill of the chamber inside the nozzle and sends a signal to control refill logic circuitry.Type: GrantFiled: February 20, 1997Date of Patent: June 22, 1999Assignee: Nordson CorporationInventors: Duong La, Robert L. Ciardella, Alec J. Babiarz, Carlos E. Bouras