Patents by Inventor Anton Nenadic
Anton Nenadic 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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Patent number: 6896784Abstract: A process for electroplating metallic features of different density on a surface of a substrate comprises providing an electroplating bath having an anode, immersing the substrate into the electroplating bath, spaced from the anode, the substrate comprising a cathode. Positioned in the electroplating bath between the substrate and the anode, and adjacent to and separated from the substrate surface is a second cathode that includes a wire mesh screening portion having openings of different sizes conforming to the metallic features to be electroplated. The second cathode screening portion has openings of larger size adjacent areas of higher density of features to be electroplated and openings of smaller size adjacent areas of lower density of features to be electroplated.Type: GrantFiled: June 15, 2004Date of Patent: May 24, 2005Assignee: International Business Machines CorporationInventors: Tien-Jen Cheng, Todd M. Fowler, Ajay P. Giri, Anton Nenadic, Blessen Samuel, Keith Kwong Hon Wong
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Patent number: 6890413Abstract: A process for electroplating metallic features of different density on a surface of a substrate comprises providing an electroplating bath having an anode, immersing the substrate into the electroplating bath, spaced from the anode, the substrate comprising a cathode. Positioned in the electroplating bath between the substrate and the anode, and adjacent to and separated from the substrate surface is a second cathode that includes a wire mesh screening portion having openings of different sizes conforming to the metallic features to be electroplated. The second cathode screening portion has openings of larger size adjacent areas of higher density of features to be electroplated and openings of smaller size adjacent areas of lower density of features to be electroplated.Type: GrantFiled: December 11, 2002Date of Patent: May 10, 2005Assignee: International Business Machines CorporationInventors: Tien-Jen Cheng, Todd M. Fowler, Ajay P. Giri, Anton Nenadic, Blessen Samuel, Keith Kwong Hon Wong
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Publication number: 20040226826Abstract: A process for electroplating metallic features of different density on a surface of a substrate comprises providing an electroplating bath having an anode, immersing the substrate into the electroplating bath, spaced from the anode, the substrate comprising a cathode. Positioned in the electroplating bath between the substrate and the anode, and adjacent to and separated from the substrate surface is a second cathode that includes a wire mesh screening portion having openings of different sizes conforming to the metallic features to be electroplated. The second cathode screening portion has openings of larger size adjacent areas of higher density of features to be electroplated and openings of smaller size adjacent areas of lower density of features to be electroplated.Type: ApplicationFiled: June 15, 2004Publication date: November 18, 2004Applicant: International Business Machines IncorporationInventors: Tien-Jen Cheng, Todd M. Fowler, Ajay P. Giri, Anton Nenadic, Blessen Samuel, Keith Kwong Hon Wong
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Publication number: 20040115932Abstract: A process for electroplating metallic features of different density on a surface of a substrate comprises providing an electroplating bath having an anode, immersing the substrate into the electroplating bath, spaced from the anode, the substrate comprising a cathode. Positioned in the electroplating bath between the substrate and the anode, and adjacent to and separated from the substrate surface is a second cathode that includes a wire mesh screening portion having openings of different sizes conforming to the metallic features to be electroplated. The second cathode screening portion has openings of larger size adjacent areas of higher density of features to be electroplated and openings of smaller size adjacent areas of lower density of features to be electroplated.Type: ApplicationFiled: December 11, 2002Publication date: June 17, 2004Applicant: International Business Machines CorporationInventors: Tien-Jen Cheng, Todd M. Fowler, Ajay P. Giri, Anton Nenadic, Blessen Samuel, Keith Kwong Hon Wong
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Patent number: 6050758Abstract: An apparatus for loading, chamfering and unloading a ceramic or ceramic/polymer substrate for electronic components. An automatic part loader moves substrates in a row as a unit, using a frangible pin to push the parts. The part loader separates the first of the substrates from the rest, and a load pedestal pushes the first substrate up into a loading/unloading nest. The load pedestal is mounted on rods so that the substrate may move laterally to center itself in the nest. The nest then rotates to load the substrate onto a movable process pedestal. The chamfering apparatus includes a pair of spaced, rotatable cutting spindles for chamfering edges and corners on the substrate.Type: GrantFiled: May 6, 1997Date of Patent: April 18, 2000Assignee: International Business Machines CorporationInventors: William Albert Cavaliere, Francis Russell Krug, Alan Piciacchio, Roger Andrew Lewin, Anton Nenadic
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Patent number: 6033289Abstract: An apparatus for processing a ceramic laminate comprising an array of unfired ceramic substrates having intersecting slots in at least two directions formed on a side thereof. The apparatus includes a frame and a vacuum chuck fixture movable with respect to the frame for securing the laminate. A plurality of the blade assemblies are independently movable and adapted for passage through different slots in the laminate to loosen debris therefrom. Each blade assembly comprises a pair of blade portions having opposed and spaced tapered cutting edges biased against the wall of the slot by a spring. The pair of blade portions is adapted for lateral movement during passage along the slot toward and away from the slot wall, wherein one of the blade portion pairs guides the other of the blade portion pairs for contact with the slot wall.Type: GrantFiled: August 25, 1998Date of Patent: March 7, 2000Assignee: International Business Machines CorporationInventors: Glenn L. Cellier, David S. Graboski, Keith A. Markland, Anton Nenadic, Mirvan Wondracek, Alan Zollner
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Patent number: 5871313Abstract: A cutting assembly and an apparatus for self-aligned chamfering of a workpiece are disclosed. The chamfering apparatus includes a mechanism for releasably securing the workpiece in preparation for a chamfering thereof, a cutting assembly, and a mechanism for moving the cutting assembly proximate the securing mechanism between a first position and a second position, wherein the cutting assembly traverses along an edge portion of the workpiece to be chamfered.Type: GrantFiled: March 14, 1997Date of Patent: February 16, 1999Assignee: International Business Machines CorporationInventors: Anton Nenadic, David Scott Graboski, William A. Cavaliere, James Edward Tersigni
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Patent number: 5795217Abstract: A burnisher for disassociating undesirable material from a work piece includes a wire and a burnishing medium operably associated with the wire. The flexibility of the burnisher permits forces to be generated to disassociate the burnishing medium.Type: GrantFiled: November 22, 1995Date of Patent: August 18, 1998Assignee: International Business Machines CorporationInventors: Mark Joseph LaPlante, Thomas Edward Lombardi, David Clifford Long, Anton Nenadic, Alan Piciacchio
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Patent number: 5706568Abstract: An apparatus for loading, chamfering and unloading a ceramic or ceramic/polymer substrate for electronic components. An automatic part loader moves substrates in a row as a unit, using a frangible pin to push the parts. The part loader separates the first of the substrates from the rest, and a load pedestal pushes the first substrate up into a loading/unloading nest. The load pedestal is mounted on rods so that the substrate may move laterally to center itself in the nest. The nest then rotates to load the substrate onto a movable process pedestal. The chamfering apparatus includes a pair of spaced, rotatable cutting spindles for chamfering edges and corners on the substrate.Type: GrantFiled: April 8, 1996Date of Patent: January 13, 1998Assignee: International Business Machines Corp.Inventors: Anton Nenadic, William Albert Cavaliere, Francis Russell Krug, Alan Piciacchio, Roger Andrew Lewin
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Patent number: 5315749Abstract: A method of holding utilizing a fixture with five discrete vacuum elements provides support at four peripheral points on a substrate and at the substrate center. Two peripheral vacuum elements are fixed in position on a rigid frame. The remaining peripheral elements and the center element are fixed to a gimbal disc. This gimbal disc is mounted on the frame in such a way that it has three degrees of rotational movement relative to the frame. Downward pressure of a substrate resting on the two fixed elements, brings all three gimbal disc mounted supports into contact with the substrate, without allowing or causing deflection of the substrate. The mounting is locked, and vacuum is applied to all the elements to secure the substrate in place for the planarizing operation.Type: GrantFiled: September 28, 1992Date of Patent: May 31, 1994Assignee: International Business Machines CorporationInventors: Anton Nenadic, Kenneth Furman, Robert W. Pasco
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Patent number: 5226636Abstract: A holding fixture with five discrete vacuum elements provides support at four peripheral points on a substrate and at the substrate center. Two peripheral vacuum elements are fixed in position on a rigid frame. The remaining peripheral elements and the center element are fixed to a gimbal disc. This gimbal disc is mounted on the frame in such a way that it has three degrees of rotational movement relative to the frame. Downward pressure of a substrate resting on the two fixed elements, brings all three gimbal disc mounted supports into contact with the substrate, without allowing or causing deflection of the substrate. The mounting is locked, and vacuum is applied to all the elements to secure the substrate in place for the planarizing operation.Type: GrantFiled: June 10, 1992Date of Patent: July 13, 1993Assignee: International Business Machines CorporationInventors: Anton Nenadic, Kenneth Furman, Robert W. Pasco
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Patent number: 5084071Abstract: Disclosed is a method of chem-mech polishing an article, preferably an electronic component substrate. The method includes the following steps;obtaining an article having at least two features thereon or therein which have a different etch rate with respect to a particular etchant; andcontacting the article with a polishing pad while contacting the substrate with a slurry containing the etchant wherein the slurry includes abrasive particles wherein the abrasive particles do not include alumina, a transition metal chelated salt, a solvent for the salt, and a small but effective amount of alumina.The chem-mech polishing causes the at least two features to be substantially coplanar. Also disclosed is the chem-mech polishing slurry.Type: GrantFiled: February 23, 1990Date of Patent: January 28, 1992Assignee: International Business Machines CorporationInventors: Anton Nenadic, Robert W. Pasco
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Patent number: 4954142Abstract: Disclosed is a method of chem-mech polishing an electronic component substrate. The method includes the following steps;obtaining a substrate having at least two features thereon or therein which have a different etch rate with respect to a particular etchant; andcontacting the substrate with a polishing pad while contacting the substrate with a slurry containing the etchant wherein the slurry includes abrasive particles, a transition metal chelated salt and a solvent for the salt.The chem-mech polishing causes the at least two features to be substantially coplanar. Also disclosed is the chem-mech polishing slurry.Type: GrantFiled: March 7, 1989Date of Patent: September 4, 1990Assignee: International Business Machines CorporationInventors: Jeffrey W. Carr, Lawrence D. David, William L. Guthrie, Frank B. Kaufman, William J. Patrick, Kenneth P. Rodbell, Robert W. Pasco, Anton Nenadic