Patents by Inventor Bernd Karl Appelt
Bernd Karl Appelt 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: 6225031Abstract: Apertures in a circuit board or chip carrier are filled with a cured photosensitive dielectric material by substantially filling the apertures in the circuit board or chip carrier and applying a layer of a thickness to the circuit board or chip carrier with a positive photosensitive dielectric material, exposing the photosensitive dielectric material to actinic radiation in such a way as to leave material located in apertures unexposed to the radiation; baking the structure so as to harden the unexposed photosensitive dielectric material and developing the exposed dielectric material in order to remove it leaving behind cured photosensitive dielectric material in the apertures.Type: GrantFiled: November 9, 1998Date of Patent: May 1, 2001Assignee: International Business Machines CorporationInventors: Bernd Karl Appelt, Gary Alan Johansson, Konstantinos I. Papathomas
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Patent number: 6114098Abstract: An aperture in an electronic substrate is filled with a filling material without need for a specially built fill mask. A layer of tape or tentable photosensitive dielectric film is applied to one surface of the substrate covering the aperture. An opening is made in the tape or film by directing radiation through the aperture. Fill material is then forced through the opening to substantially fill the aperture. Protruding nubs may be removed to planarize the substrate surfaces.Type: GrantFiled: September 17, 1998Date of Patent: September 5, 2000Assignee: International Business Machines CorporationInventors: Bernd Karl Appelt, John Steven Kresge, John Matthew Lauffer, Kostas I. Papathomas
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Patent number: 6096665Abstract: A method for coating cloth especially fiberglass sheets with a resin and resulting structure is provided. The coating is performed in two steps. In the first step, essentially all of the strands of the fiberglass are coated with the resin solvent mixture as well as most of the interstices or openings, although some of the interstices or openings have holes where the coating does not completely fill in. This first coating is then partially cured to the extent that it will not redissolve in a second coating of the same resin solution. The coated fiberglass with partially cured resin thereon is then given a second coating of the same resin mixture which coats the first coating and fills in any holes in the first coating. This second coating is then partially cured, which advances the cure of the first coating and results in an impregnated fiberglass cloth structure for use as sticker sheets. This substantially reduces pinholing.Type: GrantFiled: July 9, 1997Date of Patent: August 1, 2000Assignee: International Business Machines CorporationInventors: Bernd Karl Appelt, Robert Maynard Japp, Kostantinos Papathomas, William John Rudik
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Patent number: 6080684Abstract: A method for coating cloth especially fiberglass sheets with a thermosetting resin and resulting structure is provided. The coating is performed in two steps. In the first step, essentially all of the strands of the fiberglass are coated with the resin/solvent mixture while maintaining at least some of the interstices or openings essentially free of the solvent mixture. This first coating is then partially cured to between about 70% and 90% of full cure. The coated fiberglass with partially cured resin thereon is then given a second coating of either the same or different thermosetting resin mixture which coats the first coating and fills in the interstices between the fibers. This second coating is then partially cured, which advances the cure of the first coating past 80% full cure and results in an impregnated fiberglass cloth structure for use as sticker sheets.Type: GrantFiled: March 23, 1999Date of Patent: June 27, 2000Assignee: International Business Machines CorporationInventors: Bernd Karl Appelt, William Thomas Fotorny, Robert Maynard Japp, Kostantinos Papathomas, Mark David Poliks
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Patent number: 6071559Abstract: A method for coating cloth especially fiberglass sheets with a thermosetting resin and resulting structure is provided. The coating is performed in two steps. In the first step, essentially all of the strands of the fiberglass are coated with the resin/solvent mixture while maintaining at least some of the interstices or openings essentially free of the solvent mixture. This first coating is then partially cured to between about 70% and 90% of full cure. The coated fiberglass with partially cured resin thereon is then given a second coating of either the same or different thermosetting resin mixture which coats the first coating and fills in the interstices between the fibers. This second coating is then partially cured, which advances the cure of the first coating past 80% full cure and results in an impregnated fiberglass cloth structure for use as sticker sheets.Type: GrantFiled: March 23, 1999Date of Patent: June 6, 2000Assignee: International Business Machines CorporationInventors: Bernd Karl Appelt, William Thomas Fotorny, Robert Maynard Japp, Kostantinos Papathomas, Mark David Poliks
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Patent number: 5928970Abstract: A method for coating cloth especially fiberglass sheets with a thermosetting resin and resulting structure is provided. The coating is performed in two steps. In the first step, essentially all of the strands of the fiberglass are coated with the resin/solvent mixture while maintaining at least some of the interstices or openings essentially free of the solvent mixture. This first coating is then partially cured to between about 70% and 90% of full cure. The coated fiberglass with partially cured resin thereon is then given a second coating of either the same or different thermosetting resin mixture which coats the first coating and fills in the interstices between the fibers. This second coating is then partially cured, which advances the cure of the first coating past 80% full cure and results in an impregnated fiberglass cloth structure for use as sticker sheets.Type: GrantFiled: January 21, 1998Date of Patent: July 27, 1999Assignee: International Business Machines Corp.Inventors: Bernd Karl Appelt, William Thomas Fotorny, Robert Maynard Japp, Kostantinos Papathomas, Mark David Poliks
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Patent number: 5919525Abstract: A method and resultant article are provided which optimize the adhesion of resin to the glass fibers in fiberglass cloth impregnated with a resin and also optimize the adhesion of the impregnated resin to metal sheets laminated to the resin-impregnated cloth. The fiberglass is treated in two or more passes. On the first pass, the fiberglass is impregnated with a first resin which is optimized for adherence to glass fibers and the coated resin is partially cured. In a last pass, the fiberglass is impregnated with a second resin, which is different from said first resin, and is optimized for bonding to metal. The second resin is then partially cured. The first and second resins are selected such that they form a bond with each other when cured.Type: GrantFiled: July 9, 1997Date of Patent: July 6, 1999Assignee: International Business Macjines CoporationInventors: Bernd Karl Appelt, Robert Maynard Japp, Kostantinos Papathomas, William John Rudik
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Patent number: 5874370Abstract: A method and resultant article are provided which optimize the adhesion of resin to the glass fibers in fiberglass cloth impregnated with a resin and also optimize the adhesion of the impregnated resin to metal sheets laminated to the resin-impregnated cloth. The fiberglass is treated in two or more passes. On the first pass, the fiberglass is impregnated with a first resin which is optimized for adherence to glass fibers and the coated resin is partially cured. In a last pass, the fiberglass is impregnated with a second resin, which is different from said first resin, and is optimized for bonding to metal. The second resin is then partially cured. The first and second resins are selected such that they form a bond with each other when cured.Type: GrantFiled: July 9, 1997Date of Patent: February 23, 1999Assignee: International Business Machines CorporationInventors: Bernd Karl Appelt, Robert Maynard Japp, Kostantinos Papathomas, William John Rudik
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Patent number: 5871819Abstract: A method for coating cloth especially fiberglass sheets with a resin and resulting structure is provided. The coating is performed in two steps. In the first step, essentially all of the strands of the fiberglass are coated with the resin solvent mixture as well as most of the interstices or openings, although some of the interstices or openings have holes where the coating does not completely fill in. This first coating is then partially cured to the extent that it will not redissolve in a second coating of the same resin solution. The coated fiberglass with partially cured resin thereon is then given a second coating of the same resin mixture which coats the first coating and fills in any holes in the first coating. This second coating is then partially cured, which advances the cure of the first coating and results in an impregnated fiberglass cloth structure for use as sticker sheets. This substantially reduces pinholing.Type: GrantFiled: July 9, 1997Date of Patent: February 16, 1999Assignee: International Business Machines CorporationInventors: Bernd Karl Appelt, Robert Maynard Japp, Kostantinos Papathomas, William John Rudik
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Patent number: 5866203Abstract: A method and resultant article are provided which optimize the adhesion of resin to the glass fibers in fiberglass cloth impregnated with a resin and also optimize the adhesion of the impregnated resin to metal sheets laminated to the resin-impregnated cloth. The fiberglass is treated in two or more passes. On the first pass, the fiberglass is impregnated with a first resin which is optimized for adherence to glass fibers and the coated resin is partially cured. In a last pass, the fiberglass is impregnated with a second resin, which is different from said first resin, and is optimized for bonding to metal. The second resin is then partially cured. The first and second resins are selected such that they form a bond with each other when cured.Type: GrantFiled: July 9, 1997Date of Patent: February 2, 1999Assignee: International Business Machines CorporationInventors: Bernd Karl Appelt, Robert Maynard Japp, Kostantinos Papathomas, William John Rudik
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Patent number: 5858461Abstract: A method for coating cloth especially fiberglass sheets with a resin and resulting structure is provided. The coating is performed in two steps. In the first step, essentially all of the strands of the fiberglass are coated with the resin solvent mixture as well as most of the interstices or openings, although some of the interstices or openings have holes where the coating does not completely fill in. This first coating is then partially cured to the extent that it will not redissolve in a second coating of the same resin solution. The coated fiberglass with partially cured resin thereon is then given a second coating of the same resin mixture which coats the first coating and fills in any holes in the first coating. This second coating is then partially cured, which advances the cure of the first coating and results in an impregnated fiberglass cloth structure for use as sticker sheets. This substantially reduces pinholing.Type: GrantFiled: July 9, 1997Date of Patent: January 12, 1999Assignee: International Business Machines CorporationInventors: Bernd Karl Appelt, Robert Maynard Japp, Kostantinos Papathomas, William John Rudik
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Patent number: 5800874Abstract: A method for coating cloth especially fiberglass sheets with a resin and resulting structure is provided. The coating is performed in two steps. In the first step, essentially all of the strands of the fiberglass are coated with the resin solvent mixture while maintaining the interstices or openings essentially free of the solvent mixture. This first coating is then partially cured to the extent that it will not redissolve in a second coating of the same resin solution. The coated fiberglass with partially cured resin thereon is then given a second coating of the same resin mixture which coats the first coating and fills in the interstices between the fibers. This second coating is then partially cured, which advances the cure of the first coating and results in an impregnated fiberglass cloth structure for use as sticker sheets.Type: GrantFiled: July 9, 1997Date of Patent: September 1, 1998Assignee: International Business Machines CorporationInventors: Bernd Karl Appelt, William Thomas Fotorny, Robert Maynard Japp, Kostantinos Papathomas, Mark David Poliks
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Patent number: 5783252Abstract: A method for coating cloth especially fiberglass sheets with a resin and resulting structure is provided. The coating is performed in two steps. In the first step, essentially all of the strands of the fiberglass are coated with the resin solvent mixture while maintaining the interstices or openings essentially free of the solvent mixture. This first coating is then partially cured to the extent that it will not redissolve in a second coating of the same resin solution. The coated fiberglass with partially cured resin thereon is then given a second coating of the same resin mixture which coats the first coating and fills in the interstices between the fibers. This second coating is then partially cured, which advances the cure of the first coating and results in an impregnated fiberglass cloth structure for use as sticker sheets.Type: GrantFiled: July 9, 1997Date of Patent: July 21, 1998Assignee: International Business Machines CorporationInventors: Bernd Karl Appelt, William Thomas Fotorny, Robert Maynard Japp, Kostantinos Papathomas, Mark David Poliks
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Patent number: 5780366Abstract: A method and resultant article are provided which optimize the adhesion of resin to the glass fibers in fiberglass cloth impregnated with a resin and also optimize the adhesion of the impregnated resin to metal sheets laminated to the resin-impregnated cloth. The fiberglass is treated in two or more passes. On the first pass, the fiberglass is impregnated with a first resin which is optimized for adherence to glass fibers and the coated resin is partially cured. In a last pass, the fiberglass is impregnated with a second resin, which is different from said first resin, and is optimized for bonding to metal. The second resin is then partially cured. The first and second resins are selected such that they form a bond with each other when cured.Type: GrantFiled: September 10, 1996Date of Patent: July 14, 1998Assignee: International Business Machines CorporationInventors: Bernd Karl Appelt, Robert Maynard Japp, Kostantinos Papathomas, William John Rudik
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Patent number: 5773371Abstract: A method for coating cloth especially fiberglass sheets with a resin and resulting structure is provided. The coating is performed in two steps. In the first step, essentially all of the strands of the fiberglass are coated with the resin solvent mixture while maintaining the interstices or openings essentially free of the solvent mixture. This first coating is then partially cured to the extent that it will not redissolve in a second coating of the same resin solution. The coated fiberglass with partially cured resin thereon is then given a second coating of the same resin mixture which coats the first coating and fills in the interstices between the fibers. This second coating is then partially cured, which advances the cure of the first coating and results in an impregnated fiberglass cloth structure for use as sticker sheets.Type: GrantFiled: July 9, 1997Date of Patent: June 30, 1998Assignee: International Business Machines CorporationInventors: Bernd Karl Appelt, William Thomas Fotorny, Robert Maynard Japp, Kostantinos Papathomas, Mark David Poliks
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Patent number: 5756405Abstract: A method for coating cloth especially fiberglass sheets with a resin and resulting structure is provided. The coating is performed in two steps. In the first step, essentially all of the strands of the fiberglass are coated with the resin solvent mixture while maintaining the interstices or openings essentially free of the solvent mixture. This first coating is then partially cured to the extent that it will not redissolve in a second coating of the same resin solution. The coated fiberglass with partially cured resin thereon is then given a second coating of the same resin mixture which coats the first coating and fills in the interstices between the fibers. This second coating is then partially cured, which advances the cure of the first coating and results in an impregnated fiberglass cloth structure for use as sticker sheets.Type: GrantFiled: September 10, 1996Date of Patent: May 26, 1998Assignee: International Business Machines CorporationInventors: Bernd Karl Appelt, William Thomas Fotorny, Robert Maynard Japp, Kostantinos Papathomas, Mark David Poliks
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Patent number: 5719090Abstract: A method for coating cloth especially fiberglass sheets with a resin and resulting structure is provided. The coating is performed in two steps. In the first step, essentially all of the strands of the fiberglass are coated with the resin solvent mixture as well as most of the interstices or openings, although some of the interstices or openings have holes where the coating does not completely fill in. This first coating is then partially cured to the extent that it will not redissolve in a second coating of the same resin solution. The coated fiberglass with partially cured resin thereon is then given a second coating of the same resin mixture which coats the first coating and fills in any holes in the first coating. This second coating is then partially cured, which advances the cure of the first coating and results in an impregnated fiberglass cloth structure for use as sticker sheets. This substantially reduces pinholing.Type: GrantFiled: September 10, 1996Date of Patent: February 17, 1998Assignee: International Business Machines CorporationInventors: Bernd Karl Appelt, Robert Maynard Japp, Kostantinos Papathomas, William John Rudik