Patents Assigned to Shipley Company, Inc.
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Patent number: 5691395Abstract: Radiation sensitive compositions, processes for using the compositions, and articles of manufacture comprising the compositions. The photoimageable compositions of the invention comprises a radiation sensitive component, a resin binder and a polybutadiene that comprises one or more internal epoxide groups. In preferred aspects, the compositions of the invention further comprise a crosslinking agent such as a melamine or an epoxidized material, or mixtures thereof.Type: GrantFiled: July 12, 1994Date of Patent: November 25, 1997Assignee: Shipley Company Inc.Inventors: Philip D. Knudsen, Charles R. Shipley, Daniel Y. Pai
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Patent number: 5571657Abstract: The invention is a process of removing metal ion contaminants from an organic solution, especially one having acid labile components. The process comprises modifying a cationic exchange resin by treatment with ammonia or amine and contacting said modified ion exchange resin with an organic solution containing metal ion contaminants. The process is especially useful for treating photoresist compositions.Type: GrantFiled: September 30, 1993Date of Patent: November 5, 1996Assignee: Shipley Company, Inc.Inventors: Charles R. Szmanda, Richard J. Carey
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Patent number: 5571886Abstract: An essentially aromatic alkali soluble novolak resin comprising the product resulting from the acid condensation of an aromatic aldehyde and a phenol where the resin has a molecular weight in excess of 1500 and a glass transition temperature in excess of 125.degree. C. If desired, the aromatic novolak resin may be blended with a conventional novolak resin to regulate the glass transition temperature of the resin. The aromatic novolak resin and blends formed therefrom are especially suitable as coating resins and are useful for the formation of photoresist coating compositions.Type: GrantFiled: March 21, 1994Date of Patent: November 5, 1996Assignee: Shipley Company, Inc.Inventor: Anthony Zampini
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Patent number: 5563011Abstract: A color filter assembly comprising a topcoat layer which comprises a composition, wherein the composition in general comprises a crosslinking agent and a reactive resin binder, i.e., a resin that can undergo self-condensation and/or crosslinking with one or more other components of the composition upon thermal treatment or other activation. Preferred resin binders include those resins that contain pendant polar functional groups, particularly acidic moieties such as carboxyl (COOH) and/or hydroxyl (OH). Acrylic resins containing such groups are particularly preferred. Compositions of the invention exhibit low thickness loss and have exceptional light transmission properties. Compositions of the invention are also useful as carriers for pigments and dyes for forming color filter elements.Type: GrantFiled: April 21, 1993Date of Patent: October 8, 1996Assignee: Shipley Company Inc.Inventor: Charles R. Shipley
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Patent number: 5538754Abstract: Processes for uniformly coating substrates, including applying fluid substantially simultaneously onto at least two sides of a substrate. In one aspect, the invention provides positioning a substrate above one or more fluid applicators, and flowing fluid through the one or more fluid applicators upwardly onto the substrate, the fluid applied with a controlled volume per unit surface area of the substrate. A substrate surface also may be aligned along a substantially vertical plane with fluid being applied laterally. In another aspect, at least one fluid applicator faces a first side of a substrate and at least one applicator faces a second side of the substrate, and fluid flows through the fluid applicators onto the first and second substrate sides, the fluid applied with a controlled volume per unit surface area of the substrate.Type: GrantFiled: October 8, 1993Date of Patent: July 23, 1996Assignee: Shipley Company Inc.Inventor: Leonard R. Sandock
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Patent number: 5538820Abstract: The invention provides a method for forming a photoresist mask on a substrate resistant to reticulation during plasma etching. The method comprises the steps of forming an imaged and developed photoresist coating over an integrated circuit substrate where the photoresist contains an essentially unreacted acid activated cross linking agent, and subjecting said substrate to an etching plasma in a gaseous stream that contains a Lewis acid. Contact of the surface of the photoresist film with the Lewis acid causes cross linking of the surface of the photoresist film during plasma etching with the formation of a reticulation resistant surface layer.Type: GrantFiled: August 18, 1993Date of Patent: July 23, 1996Assignee: Shipley Company Inc.Inventor: Thomas A. Fisher
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Patent number: 5518628Abstract: The invention is for a process of removal of ionic contaminants from an organic solution. The process of the invention involves providing a mixed ion exchange resin modified by contact with an ammonium salt of a weak organic acid and contacting said organic solution with said modified exchange resin for a time sufficient to remove ionic impurities therefrom. The invention is useful for removal of ionic contaminants from organic solutions requiring high purity for use.Type: GrantFiled: November 8, 1993Date of Patent: May 21, 1996Assignee: Shipley Company Inc.Inventor: Richard J. Carey
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Patent number: 5510216Abstract: The invention is directed to a process for patterning a substrate in a selective pattern. In one embodiment, the process comprises the steps of forming a patterned coating over a substrate surface whereby portions of the substrate are covered by the patterned coating and portions of the substrate remain uncoated. A layer of a ligating material is coated over at least those portions of the substrate free of the patterned coating. The ligating layer is one that is capable of ligating with an electroless metal plating catalyst. The article so formed is then contacted with an electroless metallization catalyst and then with an electroless plating solution to form a patterned metal deposit on the substrate.Type: GrantFiled: August 29, 1995Date of Patent: April 23, 1996Assignee: Shipley Company Inc.Inventors: Gary S. Calabrese, Jeffrey M. Calvert, Mu-San Chen, Walter J. Dressick, Charles S. Dulcey, Jacque H. Georger, Jr., John F. Bohland, Jr.
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Patent number: 5484518Abstract: A process for electroplating a substrate by coating the substrate with a liquid dispersion of conductive particles selected from the group of metals, metal oxides and metal sulfides, drying the substrate and electroplating over said dried coating. The process is especially useful for the fabrication of printed circuit boards.Type: GrantFiled: March 4, 1994Date of Patent: January 16, 1996Assignee: Shipley Company Inc.Inventor: Robert L. Goldberg
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Patent number: 5472616Abstract: The invention is for a process of removing anions from an organic solution, especially one having base labile components. The process comprises modifying an anion exchange resin by treatment with a solution of a source of anions less basic than the hydroxyl anion and contacting said modified ion exchange resin with an organic solution containing anions. The process is especially useful for treating photoresist compositions.Type: GrantFiled: October 27, 1993Date of Patent: December 5, 1995Assignee: Shipley Company, Inc.Inventors: Charles R. Szmanda, Richard J. Carey
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Patent number: 5443736Abstract: The invention is for a process of removing organic contaminants and multivalent metal ions from solution. The process comprises chelating multivalent metal ions in an organic solution to be purified and contacting the solution with activated carbon. The process is especially useful for removal of multivalent metal ions from a solution of photoresist components.Type: GrantFiled: October 20, 1993Date of Patent: August 22, 1995Assignee: Shipley Company Inc.Inventors: Charles R. Szmanda, Richard J. Carey
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Patent number: 5441770Abstract: A process for promoting the adhesion of metal to thermoplastic substrates such as polyetherimides. The improvement comprises conditioning the substrate by treating with an inorganic hydroxide solution prior to subsequent steps of etching and deposition of a metal coating. Use of the conditioner promotes increased adhesion between the substrate and the metal without loss of flexural strength of the substrate throughout subsequent processing steps.Type: GrantFiled: August 14, 1991Date of Patent: August 15, 1995Assignee: Shipley Company Inc.Inventors: James E. Rychwalski, Paul J. Ciccolo, Robert B. Currie, Philip D. Knudsen
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Patent number: 5419995Abstract: A photoresist comprising a light sensitive component and an alternating copolymer resin formed by condensing a preformed bishydroxymethylated compound and a reactive phenol, in the absence of an aldehyde. Additional useful resins may be formed by further reacting the alternating copolymer with a second reactive phenol in the presence of an aldehyde to form substantially block copolymers. The use of these resins in photoresist formulations leads to improved thermal properties, etch resistance and photospeed.Type: GrantFiled: May 13, 1993Date of Patent: May 30, 1995Assignee: Shipley Company Inc.Inventor: Anthony Zampini
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Patent number: 5415762Abstract: A process for electroplating a nonconducting substrate comprising formation of a film of a conductive polymer on the surface of a nonconducting substrate and electrolytic deposition of metal thereover. The conductive film is formed by deposition of the conductive polymer onto said surface from an aqueous suspension of said polymer.Type: GrantFiled: August 18, 1993Date of Patent: May 16, 1995Assignee: Shipley Company Inc.Inventors: George R. Allardyce, Kevin Bass, John E. Graves, James G. Shelnut
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Patent number: 5397685Abstract: A photoimageable composition and process for use of the same. The composition comprises a binder that is a mixture of a phenolic resin and a multifunctional epoxy or vinyl compound and a curing system comprising a photoactive compound capable of generating a curing catalyst capable of crosslinking the binder components. The process for use of the composition comprises application of the composition to a substrate, drying of the same, exposing the dried coating to activating radiation, curing the binder in light exposed areas, developing the coating and thermally curing the developed image. The composition is especially useful as a solder mask.Type: GrantFiled: November 26, 1993Date of Patent: March 14, 1995Assignee: Shipley Company Inc.Inventors: George R. E. Daniels, Michael J. Oddi, Kevin J. Cheetham, Stephen S. Rodriguez
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Patent number: 5395652Abstract: A process and catalyst for electroless plating of metal over a substrate. The process involves providing a catalyst that is the product of reaction of a noble metal with bromide ions where the ratio of bromide ions to noble metal ions is at least 100 to 1 and the noble metal is present in a concentration sufficient to catalyze an electroless plating reaction, contacting a substrate to be plated with the catalyst, and reducing the catalyst prior to or during plating of the substrate.Type: GrantFiled: January 5, 1994Date of Patent: March 7, 1995Assignee: Shipley Company Inc.Inventors: Roger F. Bernards, Gordon L. Fisher, Wade W. Sonnenberg
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Patent number: 5391421Abstract: A method for electroplating over a nonconducting substrate comprising the steps of applying a thin film of a non-metallic conductive coating having a surface resistivity not exceeding 100 megaohms over said substrate, applying an electrically nonconductive coating over said conductive coating, said nonconductive coating having imaged recesses therein and electroplating metal into said recesses. The method is particularly useful for the manufacture of printed circuit boards.Type: GrantFiled: November 15, 1993Date of Patent: February 21, 1995Assignee: Shipley Company Inc.Inventor: Michael Gulla
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Patent number: 5384229Abstract: The present invention provides photoimageable compositions, processes and articles of manufacture. In particular, the invention provides a process comprising electrophoretically applying a coating layer of a photoimageable composition onto a conductive surface, the composition comprising a material that contains one or more photoacid labile groups. The photoimageable compositions of the invention preferably comprise a photoacid generator, a material that contains one or more acid-clearable functional groups, and a carrier resin that contains one or more functional groups that are, or can be treated to be, at least partially ionized.Type: GrantFiled: May 7, 1992Date of Patent: January 24, 1995Assignee: Shipley Company Inc.Inventors: Daniel Y. Pai, Stephen S. Rodriguez, Roger F. Sinta
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Patent number: 5368993Abstract: The present invention relates to photoresists particularly suitable for deep U.V. exposure and having the capability of forming highly resolved features. The invention is characterized by use of a resist resin binder that comprises a nonaromatic cyclic alcohol-phenol copolymer that has a relatively low molecular weight and narrow distribution of molecular weight and cyclic alcohol concentration.Type: GrantFiled: April 15, 1994Date of Patent: November 29, 1994Assignee: Shipley Company Inc.Inventors: James W. Thackeray, Mark Denison, George W. Orsula
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Patent number: 5366846Abstract: Radiation sensitive compositions, processes for using the compositions, and articles of manufacture comprising the compositions. The photoimageable compositions of the invention comprises a radiation sensitive component, a resin binder and a polybutadiene that comprises one or more internal epoxide groups. In preferred aspects, the compositions of the invention further comprise a crosslinking agent such as a melamine or an epoxidized material, or mixtures thereof.Type: GrantFiled: June 28, 1993Date of Patent: November 22, 1994Assignee: Shipley Company Inc.Inventors: Philip D. Knudsen, Charles R. Shipley, Daniel Y. Pai