Patents by Inventor Koichi Yomogida
Koichi Yomogida 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).
-
Patent number: 9914838Abstract: A composition containing a cationic polymer obtained from a reaction product of nitrogen-containing heterocyclic compound and epihalohydrin; and a phosphorus compound. The composition can be used as a surface treatment for gold or gold alloy. The composition can seal pinholes on the surface of the gold or gold alloy.Type: GrantFiled: May 18, 2016Date of Patent: March 13, 2018Assignee: Rohm and Haas Electronic Materials LLCInventors: Yoko Mizuno, Makoto Kondo, Koichi Yomogida, Toshiyuki Morinaga
-
Patent number: 9790606Abstract: To provide a surface treatment solution and treatment method for gold or gold alloy plating that effectively suppresses corrosion of underlying metal or substrate metal from pinholes that develop on the gold or gold alloy plating film. [Solution] A surface treatment solution containing a disulfide compound is brought into contact with a gold or gold alloy plating film. A compound represented by the following formula (2) is preferred as the disulfide compound. X1O3S—R3—S—S—R4—SO3X2??(2) in the formula, R3 and R4 independently represent a linear or branched alkylene group having from 1 to 10 carbon atoms, cyclic alkylene group having from 3 to 10 carbon atoms, or phenylene group, R3 and R4 independently may be substituted by one or more substituents selected from an alkyl group, halogen atom, hydroxyl group, or alkoxy group, and X1 and X2 represent monovalent cations.Type: GrantFiled: November 30, 2014Date of Patent: October 17, 2017Assignee: Rohm and Haas Electronics Materials LLCInventor: Koichi Yomogida
-
Publication number: 20170002211Abstract: A composition containing a cationic polymer obtained from a reaction product of nitrogen-containing heterocyclic compound and epihalohydrin; and a phosphorus compound. The composition can be used as a surface treatment for gold or gold alloy. The composition can seal pinholes on the surface of the gold or gold alloy.Type: ApplicationFiled: May 18, 2016Publication date: January 5, 2017Inventors: Yoko Mizuno, Makoto Kondo, Koichi Yomogida, Toshiyuki Morinaga
-
Patent number: 9212429Abstract: A gold plating bath and a plating method is disclosed where gold cyanide or salts thereof provide the source of gold, a cobalt compound, and a reaction product of compound containing at least a nitrogen-containing heterocyclic compound and an epihalohydrin. The gold plating bath has high deposition selectivity.Type: GrantFiled: November 22, 2011Date of Patent: December 15, 2015Inventors: Koichi Yomogida, Makoto Kondo
-
Publication number: 20150152565Abstract: To provide a surface treatment solution and treatment method for gold or gold alloy plating that effectively suppresses corrosion of underlying metal or substrate metal from pinholes that develop on the gold or gold alloy plating film. [Solution] A surface treatment solution containing a disulfide compound is brought into contact with a gold or gold alloy plating film. A compound represented by the following formula (2) is preferred as the disulfide compound. X1O3S—R3—S—S—R4—SO3X2 ??(2) in the formula, R3 and R4 independently represent a linear or branched alkylene group having from 1 to 10 carbon atoms, cyclic alkylene group having from 3 to 10 carbon atoms, or phenylene group, R3 and R4 independently may be substituted by one or more substituents selected from an alkyl group, halogen atom, hydroxyl group, or alkoxy group, and X1 and X2 represent monovalent cations.Type: ApplicationFiled: November 30, 2014Publication date: June 4, 2015Inventor: Koichi YOMOGIDA
-
Publication number: 20120132533Abstract: A gold plating bath and a plating method is disclosed where gold cyanide or salts thereof provide the source of gold, a cobalt compound, and a reaction product of compound containing at least a nitrogen-containing heterocyclic compound and an epihalohydrin. The gold plating bath has high deposition selectivity.Type: ApplicationFiled: November 22, 2011Publication date: May 31, 2012Applicant: Rohm and Haas Electronic Materials LLCInventors: Koichi YOMOGIDA, Makoto Kondo
-
Patent number: 7534289Abstract: An electroless gold plating solution that can form a gold plating film with excellent adhesion and that does not cause corrosion of a base metal film such as nickel, copper, cobalt, or palladium, or the like.Type: GrantFiled: July 2, 2008Date of Patent: May 19, 2009Assignee: Rohm and Haas Electronic Materials LLCInventor: Koichi Yomogida
-
Patent number: 7374652Abstract: Copper plating baths containing a leveling agent that is a reaction product of a compound including a heteroatom chosen from nitrogen, sulfur and a mixture of nitrogen and sulfur, with a polyepoxide compound containing an ether linkage that deposit copper on the surface of an electronic device and in apertures on such substrate are provided. Such plating baths deposit a copper layer on the substrate surface that is substantially planar across a range of electrolyte concentrations. Methods of depositing copper layers using such copper plating baths are also disclosed.Type: GrantFiled: July 7, 2006Date of Patent: May 20, 2008Assignee: Rohm and Haas Electronic Materials LLCInventors: Shinjiro Hayashi, Hideki Tsuchida, Masaru Kusaka, Koichi Yomogida
-
Publication number: 20070007143Abstract: Copper plating baths containing a leveling agent that is a reaction product of a compound including a heteroatom chosen from nitrogen, sulfur and a mixture of nitrogen and sulfur, with a polyepoxide compound containing an ether linkage that deposit copper on the surface of an electronic device and in apertures on such substrate are provided. Such plating baths deposit a copper layer on the substrate surface that is substantially planar across a range of electrolyte concentrations. Methods of depositing copper layers using such copper plating baths are also disclosed.Type: ApplicationFiled: July 7, 2006Publication date: January 11, 2007Applicant: Rohm and Haas Electronic Materials LLCInventors: Shinjiro Hayashi, Hideki Tsuchida, Masaru Kusaka, Koichi Yomogida
-
Publication number: 20050164020Abstract: This invention offers a composite material with improved binding strength and a method for its manufacture. In particular, the invention offers a composite material having metal at the surface of a resin base, obtained by subjecting the surface of a resin base to an ion exchange group introduction treatment, treating the surface of said resin base with liquid containing metal ions, and then reducing said metal ions, where the aforementioned composite material resin is characterized in that the resin base and metal of said composite material are hot-pressed. Said composite material has superior binding strength between resin base and metal relative to composite materials obtained by electroless plating which have inferior binding strength between resin base and metal. Moreover, said composite material is readily manufactured because hot-press methods can be used in the formation of said composite material.Type: ApplicationFiled: January 24, 2005Publication date: July 28, 2005Applicant: Shipley Company, L.L.C.Inventors: Masaru Seita, Hideki Tsuchida, Masaaki Imanari, Masaru Kusaka, Koichi Yomogida, Hidemi Nawafune, Syozo Mizumoto, Shingo Ikeda
-
Patent number: 6899781Abstract: This invention offers a method for forming a resin composite material, containing the steps of: (1) treating the surface of a carrier resin to treatment introduce ion exchange groups, (2) introducing metal ions to treat the carrier resin surface by treating the surface of said carrier resin with a solution containing metal ions, (3) converting said metal ions to a component containing a metal element, (4) forming a metal foil on top of said component containing a metal element, and (5) transferring said metal foil to a resin substrate by heating said metal foil. This method provides a carrier resin substrate having a metal foil of any desired thickness laminated or cast onto it. In this way a carrier resin containing a metal foil, particularly a copper foil, having a thickness, such as 8 ?m or less, can be prepared that is otherwise difficult to prepare using conventional methods.Type: GrantFiled: November 1, 2002Date of Patent: May 31, 2005Assignee: Shipley Company, L.L.C.Inventors: Masaru Seita, Hideki Tsuchida, Masaaki Imanari, Koichi Yomogida, Hidemi Nawafune
-
Publication number: 20040170846Abstract: A resin composite material which comprises a resin base and a metal-element-containing ingredient disposed on the surface of the base and is obtained by a wet process, characterized by having no catalyst layers. The resin composite material is superior in adhesion between the resin base and the metal-element-containing ingredient and in evenness of the thickness of the metal-element-containing coating film to the resin composite materials obtained by conventional wet processes. The formation of the resin composite material necessitates neither etching nor electroless plating unlike the conventional wet processes. Consequently, the resin composite material can be easily produced without causing pollution attributable to these treatments, such as working atmosphere worsening and the pollution of the global environment.Type: ApplicationFiled: April 3, 2004Publication date: September 2, 2004Inventors: Masaru Seita, Hideki Tsuchida, Masaaki Imanari, Hidemi Nawafune, Koichi Yomogida
-
Publication number: 20040101665Abstract: A composite material having metal at the surface of a resin base is obtained by subjecting the surface of a resin base to ion exchange group introduction treatment, treating the surface of said resin base with liquid containing metal ions to introduce metal ions, introducing photocatalyst into the resin base containing said introduced metal ions, and then irradiating the resin base with electromagnetic radiation after said photocatalyst introduction. Said composite material is useful for composite materials that require fine metal patterns.Type: ApplicationFiled: August 26, 2003Publication date: May 27, 2004Applicant: Shipley Company, L.L.C.Inventors: Masaru Seita, Hideki Tsuchida, Masaaki Imanari, Hidemi Nawafune, Koichi Yomogida
-
Publication number: 20040072015Abstract: This invention offers a composite material with improved binding strength and a method for its manufacture. In particular, the invention offers a composite material having metal at the surface of a resin base, obtained by subjecting the surface of a resin base to an ion exchange group introduction treatment, treating the surface of said resin base with liquid containing metal ions, and then reducing said metal ions, where the aforementioned composite material resin is characterized in that the resin base and metal of said composite material are hot-pressed. Said composite material has superior binding strength between resin base and metal relative to composite materials obtained by electroless plating which have inferior binding strength between resin base and metal. Moreover, said composite material is readily manufactured because hot-press methods can be used in the formation of said composite material.Type: ApplicationFiled: December 27, 2001Publication date: April 15, 2004Applicant: Shipley Company, L.L.C.Inventors: Masaru Seita, Hideki Tsuchida, Masaaki Imanari, Masaru Kusaka, Koichi Yomogida, Hidemi Nawafune, Syozo Mizumoto, Shingo Ikeda
-
Publication number: 20040001957Abstract: This invention offers a method for forming a resin composite material, containing the steps of: (1) treating the surface of a carrier resin to treatment introduce ion exchange groups, (2) introducing metal ions to treat the carrier resin surface by treating the surface of said carrier resin with a solution containing metal ions, (3) converting said metal ions to a component containing a metal element, (4) forming a metal foil on top of said component containing a metal element, and (5) transferring said metal foil to a resin substrate by heating said metal foil. This method provides a carrier resin substrate having a metal foil of any desired thickness laminated or cast onto it. In this way a carrier resin containing a metal foil, particularly a copper foil, having a thickness, such as 8 &mgr;m or less, can be prepared that is otherwise difficult to prepare using conventional methods.Type: ApplicationFiled: November 1, 2002Publication date: January 1, 2004Applicant: Shipley Company, L.L.C.Inventors: Masaru Seita, Hideki Tsuchida, Masaaki Imanari, Koichi Yomogida, Hidemi Nawafune
-
Publication number: 20030003307Abstract: The present invention offers a non-charging resin composite material and method for manufacturing said resin composite material. In particular, a non-charging resin composite material can be manufactured by using liquid containing metal ions to treat the surface of a resin base treated with ion-exchange group introduction agent, thereby introducing metal ions. By then converting said metal ions, a component containing metal element is introduced at the surface of the resin base in such a small amount that charging of the resin base can be prevented, without increasing the low conductivity intrinsic to the resin base to above a certain level, which has been difficult in the past. With said non-charging resin composite material, damage due to the adhesion of dirt or dust on the base is prevented, as is damage to the base caused by static electricity resulting from charging.Type: ApplicationFiled: December 6, 2001Publication date: January 2, 2003Applicant: Shipley Company, L.L.C.Inventors: Hideki Tsuchida, Masaaki Imanari, Koichi Yomogida, Hidemi Nawafune