Patents by Inventor Naoya Saiki
Naoya Saiki 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: 9184082Abstract: An adhesive composition including an acrylic polymer, an epoxy thermosetting resin having an unsaturated hydrocarbon group and a thermosetting agent. Also provided is an adhesive sheet having an adhesive layer including the above-mentioned adhesive composition.Type: GrantFiled: November 27, 2007Date of Patent: November 10, 2015Assignee: Lintec CorporationInventors: Naoya Saiki, Isao Ichikawa, Hironori Shizuhata, Osamu Yamazaki
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Patent number: 8545663Abstract: In a process for manufacturing a semiconductor device comprising heating a wiring board on which a chip and an uncured adhesive layer are laminated for curing the adhesive layer, the improvement includes performing a statically pressurizing step before the adhesive layer is cured, in which step the wiring board on which the chip and the uncured adhesive layer are laminated is subjected to a static pressure greater than atmospheric pressure by not less than 0.05 MPa. According to the process, voids are easily eliminated irrespective of the design of the wiring board, and the adhesive is prevented from curling up on the chip.Type: GrantFiled: August 8, 2007Date of Patent: October 1, 2013Assignee: Lintec CorporationInventors: Osamu Yamazaki, Isao Ichikawa, Naoya Saiki
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Patent number: 8247503Abstract: The object of the present invention is to provide an adhesive composition which can form a thinner adhesive layer, which has good storage stability and which can actualize high package reliability even when exposed to severe reflow conditions in a semiconductor package in which a semiconductor chip being reduced in a thickness is mounted, and an adhesive sheet having an adhesive layer comprising the adhesive composition. The adhesive composition of the present invention comprises an epoxy thermosetting resin (A), a thermosetting agent (B) and a thermosetting accelerating agent (C); the thermosetting accelerating agent (C) being soluble in methyl ethyl ketone and inactive as a thermosetting accelerating agent at room temperature.Type: GrantFiled: December 23, 2008Date of Patent: August 21, 2012Assignee: Lintec CorporationInventors: Naoya Saiki, Hironori Shizuhata, Isao Ichikawa
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Publication number: 20120162860Abstract: A chip capacitor (1) includes: a capacitor body (10) from which an anode lead wire (11) and a cathode lead wire (12) are extended out; and a mount portion (20) which is fitted to the capacitor body (10), in which terminal portions (11a and 12a) of the lead wires (11 and 12) are arranged in a board mounting surface (20a) and which is placed on a circuit board. In the chip capacitor (1) in which the terminal portions (11a and 12a) are soldered to the circuit board, the mount portion (20) is formed of a resin containing an organic metal complex compound, and an assistant terminal portion (21) formed by plating a region to which a metal is exposed by applying laser light onto the board mounting surface (20a) is provided.Type: ApplicationFiled: April 18, 2011Publication date: June 28, 2012Inventors: Yutaka Taketani, Hitoshi Yoshizawa, Kazuo Teraji, Naoya Saiki
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Patent number: 7935574Abstract: The invention provides a marking method in which marking is performed on a protective film formed on a work with a high accuracy while suppressing a warpage and, also, a sheet for both protective film forming and dicing which is advantageously used in the method. The marking method comprises irradiating laser light to a laminated structure comprising a support film tensely supported by a ring frame, a protective film releasably laminated on the support film and a work fixed to the protective film, wherein the protective film is irradiated laser light from a side of the support film, to thereby mark the protective film.Type: GrantFiled: November 10, 2005Date of Patent: May 3, 2011Assignee: Lintec CorporationInventors: Naoya Saiki, Tomonori Shinoda, Akie Hamasaki
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Patent number: 7851335Abstract: The object of the present invention is to provide an adhesive composition that enables to produce conforming products with a high manufacturing yield and without breaking or chipping of the chips in the picking-up step and that enables to stably connect a wire without contaminating a wire pad part disposed at the circumference of a bonding surface during a wire bonding step that is performed after die bonding, even in the case of chips being reduced in a thickness. The adhesive composition of the present invention comprises: (A) an acrylic polymer; (B) an epoxy resin; (C) a thermosetting agent; and (D) a silicone compound having a specific side chain.Type: GrantFiled: March 31, 2009Date of Patent: December 14, 2010Assignee: Lintec CorporationInventors: Isao Ichikawa, Naoya Saiki, Hironori Shizuhata
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Patent number: 7842551Abstract: The adhesive composition according to the present invention is characterized by including an acrylic copolymer (A), an epoxy thermosetting resin (B) and a compound (C) having a functional group which can react with an epoxy group and having an unsaturated hydrocarbon group. According to the present invention, the high package reliability can be achieved even when exposed to severe reflow conditions in a package in which a thin semiconductor chip is mounted.Type: GrantFiled: May 23, 2007Date of Patent: November 30, 2010Assignee: Lintec CorporationInventors: Naoya Saiki, Isao Ichikawa, Hironori Shizuhata, Osamu Yamazaki
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Patent number: 7674859Abstract: An adhesive sheet which can actualize a high package reliability wherein there is no separation at the adhesive interface and no package cracking, in a package in which a semiconductor chip being reduced in thickness is mounted under severe reflow conditions after exposure to a hot and humid environment. The adhesive sheet includes a base material and, formed thereon, an adhesive layer having an adhesive composition including an acrylic copolymer (A) containing 20 to 95% by weight of a structural unit derived from a benzyl (meth)acrylate, an epoxy thermosetting resin (B), and a thermosetting agent (C).Type: GrantFiled: June 24, 2008Date of Patent: March 9, 2010Assignee: Lintec CorporationInventors: Naoya Saiki, Isao Ichikawa, Hironori Shizuhata
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Publication number: 20090246913Abstract: The object of the present invention is to provide an adhesive composition that enables to produce conforming products with a high manufacturing yield and without breaking or chipping of the chips in the picking-up step and that enables to stably connect a wire without contaminating a wire pad part disposed at the circumference of a bonding surface during a wire bonding step that is performed after die bonding, even in the case of chips being reduced in a thickness. The adhesive composition of the present invention comprises: (A) an acrylic polymer; (B) an epoxy resin; (C) a thermosetting agent; and (D) a silicone compound having a specific side chain.Type: ApplicationFiled: March 31, 2009Publication date: October 1, 2009Applicant: LINTEC CORPORATIONInventors: Isao Ichikawa, Naoya Saiki, Hironori Shizuhata
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Publication number: 20090246915Abstract: The object of the present invention is to provide an adhesive composition that enables to produce conforming products with a high manufacturing yield and without breaking or chipping of the chips in the picking-up step and that enables to stably connect a wire without contaminating a wire pad part disposed at the circumference of a bonding surface during a wire bonding step that is performed after die bonding, even in the case of chips being reduced in a thickness. The adhesive composition of the present invention comprises: (A) an acrylic polymer; (B) an epoxy resin; (C) a thermosetting agent; and (D) a silicone compound, wherein the silicone compound (D) has one kind of reactive organic functional group and a kinematic viscosity within a specific range.Type: ApplicationFiled: March 31, 2009Publication date: October 1, 2009Applicant: LINTEC CORPORATIONInventors: Isao Ichikawa, Naoya Saiki, Hironori Shizuhata
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Publication number: 20090220783Abstract: An adhesive sheet for dicing and die bonding includes a base material and an adhesive layer releasably laminated on said base material, wherein said adhesive layer has a pressure sensitive adhering property at room temperature and a thermosetting property, the elastic modulus of the adhesive layer before thermosetting is 1.0×103 to 1.0×104 Pa, the melt viscosity at 120° C. of the adhesive layer before thermosetting is 100 to 200 Pa·s, and the time required for the melt viscosity to reach its minimum value is 60 sec or less when the adhesive layer before thermosetting is maintained at a constant temperature of 120° C.Type: ApplicationFiled: May 12, 2009Publication date: September 3, 2009Applicants: Sharp Kabushiki Kaisha, Lintec CorporationInventors: Yasuki FUKUI, Osamu YAMAZAKI, Naoya SAIKI
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Publication number: 20090170284Abstract: The object of the present invention is to provide an adhesive composition which can form a thinner adhesive layer, which has good storage stability and which can actualize high package reliability even when exposed to severe reflow conditions in a semiconductor package in which a semiconductor chip being reduced in a thickness is mounted, and an adhesive sheet having an adhesive layer comprising the adhesive composition. The adhesive composition of the present invention comprises an epoxy thermosetting resin (A), a thermosetting agent (B) and a thermosetting accelerating agent (C); the thermosetting accelerating agent (C) being soluble in methyl ethyl ketone and inactive as a thermosetting accelerating agent at room temperature.Type: ApplicationFiled: December 23, 2008Publication date: July 2, 2009Applicant: LINTEC CORPORATIONInventors: Naoya Saiki, Hironori Shizuhata, Isao Ichikawa
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Publication number: 20090053518Abstract: Described is a sheet for forming a protective film, which can be used suitably in a process where marking is made on the protective film formed on work such as a wafer and the like. The sheet includes a release sheet and a protective film forming layer provided on the release surface of the release sheet, wherein the protective film forming layer includes 100 parts by weight of an epoxy resin, 50 to 200 parts by weight of a binder polymer, and 100 to 2,000 parts by weight of fillers, 30% by weight or more of total 100% by weight of the said epoxy resin being selected from epoxy resins represented by the following formulae (I) and (II); wherein, X's are —O—, —OCH(CH3)O— and the like; R's are a polyether skeleton and the like; and n's are in the range of 1 to 10.Type: ApplicationFiled: March 23, 2007Publication date: February 26, 2009Applicant: LINTEC CORPORATIONInventors: Naoya Saiki, Tomonori Shinoda, Osamu Yamazaki
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Publication number: 20090004829Abstract: An adhesive sheet which can actualize a high package reliability wherein there is no separation at the adhesive interface and no package cracking, in a package in which a semiconductor chip being reduced in thickness is mounted under severe reflow conditions after exposure to a hot and humid environment. The adhesive sheet includes a base material and, formed thereon, an adhesive layer having an adhesive composition including an acrylic copolymer (A) containing 20 to 95% by weight of a structural unit derived from a benzyl(meth)acrylate, an epoxy thermosetting resin (B), and a thermosetting agent (C).Type: ApplicationFiled: June 24, 2008Publication date: January 1, 2009Applicant: LINTEC CORPORATIONInventors: Naoya Saiki, Isao Ichikawa, Hironori Shizuhata
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Publication number: 20080241995Abstract: An adhesive sheet for dicing and die bonding includes a base material and an adhesive layer releasably laminated on said base material, wherein said adhesive layer has a pressure sensitive adhering property at room temperature and a thermosetting property, the elastic modulus of the adhesive layer before thermosetting is 1.0×103 to 1.0×104 Pa, the melt viscosity at 120° C. of the adhesive layer before thermosetting is 100 to 200 Pa·s, and the time required for the melt viscosity to reach its minimum value is 60 sec or less when the adhesive layer before thermosetting is maintained at a constant temperature of 120° C.Type: ApplicationFiled: May 12, 2005Publication date: October 2, 2008Applicants: Sharp Kabushiki Kaisha, Lintec CorporationInventors: Yasuki Fukui, Osamu Yamazaki, Naoya Saiki
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Publication number: 20080242058Abstract: The adhesive composition according to the present invention is characterized by including an acrylic polymer, an epoxy resin having an epoxy equivalent of 180 g/eq or less and a thermosetting agent. According to the present invention, provided are an adhesive composition which can achieve a high package reliability in a package in which a semiconductor chip being reduced in a thickness is mounted even when exposed to severe reflow conditions, an adhesive sheet having an adhesive layer comprising the above adhesive composition and a production process for a semiconductor device using the above adhesive sheet.Type: ApplicationFiled: March 26, 2008Publication date: October 2, 2008Applicant: LINTEC CORPORATIONInventors: Isao Ichikawa, Naoya Saiki, Hironori Shizuhata
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Publication number: 20080124839Abstract: An adhesive composition is characterized by including an acrylic polymer, an epoxy thermosetting resin having an unsaturated hydrocarbon group and a thermosetting agent. The adhesive composition achieves high reliability in a package in which a semiconductor chip of reduced thickness is mounted even when exposed to severe reflow conditions. An adhesive sheet having an adhesive layer comprising the above adhesive composition and a production process for a semiconductor device using the above adhesive sheet are also provided.Type: ApplicationFiled: November 27, 2007Publication date: May 29, 2008Applicant: LINTEC CORPORATIONInventors: Naoya Saiki, Isao Ichikawa, Hironori Shizuhata, Osamu Yamazaki
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Publication number: 20080066856Abstract: In a process for manufacturing a semiconductor device comprising heating a wiring board on which a chip and an uncured adhesive layer are laminated for curing the adhesive layer, the improvement includes performing a statically pressurizing step before the adhesive layer is cured, in which step the wiring board on which the chip and the uncured adhesive layer are laminated is subjected to a static pressure greater than atmospheric pressure by not less than 0.05 MPa. According to the invention, voids are easily eliminated irrespective of a design of the wiring board, and the adhesive is prevented from curling up on the chip.Type: ApplicationFiled: August 8, 2007Publication date: March 20, 2008Applicant: LINTEC CORPORATIONInventors: Osamu YAMAZAKI, Isao ICHIKAWA, Naoya SAIKI
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Publication number: 20070276079Abstract: The adhesive composition according to the present invention is characterized by including an acrylic copolymer (A), an epoxy thermosetting resin (B) and a compound (C) having a functional group which can react with an epoxy group and having an unsaturated hydrocarbon group. According to the present invention, the high package reliability can be achieved even when exposed to severe reflow conditions in a package in which a thin semiconductor chip is mounted.Type: ApplicationFiled: May 23, 2007Publication date: November 29, 2007Applicant: Lintec CorporationInventors: Naoya Saiki, Isao Ichikawa, Hironori Shizuhata, Osamu Yamazaki
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Publication number: 20060252234Abstract: A dicing and die bonding pressure-sensitive adhesive sheet having a pressure-sensitive adhesive layer that exhibits excellent embedding properties in die bonding to thereby prevent formation of voids between die pads and the pressure-sensitive adhesive layer even when chips are mounted on die pads exhibiting great differences in height. The dicing and die bonding pressure-sensitive adhesive sheet comprises a base material and a pressure-sensitive adhesive layer disposed thereon, the pressure-sensitive adhesive layer having a ratio (M100/M70) of a modulus of elasticity at 100° C. (M100) to a modulus of elasticity at 70° C. (M70) of 0.5 or less.Type: ApplicationFiled: July 7, 2004Publication date: November 9, 2006Applicant: Lintec CorporationInventor: Naoya Saiki