Patents by Inventor Tatsuhiko Asakawa
Tatsuhiko Asakawa 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: 8018057Abstract: A semiconductor device includes: a semiconductor substrate that has an integrated circuit and an electrode electrically connected to the integrated circuit; a first resin layer that is formed in a first region overlapping the integrated circuit over a surface of the semiconductor substrate where the electrode is formed; a wiring that is electrically connected to the electrode and is formed on the first resin layer; and a second resin layer that is formed on the surface of the semiconductor substrate in a second region surrounding the first region, is the second resin layer being spaced a distance from the first resin layer.Type: GrantFiled: February 20, 2008Date of Patent: September 13, 2011Assignee: Seiko Epson CorporationInventor: Tatsuhiko Asakawa
-
Patent number: 8008182Abstract: A method for manufacturing a semiconductor device includes: a) preparing a structure including a semiconductor substrate, an electrode provided on a first surface of the semiconductor substrate, and an insulation film provided on the first surface and having an opening positioned on a first part of the electrode; b) forming a first metal layer from an upper surface of the first part of the electrode to an upper surface of the insulation film; c) forming a resin layer on a first part of the first metal layer, which is positioned on the first part of the electrode, and on the insulation film after the step b); d) removing at least a second part of the resin layer, which is positioned on the first part of the first metal layer, in a manner to leave a first part of the resin layer so as to form a resin protrusion; and e) forming a second metal layer, which is electrically connected with the electrode, from an upper surface of the first metal layer to an upper surface of the resin protrusion.Type: GrantFiled: January 13, 2010Date of Patent: August 30, 2011Assignee: Seiko Epson CorporationInventor: Tatsuhiko Asakawa
-
Patent number: 7790595Abstract: A method for manufacturing a semiconductor device comprises (a) forming a resin layer that includes at least a plurality of a first and a second resin parts, being separated from each other, over a semiconductor substrate having an electrode pad and a passivation film; (b) forming a resin projection in which the first and the second resin parts are integrated by curing the resin layer; and (c) forming a conductive layer that is being connected electrically to the electrode pad and extending over the resin projection, wherein in process (a), the second resin part is formed at least between the electrode pad and the first resin part at a width less than the first resin part.Type: GrantFiled: July 5, 2006Date of Patent: September 7, 2010Assignee: Seiko Epson CorporationInventors: Tatsuhiko Asakawa, Shuichi Tanaka, Hideo Imai
-
Publication number: 20100201001Abstract: A method for manufacturing a semiconductor device includes: a) preparing a structure including a semiconductor substrate, an electrode provided on a first surface of the semiconductor substrate, and an insulation film provided on the first surface and having an opening positioned on a first part of the electrode; b) forming a first metal layer from an upper surface of the first part of the electrode to an upper surface of the insulation film; c) forming a resin layer on a first part of the first metal layer, which is positioned on the first part of the electrode, and on the insulation film after the step b); d) removing at least a second part of the resin layer, which is positioned on the first part of the first metal layer, in a manner to leave a first part of the resin layer so as to form a resin protrusion; and e) forming a second metal layer, which is electrically connected with the electrode, from an upper surface of the first metal layer to an upper surface of the resin protrusion.Type: ApplicationFiled: January 13, 2010Publication date: August 12, 2010Applicant: SEIKO EPSON CORPORATIONInventor: Tatsuhiko ASAKAWA
-
Patent number: 7750468Abstract: A semiconductor device includes: a semiconductor substrate that has an integrated circuit, a passivation film formed above the integrated circuit, and an electrode electrically connected to the integrated circuit, the passivation film having an uneven surface, the electrode having at least a portion exposed through the passivation film; a first resin layer that is disposed on the passivation film; a second resin layer that covers the passivation film and the first resin layer; and a wiring that extends from the electrode to a first part of the second resin layer above the first resin layer, the electrode passing on a second part of the second resin layer above the passivation film.Type: GrantFiled: February 18, 2008Date of Patent: July 6, 2010Assignee: Seiko Epson CorporationInventor: Tatsuhiko Asakawa
-
Patent number: 7728424Abstract: A semiconductor device including: a semiconductor substrate having an electrode; a resin protrusion formed on a surface of the semiconductor substrate on which the electrode is formed, the resin protrusion extending along a straight line and having a sloping region of which a height decreases along the straight line as a distance from a center of the resin protrusion increases; and an interconnect electrically connected to the electrode and extending over the sloping region of the resin protrusion.Type: GrantFiled: July 27, 2006Date of Patent: June 1, 2010Assignee: Seiko Epson CorporationInventors: Tatsuhiko Asakawa, Hiroki Kato
-
Patent number: 7582967Abstract: A semiconductor device including: a semiconductor chip having an electrode; a plurality of resin protrusions formed on a surface of the semiconductor chip on which the electrode is formed, heights of the resin protrusions increasing as a distance from a center of the surface of the semiconductor chip increases; and an interconnect electrically connected to the electrode and formed over one of the resin protrusions.Type: GrantFiled: July 27, 2006Date of Patent: September 1, 2009Assignee: Seiko Epson CorporationInventor: Tatsuhiko Asakawa
-
Publication number: 20080197486Abstract: A semiconductor device includes: a semiconductor substrate that has an integrated circuit and an electrode electrically connected to the integrated circuit; a first resin layer that is formed in a first region overlapping the integrated circuit over a surface of the semiconductor substrate where the electrode is formed; a wiring that is electrically connected to the electrode and is formed on the first resin layer; and a second resin layer that is formed on the surface of the semiconductor substrate in a second region surrounding the first region, is the second resin layer being spaced a distance from the first resin layer.Type: ApplicationFiled: February 20, 2008Publication date: August 21, 2008Applicant: SEIKO EPSON CORPORATIONInventor: Tatsuhiko ASAKAWA
-
Publication number: 20080197505Abstract: A semiconductor device includes: a semiconductor substrate that has an integrated circuit, a passivation film formed above the integrated circuit, and an electrode electrically connected to the integrated circuit, the passivation film having an uneven surface, the electrode having at least a portion exposed through the passivation film; a first resin layer that is disposed on the passivation film; a second resin layer that covers the passivation film and the first resin layer; and a wiring that extends from the electrode to a first part of the second resin layer above the first resin layer, the electrode passing on a second part of the second resin layer above the passivation film.Type: ApplicationFiled: February 18, 2008Publication date: August 21, 2008Applicant: SEIKO EPSON CORPORATIONInventor: Tatsuhiko ASAKAWA
-
Publication number: 20070029652Abstract: A semiconductor device including: a semiconductor substrate having an electrode; a resin protrusion formed on a surface of the semiconductor substrate on which the electrode is formed, the resin protrusion extending along a straight line and having a sloping region of which a height decreases along the straight line as a distance from a center of the resin protrusion increases; and an interconnect electrically connected to the electrode and extending over the sloping region of the resin protrusion.Type: ApplicationFiled: July 27, 2006Publication date: February 8, 2007Applicant: SEIKO EPSON CORPORATIONInventors: Tatsuhiko Asakawa, Hiroki Kato
-
Publication number: 20070023903Abstract: A semiconductor device including: a semiconductor chip having an electrode; a plurality of resin protrusions formed on a surface of the semiconductor chip on which the electrode is formed, heights of the resin protrusions increasing as a distance from a center of the surface of the semiconductor chip increases; and an interconnect electrically connected to the electrode and formed over one of the resin protrusions.Type: ApplicationFiled: July 27, 2006Publication date: February 1, 2007Applicant: SEIKO EPSON CORPORATIONInventor: Tatsuhiko Asakawa
-
Publication number: 20070010045Abstract: A method for manufacturing a semiconductor device comprises (a) forming a resin layer that includes at least a plurality of a first and a second resin parts, being separated from each other, over a semiconductor substrate having an electrode pad and a passivation film; (b) forming a resin projection in which the first and the second resin parts are integrated by curing the resin layer; and (c) forming a conductive layer that is being connected electrically to the electrode pad and extending over the resin projection, wherein in process (a), the second resin part is formed at least between the electrode pad and the first resin part at a width less than the first resin part.Type: ApplicationFiled: July 5, 2006Publication date: January 11, 2007Applicant: SEIKO EPSON CORPORATIONInventors: Tatsuhiko ASAKAWA, Shuichi TANAKA, Hideo IMAI