Patents Assigned to ROHM
  • Patent number: 8765001
    Abstract: Monocrystalline semiconductor substrates are textured with alkaline solutions to form pyramid structures on their surfaces to reduce incident light reflectance and improve light absorption of the wafers. The alkaline baths include hydantoin compounds and derivatives thereof in combination with alkoxylated glycols to inhibit the formation of flat areas between pyramid structures to improve the light absorption.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: July 1, 2014
    Assignee: Rohm and Haas Electronic Materials LLC
    Inventors: Michael P. Toben, Robert K. Barr, Corey O'Connor
  • Patent number: 8766317
    Abstract: Provided is a semiconductor device in which on-resistance is largely reduced based on a new principle of operation. In the semiconductor device, if an embedded electrode is at negative potential, a depletion layer is formed from a trench to a neighboring trench so that a channel is turned off. If the embedded electrode is at a positive potential, the depletion layer is not formed in every region between the neighboring trenches so that the channel is turned on.
    Type: Grant
    Filed: June 17, 2008
    Date of Patent: July 1, 2014
    Assignee: Rohm Co., Ltd.
    Inventor: Masaru Takaishi
  • Patent number: 8766421
    Abstract: A semiconductor power module according to the present invention includes a base member, a semiconductor power device having a surface and a rear surface with the rear surface bonded to the base member, a metal block, having a surface and a rear surface with the rear surface bonded to the surface of the semiconductor power device, uprighted from the surface of the semiconductor power device in a direction separating from the base member and employed as a wiring member for the semiconductor power device, and an external terminal bonded to the surface of the metal block for supplying power to the semiconductor power device through the metal block.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: July 1, 2014
    Assignee: Rohm Co., Ltd.
    Inventor: Toshio Hanada
  • Patent number: 8766325
    Abstract: A semiconductor device includes: an n?-type base layer; a p-type base layer formed in a part of a front surface portion of the n?-type base layer; an n+-type source layer formed in a part of a front surface portion of the p-type base layer; a gate insulating film formed on the front surface of the p-type base layer between the n+-type source layer and the n?-type base layer; a gate electrode that faces the p-type base layer through the gate insulating film; a p-type column layer formed continuously from the p-type base layer in the n?-type base layer; a p+-type collector layer formed in a part of a rear surface portion of the n?-type base layer; a source electrode electrically connected to the n+-type source layer; and a drain electrode electrically connected to the n?-type base layer and to the p+-type collector layer.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: July 1, 2014
    Assignee: Rohm Co., Ltd.
    Inventors: Toshio Nakajima, Syoji Higashida
  • Publication number: 20140174322
    Abstract: An organic solderability preservative solution includes pyrazine derivatives which inhibit corrosion of metal. The solution is applied to metal surfaces of components for electronic apparatus to improve solderability of electrical connections between the components in the electronic apparatus.
    Type: Application
    Filed: December 20, 2012
    Publication date: June 26, 2014
    Applicant: ROHM AND HAAS ELECTRONIC MATERIALS LLC
    Inventors: Qin TANG, Kit Ho TONG, Chit Yiu CHAN, Martin W. BAYES
  • Publication number: 20140179582
    Abstract: The invention provides a process for removing a film from a substrate, said process comprising applying a composition to the film, and wherein the composition comprises at least the following: a) water; and b) at least one compound selected from the following compounds (i-v): i) NR4HF2 (Formula 1), wherein R?H, alkyl, substituted alkyl, ii) NR4F (Formula 2), wherein R?H, alkyl, substituted alkyl, iii) HF (hydrofluoric acid), iv) H2SiF6 (hexafluorosilicic acid), or v) combinations thereof. The invention also provides a composition comprising at least the following: a) water; and b) at least one compound selected from the following compounds (i-v): i) NR4HF2 (Formula 1), wherein R?H, alkyl, substituted alkyl, ii) NR4F (Formula 2), wherein R?H, alkyl, substituted alkyl, iii) HF (hydrofluoric acid), iv) H2SiF6 (hexafluorosilicic acid), or v) combinations thereof.
    Type: Application
    Filed: March 6, 2013
    Publication date: June 26, 2014
    Applicant: Rohm and Haas Electronic Materials LLC
    Inventors: Deyan Wang, Martin W. Bayes, Peter Trefonas, Kathleen M. O'connell
  • Publication number: 20140179823
    Abstract: The present invention provides low solvent or substantially solvent-free multi-ethylenically unsaturated acrylate composition imbibed particles of an acid functional group containing acrylic polymer for ultraviolet curing coating applications and methods of making the same wherein the acrylic polymer is formed by polymerizing in organic solvent, then neutralized and combined with a multi-ethylenically unsaturated acrylate composition prior to dispersing the mixture into water and, preferably, removing solvent.
    Type: Application
    Filed: December 16, 2013
    Publication date: June 26, 2014
    Applicant: Rohm and Haas Company
    Inventors: Andrew Hejl, Eric Greyson, Wenqin Wang
  • Publication number: 20140175999
    Abstract: It is provided an LED lighting device calibratable to 0 to 100% of wide range about a chromaticity and luminance of a illumination light by a simple configuration, and a driving method for the LED lighting device. The LED lighting device is provided with a first light-emitting unit and a second light-emitting unit differing a color temperature mutually, and a control circuit for executing a cyclic light/quench control of the first light-emitting unit and the second light-emitting unit, and for executing a light control of the first light-emitting unit and the second light-emitting unit by a PNM (Pulse Number Modulation) control in a fixed cycle so as to have a lighting period Ton for lighting/quenching the first light-emitting unit and the second light-emitting unit complementarily, and a quenching period Toff for quenching both the first light-emitting unit and the second light-emitting unit.
    Type: Application
    Filed: February 26, 2014
    Publication date: June 26, 2014
    Applicant: ROHM CO., LTD.
    Inventor: Jun MIZUNO
  • Publication number: 20140176030
    Abstract: A motor drive apparatus comprises: a position signal generation portion that generates a position signal corresponding to a rotor position of a brushless DC motor; and a logic portion that when starting the brushless DC motor, disposes a non-energizing period immediately after starting forced commutation at a phase switchover timing corresponding to a predetermined forced commutation frequency and performs energizing control of the brushless DC motor such that usual commutation is started at a phase switchover timing corresponding to the position signal that is generated during an inertial rotation of the rotor.
    Type: Application
    Filed: December 5, 2013
    Publication date: June 26, 2014
    Applicant: Rohm Co., Ltd.
    Inventors: Tetsuo Yamato, Noboru Takizawa
  • Publication number: 20140175880
    Abstract: An energy harvesting apparatus includes: a capacitor configured to store energy generated by an energy harvesting element; and a switch connected to the capacitor and configured to switch energy supply from the capacitor to a load based on a capacitor voltage with which the capacitor is charged. An energy harvesting system includes: energy harvesting elements; energy harvesting apparatuses which are provided to respectively correspond to the energy harvesting elements; and a load as an energy supply destination connected to the energy harvesting apparatuses.
    Type: Application
    Filed: October 21, 2013
    Publication date: June 26, 2014
    Applicant: ROHM CO., LTD.
    Inventors: Koichi MIYANAGA, Jun MAEDE
  • Publication number: 20140175989
    Abstract: A clothing illumination device is switchable between illumination with visible light only and illumination with visible light mixed with ultraviolet light. The clothing illumination device also has an LED light source and an IC tag reader. A clothing illumination system has a first and a second clothing illumination device which are each switchable between illumination with visible light only and illumination with visible light mixed with ultraviolet light, and which operate in a fashion coordinated with each other to perform the switching.
    Type: Application
    Filed: December 17, 2013
    Publication date: June 26, 2014
    Applicant: Rohm Co., Ltd.
    Inventors: Katsuhiro Arai, Masahide Tanaka
  • Publication number: 20140174936
    Abstract: Monovalent copper plating baths are used to metallize current tracks of the front side or emitter side of semiconductor wafers. Copper is selectively deposited on the current tracks by electrolytic plating or LIP. Additional metallization of the current tracks may be done using conventional metal plating baths. The metalized semiconductors may be used in the manufacture of photovoltaic devices.
    Type: Application
    Filed: April 19, 2012
    Publication date: June 26, 2014
    Applicant: Rohm and Haas Electronic Materials LLC
    Inventors: Gary Hamm, Jason A. Reese, Lingyun Wei
  • Publication number: 20140175648
    Abstract: A semiconductor device has pluralities of grid array terminals forming a grid array structure, e.g. a BGA structure, in which the output end of a built-in switch circuit is connected to multiple terminals of the grid array structure, thereby reducing the current that flows through each of the multiple terminals below a permissible level and minimizing the heat due to contact resistances of the multiple terminals in contact, with the IC socket of the semiconductor device. Each pair of nearest neighbors, of the multiple terminals is interposed by at least one further array terminal. The multiple terminals are all located at the outermost peripheral terminal positions of the grid array structure. Thus, the heat generated in the respective multiple terminals connected to the switch circuit is reduced, thereby minimizing the possibility of hazardous melting of the terminals.
    Type: Application
    Filed: February 26, 2014
    Publication date: June 26, 2014
    Applicant: ROHM CO., LTD.
    Inventor: Atsushi KITAGAWA
  • Publication number: 20140174937
    Abstract: A copper plating solution which contains compounds with the structure —X—S—Y— where X and Y are, independently of each other, atoms selected from a group consisting of hydrogen, carbon, sulfur, nitrogen, and oxygen, and X and Y can be the same only if they are carbon atoms and aliphatic semialdehydes. By using this copper electroplating solution it is possible to form good filled vias without worsening the appearance of the plating.
    Type: Application
    Filed: December 24, 2012
    Publication date: June 26, 2014
    Applicant: ROHM AND HAAS ELECTRONIC MATERIALS LLC
    Inventors: Matsuko Saito, Makoto Sakai, Shinjiro Hayashi
  • Publication number: 20140177165
    Abstract: A first calculation unit subtracts third digital data which indicates the minimum value of the duty ratio from first digital data which indicates the duty ratio of the PWM driving operation. A slope calculation unit generates slope data which is dependent on the temperature based upon second digital data which indicates the temperature. A second calculation unit multiplies the slope data by the output data of the first calculation unit. A third calculation unit sums the output data of the second calculation unit and the third digital data. A selector receives the output data of the third calculation unit and the third digital data, selects one data that corresponds to the sign of the output data of the first calculation unit, and outputs the data thus selected as a duty ratio control signal.
    Type: Application
    Filed: February 28, 2014
    Publication date: June 26, 2014
    Applicant: ROHM CO., LTD.
    Inventors: Hiroyuki ISHII, Tatsuro SHIMIZU
  • Publication number: 20140178572
    Abstract: The copper electroless baths are formaldehyde free and are environmentally friendly. The electroless copper baths include one or more sulfinate compounds as reducing agents to replace formaldehyde. The electroless baths are stable and deposit a bright copper on substrates.
    Type: Application
    Filed: February 17, 2013
    Publication date: June 26, 2014
    Applicant: ROHM AND HAAS ELECTRONIC MATERIALS LLC
    Inventors: Andy Lok-Fung CHOW, Dennis Kwok-Wai YEE, Crystal P. L. LI
  • Patent number: 8759450
    Abstract: The present invention relates to a plastics molding composition encompassing at least one poly(meth)acrylate A) and at least one impact-modified poly(meth)acrylate B), wherein the die swell of the plastics molding composition is at least 15%, measured at 5 MPa and 2200C to DIN 54811 (1984), and the melt flow rate of the poly(meth)acrylate A) is at least 10 ml per 10 minutes, measured to ISO 1133 at 2300C with a load of 3.8 kg. The present invention also describes moldings which encompass the plastics molding composition described above, and processes for the production of the said moldings.
    Type: Grant
    Filed: July 7, 2009
    Date of Patent: June 24, 2014
    Assignee: Evonik Röhm GmbH
    Inventors: Werner Hoess, Klaus Schultes, Guomin Liu
  • Patent number: 8759416
    Abstract: The present invention relates to a process comprising adding a sufficient amount of a halamine with a latex binder to achieve microbial prophylaxis, wherein the halamine is characterized by the following formula: wherein X1 is H, Br, or Cl; X2 is Br or Cl; and R1 is H or a C1-30 alkyl group or mixtures thereof. The present invention also relates to a composition comprising the halamine and a latex binder. The present invention provides a quick kill shelf stable preservative for latex binders and for formulations that use such binders.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: June 24, 2014
    Assignees: Dow Global Technologies, LLC, Rohm and Haas Company
    Inventors: Sudhakar Balijepalli, Douglas Hawkins, Kathleen Manna, Ian Tomlinson
  • Patent number: 8758515
    Abstract: A delivery device comprises an inlet port and an outlet port. The delivery device comprises an inlet chamber and an outlet chamber, with the outlet chamber being opposedly disposed to the inlet chamber and in fluid communication with the inlet chamber via a conical section. The outlet chamber comprises a labyrinth that is operative to prevent solid particles of a solid precursor compound contained in the delivery device from leaving the delivery device while at the same time permitting vapors of the solid precursor compound to leave the delivery device via the outlet port.
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: June 24, 2014
    Assignee: Rohm and Haas Electronic Materials LLC
    Inventors: Egbert Woelk, Ronald L. DiCarlo
  • Patent number: 8759828
    Abstract: A ZnO-based semiconductor device includes an n type ZnO-based semiconductor layer, an aluminum oxide film formed on the n type ZnO-based semiconductor layer, and a palladium layer formed on the aluminum oxide film. With this configuration, the n type ZnO-based semiconductor layer and the palladium layer form a Schottky barrier structure.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: June 24, 2014
    Assignees: Rohm Co., Ltd., Tohoku University
    Inventors: Shunsuke Akasaka, Masashi Kawasaki, Atsushi Tsukazaki