Patents by Inventor ULVAC, INC.

ULVAC, INC. 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).

  • Publication number: 20130220799
    Abstract: A method for forming a dielectric thin film that forms a PZT thin film having a (100)/(001) orientation. After a seed layer is formed by adhering PbO gas to a surface of a substrate, a voltage is applied to a target of lead zirconate titanate (PZT) and perform sputtering, while the substrate is heated inside of an evacuated vacuum chamber. Then, a PZT thin film is formed on the surface of the substrate. Because Pb and O are supplied from the seed layer, a PZT film having a (001)/(100) orientation can be formed without lack of Pb.
    Type: Application
    Filed: April 5, 2013
    Publication date: August 29, 2013
    Applicant: ULVAC, Inc.
    Inventor: ULVAC, Inc.
  • Publication number: 20130186752
    Abstract: To provide a target device that can easily be reused in which the amount of gas discharge is small. The present invention is a target device including a backing plate and a target plate that is fixed to the backing plate with a metal brazing material, in which a protective film made of a TiN thin film in which a proportion of (111) plane is at a maximum is formed on an exposed portion of the backing plate. The discharge amount of gas is small, and the brazing material that adheres when fixing the target plate can be easily peeled off.
    Type: Application
    Filed: December 11, 2012
    Publication date: July 25, 2013
    Applicant: ULVAC, INC.
    Inventor: ULVAC, Inc.
  • Publication number: 20130186340
    Abstract: A stage holds the substrate inside the vacuum chamber, gas supply device alternately supplies gases to the substrate, and exhaust device exhausts gases inside the vacuum chamber. The gas supply device has at least one ejection nozzle, disposed on one side of the stage, for ejecting the gases from one side of the substrate to the other side thereof and also along an upper surface of the substrate. In this case, that surface side of the substrate held by the stage on which the thin film is formed is defined as the upper side. The exhaust device includes: an exhaust port disposed to open through a lower wall of the vacuum chamber on the other side of the stage; an exhaust chamber disposed under the vacuum chamber in communication with the exhaust port; and a vacuum pump connected to the exhaust chamber to evacuate the exhaust chamber.
    Type: Application
    Filed: January 7, 2013
    Publication date: July 25, 2013
    Applicant: ULVAC, INC.
    Inventor: ULVAC, INC.
  • Publication number: 20130178059
    Abstract: A manufacturing method of a device including: a first process in which a barrier film is formed on a substrate with a concave portion provided on one surface thereof so as to cover an inner wall surface of the concave portion; a second process in which a conductive film is formed so as to cover the barrier film; and a third process in which the conductive film is melted by a reflow method, wherein the method includes a process ? between the second process and the third process, in which the substrate with the barrier film and the conductive film laminated thereon in this order is exposed to an atmosphere under a pressure A for a time period B, and wherein in the process ?, control is carried out such that a product of the pressure A and the time period B is not greater than 6×10?4 [Pa·s].
    Type: Application
    Filed: January 9, 2013
    Publication date: July 11, 2013
    Applicant: ULVAC, INC.
    Inventor: ULVAC, INC.
  • Publication number: 20130174783
    Abstract: A film-forming apparatus capable of discharging a feedstock gas and a reactive gas to an inner side of the vacuum chamber by more effectively cooling the gases without mixing them in comparison with the conventional art. A discharge plate having a first face exposed inside the vacuum chamber is provided with a plurality of feedstock gas introduction holes and a plurality of reactive gas introduction holes penetrating the discharge plate. A plurality of grooves having the feedstock gas introduction holes located on the bottom face are formed in the second face opposite to the first face of the discharge plate, a top plate that covers the groove is arranged over the second face, and the feedstock gas through-hole formed in the top plate and the feedstock gas introduction hole are connected to each other with the first auxiliary pipe.
    Type: Application
    Filed: January 10, 2013
    Publication date: July 11, 2013
    Applicant: ULVAC, INC.
    Inventor: ULVAC, INC.
  • Publication number: 20130098757
    Abstract: An adhesion-preventing member from which a thin film of an adhered material is not peeled off during a film deposition process and a sputter deposition apparatus having the adhesion-preventing member. Adhesion-preventing members 251 to 254 and 35 are made of Al2O3; and an arithmetically average roughness of that adhering surface to which the sputtered particles are to be attached is between at least 4 ?m and at most 10 ?m to make the adhered materials difficult to be peeled off. The sputter deposition apparatus includes the adhesion-preventing members 251 to 254 and 35, arranged at positions such as surrounding outer peripheries of sputtering surfaces 231 to 234 of targets 211 to 214, or surrounding an outer periphery of a film-forming face of a substrate 31.
    Type: Application
    Filed: December 17, 2012
    Publication date: April 25, 2013
    Applicant: ULVAC, INC.
    Inventor: ULVAC, INC.
  • Publication number: 20130092533
    Abstract: A sputter deposition apparatus can sputter a wider surface area of a sputtering surface of a target in comparison to an area that could be sputtered by a conventional apparatus. An adhesion-preventing member surrounding the outer periphery of a sputtering surface of a target made of a metal material is formed by insulating ceramic. The target is sputtered while moving a magnet device between a position where the entire outer periphery of an outer peripheral magnet is on the inside of the outer periphery of the sputtering surface and another position where a part of the outer periphery of the outer peripheral magnet protrudes out to the outside of the outer periphery of the sputtering surface.
    Type: Application
    Filed: November 29, 2012
    Publication date: April 18, 2013
    Applicant: ULVAC, INC.
    Inventor: ULVAC, INC.
  • Publication number: 20130068614
    Abstract: A sputter deposition apparatus can sputter the entire sputtering surface of a target, and thereby increase the usage efficiency of the target and prevent arcing. An adhesion-preventing member, which surrounds the outer periphery of a sputtering surface of an electrically-conductive target 211, is formed by insulating ceramic. The target is sputtered in a reaction gas atmosphere while moving a magnet device between a position where the entire outer periphery of an outer peripheral magnet is on the inside of the outer periphery of the sputtering surface and a position where a part of the outer periphery of the outer peripheral magnet protrudes to the outside of the outer periphery of the sputtering surface. Since the entire sputtering surface of the target is sputtered, an insulating compound does not accumulate on the target and arcing does not occur.
    Type: Application
    Filed: November 29, 2012
    Publication date: March 21, 2013
    Applicant: ULVAC, INC.
    Inventor: ULVAC, INC.