Patents by Inventor Hariklia Deligianni

Hariklia Deligianni 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).

  • RINSING AND DRYING FOR ELECTROCHEMICAL PROCESSING
    Publication number: 20160076165
    Abstract: An electroplating/etch apparatus including a fluid jet and a dryer present over the tank containing the electrolyte for the electroplating/etch process. The fluid jet and the dryer remove excess liquids, such as electrolyte, from the component being plated or etched, e.g., working electrode. The working electrode is present on a holder that traverses from a first position within the tank during a plating or etch operation to a second position that is outside the containing the plating electrolyte. The fluid jet rinses the working electrode when the holder is in the second position, and the forced air dryer blows any remaining fluid from the fluid jet and the electrolyte from the working electrode into the tank.
    Type: Application
    Filed: November 21, 2015
    Publication date: March 17, 2016
    Inventors: Charles L. Arvin, Raschid J. Bezama, Hariklia Deligianni
  • Power source encapsulation
    Patent number: 9269932
    Abstract: A method comprising the steps of encapsulating a power source including a set of power terminals in a cover and sealing the power source including the set of power terminals within the cover and inserting a set of conductive contacts through the cover to contact the set of power terminals and provide conductive access to the set of power terminals of the power source from outside the cover without allowing exposure of the power source to an environment outside the cover.
    Type: Grant
    Filed: August 12, 2013
    Date of Patent: February 23, 2016
    Assignee: International Business Machines Corporation
    Inventors: Hariklia Deligianni, Dimitri Kanevsky, Nina Sainath, Tara N. Sainath
  • Power source encapsulation
    Patent number: 9263714
    Abstract: A system includes a power source having a set of power terminals, a cover encapsulating the power source including the set of power terminals and sealing the power source including the set of power terminals within the cover, and a set of conductive contacts passing through the cover, contacting the set of power terminals, and providing conductive access to the set of power terminals of the power source from outside the cover without allowing exposure of the power source to an environment outside the cover.
    Type: Grant
    Filed: May 28, 2013
    Date of Patent: February 16, 2016
    Assignee: International Business Machines Corporation
    Inventors: Hariklia Deligianni, Dimitri Kanevsky, Nina Sainath, Tara N. Sainath
  • Zinc thin films plating chemistry and methods
    Patent number: 9234291
    Abstract: Techniques for electrodepositing zinc (Zn)-containing films are provided. In one aspect, a method of preparing a Zn electroplating solution is provided. The method includes the following steps. The solution is formed from a mixture of at least one zinc salt, a sulfonic acid and a solvent. The sulfonic acid is quenched with a base. A pH of the solution is adjusted to be either less than about 3.5 or greater than about 8.0. The pH of the solution can be adjusted by adding additional sulfonic acid to the solution to adjust the pH of the solution to be less than about 3.5 or by adding a second base to the solution to adjust the pH of the solution to be greater than about 8.0. A Zn electroplating solution and an electroplating method are also provided.
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: January 12, 2016
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Shafaat Ahmed, Hariklia Deligianni
  • Rinsing and drying for electrochemical processing
    Patent number: 9222194
    Abstract: An electroplating/etch apparatus including a fluid jet and a dryer present over the tank containing the electrolyte for the electroplating/etch process. The fluid jet and the dryer remove excess liquids, such as electrolyte, from the component being plated or etched, e.g., working electrode. The working electrode is present on a holder that traverses from a first position within the tank during a plating or etch operation to a second position that is outside the containing the plating electrolyte. The fluid jet rinses the working electrode when the holder is in the second position, and the forced air dryer blows any remaining fluid from the fluid jet and the electrolyte from the working electrode into the tank.
    Type: Grant
    Filed: August 19, 2010
    Date of Patent: December 29, 2015
    Assignee: International Business Machines Corporation
    Inventors: Charles L. Arvin, Raschid J. Bezama, Hariklia Deligianni
  • Electrodeposition of thin-film cells containing non-toxic elements
    Patent number: 9219186
    Abstract: A structure and method of making a thin-film solar cell is provided. A thin-film solar cell includes a substrate, absorber layer and a buffer layer. The absorber layer is deposited by a single-step bulk electrochemical process, or a multi-layer electrochemical process. The buffer layer is deposited by an electrochemical deposition process such as a multi-layer deposition or an atomic layer deposition. The absorber and buffer layers are non-toxic materials which can include sulfur incorporated during the deposition process or incorporated after deposition by an anneal step.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: December 22, 2015
    Assignee: International Business Machines Corporation
    Inventors: Hariklia Deligianni, Lian Guo, Raman Vaidyanathan
  • Electrodeposition of thin-film cells containing non-toxic elements
    Patent number: 9209343
    Abstract: A structure and method of making a thin-film solar cell is provided. A thin-film solar cell includes a substrate, absorber layer and a buffer layer. The absorber layer is deposited by a single-step bulk electrochemical process, or a multi-layer electrochemical process. The buffer layer is deposited by an electrochemical deposition process such as a multi-layer deposition or an atomic layer deposition. The absorber and buffer layers are non-toxic materials which can include sulfur incorporated during the deposition process or incorporated after deposition by an anneal step.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: December 8, 2015
    Assignee: International Business Machines Corporation
    Inventors: Hariklia Deligianni, Lian Guo, Raman Vaidyanathan
  • Method of Fabricating a Flexible Photovoltaic Film Cell With an Iron Diffusion Barrier Layer
    Publication number: 20150340524
    Abstract: A method of fabricating a flexible photovoltaic film cell with an iron diffusion barrier layer. The method includes: providing a foil substrate including iron; forming an iron diffusion barrier layer on the foil substrate, where the iron diffusion barrier layer prevents the iron from diffusing; forming an electrode layer on the iron diffusion barrier layer; and forming at least one light absorber layer on the electrode layer. A flexible photovoltaic film cell is also provided, which cell includes: a foil substrate including iron; an iron diffusion barrier layer formed on the foil substrate to prevent the iron from diffusing; an electrode layer formed on the iron diffusion barrier layer; and at least one light absorber layer formed on the electrode layer.
    Type: Application
    Filed: August 3, 2015
    Publication date: November 26, 2015
    Inventors: Hariklia Deligianni, Lian Guo, Marinus Johannes Petrus Hopstaken, Maurice Mason, Lubomyr T. Romankiw
  • ELECTRODEPOSITION OF THIN-FILM CELLS CONTAINING NON-TOXIC ELEMENTS
    Publication number: 20150243831
    Abstract: A structure and method of making a thin-film solar cell is provided. A thin-film solar cell includes a substrate, absorber layer and a buffer layer. The absorber layer is deposited by a single-step bulk electrochemical process, or a multi-layer electrochemical process. The buffer layer is deposited by an electrochemical deposition process such as a multi-layer deposition or an atomic layer deposition. The absorber and buffer layers are non-toxic materials which can include sulfur incorporated during the deposition process or incorporated after deposition by an anneal step.
    Type: Application
    Filed: April 29, 2015
    Publication date: August 27, 2015
    Inventors: Hariklia Deligianni, Lian Guo, Raman Vaidyanathan
  • ELECTRODEPOSITION OF THIN-FILM CELLS CONTAINING NON-TOXIC ELEMENTS
    Publication number: 20150236189
    Abstract: A structure and method of making a thin-film solar cell is provided. A thin-film solar cell includes a substrate, absorber layer and a buffer layer. The absorber layer is deposited by a single-step bulk electrochemical process, or a multi-layer electrochemical process. The buffer layer is deposited by an electrochemical deposition process such as a multi-layer deposition or an atomic layer deposition. The absorber and buffer layers are non-toxic materials which can include sulfur incorporated during the deposition process or incorporated after deposition by an anneal step.
    Type: Application
    Filed: April 29, 2015
    Publication date: August 20, 2015
    Inventors: Hariklia Deligianni, Lian Guo, Raman Vaidyanathan
  • ELECTRODEPOSITION OF THIN-FILM CELLS CONTAINING NON-TOXIC ELEMENTS
    Publication number: 20150233009
    Abstract: A structure and method of making a thin-film solar cell is provided. A thin-film solar cell includes a substrate, absorber layer and a buffer layer. The absorber layer is deposited by a single-step bulk electrochemical process, or a multi-layer electrochemical process. The buffer layer is deposited by an electrochemical deposition process such as a multi-layer deposition or an atomic layer deposition. The absorber and buffer layers are non-toxic materials which can include sulfur incorporated during the deposition process or incorporated after deposition by an anneal step.
    Type: Application
    Filed: April 29, 2015
    Publication date: August 20, 2015
    Inventors: Hariklia Deligianni, Lian Guo, Raman Vaidyanathan
  • ELECTRODEPOSITION OF THIN-FILM CELLS CONTAINING NON-TOXIC ELEMENTS
    Publication number: 20150236188
    Abstract: A structure and method of making a thin-film solar cell is provided. A thin-film solar cell includes a substrate, absorber layer and a buffer layer. The absorber layer is deposited by a single-step bulk electrochemical process, or a multi-layer electrochemical process. The buffer layer is deposited by an electrochemical deposition process such as a multi-layer deposition or an atomic layer deposition. The absorber and buffer layers are non-toxic materials which can include sulfur incorporated during the deposition process or incorporated after deposition by an anneal step.
    Type: Application
    Filed: April 29, 2015
    Publication date: August 20, 2015
    Inventors: Hariklia Deligianni, Lian Guo, Raman Vaidyanathan
  • Method of fabricating a flexible photovoltaic film cell with an iron diffusion barrier layer
    Patent number: 9105779
    Abstract: A method of fabricating a flexible photovoltaic film cell with an iron diffusion barrier layer. The method includes: providing a foil substrate including iron; forming an iron diffusion barrier layer on the foil substrate, where the iron diffusion barrier layer prevents the iron from diffusing; forming an electrode layer on the iron diffusion barrier layer; and forming at least one light absorber layer on the electrode layer. A flexible photovoltaic film cell is also provided, which cell includes: a foil substrate including iron; an iron diffusion barrier layer formed on the foil substrate to prevent the iron from diffusing; an electrode layer formed on the iron diffusion barrier layer; and at least one light absorber layer formed on the electrode layer.
    Type: Grant
    Filed: September 26, 2011
    Date of Patent: August 11, 2015
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Hariklia Deligianni, Lian Guo, Marinus Johannes Petrus Hopstaken, Maurice Mason, Lubomyr T Romankiw
  • Electrodeposition of thin-film cells containing non-toxic elements
    Patent number: 9085829
    Abstract: A structure and method of making a thin-film solar cell. A thin-film solar cell includes a substrate, absorber layer and a buffer layer. The absorber layer is deposited by a single-step bulk electrochemical process, or a multi-layer electrochemical process. The buffer layer is deposited by an electrochemical deposition process such as a multi-layer deposition or an atomic layer deposition. The absorber and buffer layers are non-toxic materials which can include sulfur incorporated during the deposition process or incorporated after deposition by an anneal step.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: July 21, 2015
    Assignee: International Business Machines Corporation
    Inventors: Hariklia Deligianni, Lian Guo, Raman Vaidyanathan
  • Method and apparatus for controlling and monitoring the potential
    Patent number: 9062388
    Abstract: An electroplating apparatus including a reference electrode to control the potential during an electro-deposition process. The electroplating apparatus may include a bath containing a plating electrolyte and an anode present in a first portion of the bath containing the plating electrolyte. A cathode is present in a second portion of the bath containing the plating electrolyte. A reference electrode is present at a perimeter of the cathode. The electroplating apparatus also includes a control system to bias the cathode and the anode to provide a potential. A measuring system is provided in electrical communication with the reference electrode to measure the potential of the cathode. Methods of using the above described electroplating apparatus are also provided. Structures and method for electroless deposition are also provided.
    Type: Grant
    Filed: August 19, 2010
    Date of Patent: June 23, 2015
    Assignee: International Business Machines Corporation
    Inventors: Charles L. Arvin, Harry Cox, Hariklia Deligianni, George J. Scott
  • Structure and method of fabricating a CZTS photovoltaic device by electrodeposition
    Patent number: 9041141
    Abstract: Techniques for using electrodeposition to form absorber layers in diodes (e.g., solar cells) are provided. In one aspect, a method for fabricating a diode is provided. The method includes the following steps. A substrate is provided. A backside electrode is formed on the substrate. One or more layers are electrodeposited on the backside electrode, wherein at least one of the layers comprises copper, at least one of the layers comprises zinc and at least one of the layers comprises tin. The layers are annealed in an environment containing a sulfur source to form a p-type CZTS absorber layer on the backside electrode. An n-type semiconductor layer is formed on the CZTS absorber layer. A transparent conductive layer is formed on the n-type semiconductor layer. A diode is also provided.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: May 26, 2015
    Assignee: International Business Machines Corporation
    Inventors: Shafaat Ahmed, Hariklia Deligianni, Lubomyr T. Romankiw, Kejia Wang
  • Pressure Transfer Process for Thin Film Solar Cell Fabrication
    Publication number: 20150079723
    Abstract: In one aspect, a method for fabricating a thin film solar cell includes the following steps. A first absorber material is deposited as a layer A on a substrate while applying pressure to the substrate/layer A. A second absorber material is deposited as a layer B on layer A while applying pressure to the substrate/layer B. A third absorber material is deposited as a layer C on layer B while applying pressure to the substrate/layer C. A fourth absorber material is deposited as a layer D on layer C while applying pressure to the substrate/layer D. The first absorber material comprises copper, the second absorber material comprises indium, the third absorber material comprises gallium, and the fourth absorber material comprises one or more of sulfur and selenium, and wherein by way of performing the steps of claim 1 a chalcogenide absorber layer is formed on the substrate.
    Type: Application
    Filed: September 18, 2013
    Publication date: March 19, 2015
    Applicant: International Business Machines Corporation
    Inventors: Shafaat Ahmed, Hariklia Deligianni, Qiang Huang, Lubomyr T. Romankiw, Raman Vaidyanathan
  • Gallium electrodeposition processes and chemistries
    Patent number: 8940149
    Abstract: Solutions and processes for electrodepositing gallium or gallium alloys includes a plating bath free of complexing agents including a gallium salt, an indium salt, a combination thereof, and a combination of any of the preceding salts with copper, an acid, and a solvent, wherein the pH of the solution is in a range selected from the group consisting of from about zero to about 2.6 and greater than about 12.6 to about 14. An optional metalloid may be included in the solution.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: January 27, 2015
    Assignee: International Business Machines Corporation
    Inventors: Shafaat Ahmed, Hariklia Deligianni
  • Fabricating a contact rhodium structure by electroplating and electroplating composition
    Patent number: 8941240
    Abstract: A contact rhodium structure is fabricated by a process that comprises obtaining a substrate having a dielectric layer thereon, wherein the dielectric layer has cavities therein into which the contact rhodium is to be deposited; depositing a seed layer in the cavities and on the dielectric layer; and depositing the rhodium by electroplating from a bath comprising a rhodium salt; an acid and a stress reducer; and then optionally annealing the structure.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: January 27, 2015
    Assignee: International Business Machines Corporation
    Inventors: Hariklia Deligianni, Xiaoyan Shao
  • Working electrode design for electrochemical processing of electronic components
    Patent number: 8926820
    Abstract: An electroplating apparatus including a plating tank for containing a plating electrolyte. A counter electrode, e.g., anode, is present in a first portion of the plating tank. A cathode system is present in a second portion of the plating tank. The cathode system includes a working electrode and a thief electrode. The thief electrode is present between the working electrode and the counter electrode. The thief electrode includes an exterior face that is in contact with the plating electrolyte that is offset from the plating surface of the working electrode. In one embodiment, the thief electrode overlaps a portion of the working electrode about the perimeter of the working electrode. In one embodiment, a method is provided of using the aforementioned electroplating apparatus that provides increased uniformity in the plating thickness.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: January 6, 2015
    Assignee: International Business Machines Corporation
    Inventors: Charles L. Arvin, Raschid J. Bezama, Glen N. Biggs, Hariklia Deligianni, Tracy A. Tong