Patents by Inventor Nalin Rupesinghe

Nalin Rupesinghe 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: 20230313358
    Abstract: In one aspect, a highly scalable diffusion-couple apparatus includes a transfer chamber configured to load a wafer into a process chamber. The process chamber is configured to receive the wafer substrate from the transfer chamber. The process chamber comprises a chamber for growth of a diffusion material on the wafer. A heatable bottom substrate disk includes a first heating mechanism. The heatable bottom substrate disk is fixed and heatable to a specified temperature. The wafer is placed on the heatable bottom substrate disk. A heatable top substrate disk comprising a second heating mechanism. The heatable top substrate disk is configured to move up and down along an x axis and an x prime axis to apply a mechanical pressure to the wafer on the heatable bottom substrate disk. While the heatable top substrate disk applies the mechanical pressure a chamber pressure is maintained at a specified low value.
    Type: Application
    Filed: June 9, 2023
    Publication date: October 5, 2023
    Inventors: Kaustav BANERJEE, Ravi IYENGAR, Satish SUNDAR, Nalin RUPESINGHE
  • Publication number: 20230105855
    Abstract: In one aspect, a highly scalable diffusion-couple apparatus includes a transfer chamber configured to load a wafer into a process chamber. The process chamber is configured to receive the wafer substrate from the transfer chamber. The process chamber comprises a chamber for growth of a diffusion material on the wafer. A heatable bottom substrate disk includes a first heating mechanism. The heatable bottom substrate disk is fixed and heatable to a specified temperature. The wafer is placed on the heatable bottom substrate disk. A heatable top substrate disk comprising a second heating mechanism. The heatable top substrate disk is configured to move up and down along an x axis and an x prime axis to apply a mechanical pressure to the wafer on the heatable bottom substrate disk. While the heatable top substrate disk applies the mechanical pressure a chamber pressure is maintained at a specified low value.
    Type: Application
    Filed: July 5, 2022
    Publication date: April 6, 2023
    Inventors: KAUSTAV BANERJEE, RAVI IYENGAR, SATISH SUNDAR, NALIN RUPESINGHE
  • Publication number: 20230008834
    Abstract: In one aspect, a highly scalable diffusion-couple apparatus includes a transfer chamber configured to load a wafer into a process chamber. The process chamber is configured to receive the wafer substrate from the transfer chamber. The process chamber comprises a chamber for growth of a diffusion material on the wafer. A heatable bottom substrate disk includes a first heating mechanism. The heatable bottom substrate disk is fixed and heatable to a specified temperature. The wafer is placed on the heatable bottom substrate disk. A heatable top substrate disk comprising a second heating mechanism. The heatable top substrate disk is configured to move up and down along an x axis and an x prime axis to apply a mechanical pressure to the wafer on the heatable bottom substrate disk. While the heatable top substrate disk applies the mechanical pressure a chamber pressure is maintained at a specified low value.
    Type: Application
    Filed: July 12, 2022
    Publication date: January 12, 2023
    Inventors: KAUSTAV BANERJEE, RAVI IYENGAR, NALIN RUPESINGHE, SATISH SUNDAR
  • Patent number: 9822451
    Abstract: A device for manufacturing nanostructures consisting of carbon, such as monolayers, multilayer sheet structures, tubes, or fibers includes a gas inlet element having a housing cavity enclosed by housing walls, into which a gas feed line opens, through which a gaseous, in particular carbonaceous starting material can be fed into the housing cavity, having a plasma generator, which has components arranged at least partially in the housing cavity, which has at least one plasma electrode to which electrical voltage can be applied, to apply energy to the gaseous starting material by igniting a plasma and thus converting the gaseous starting material into a gaseous intermediate product, and having a gas outlet surface having a plurality of gas outlet openings, through which the gaseous intermediate product can exit out of the housing cavity. A gas heating unit is provided for assisting the conversion, which is arranged downstream of the components.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: November 21, 2017
    Assignee: AIXTRON SE
    Inventors: Ian Blackburn, Brian Lu, Kenneth Teo, Nalin Rupesinghe
  • Publication number: 20150140234
    Abstract: The invention relates to a device for manufacturing nanostructures consisting of carbon, such as monolayers, multilayer sheet structures, tubes, or fibers having a gas inlet element (2) having a housing cavity (5) enclosed by housing walls (3, 3?, 3?), into which a gas feed line (6) opens, through which a gaseous, in particular carbonaceous starting material can be fed into the housing cavity (5), having a plasma generator, which has components (8, 9, 10) arranged at least partially in the housing cavity (5), which has at least one plasma electrode (9) to which electrical voltage can be applied, to apply energy to the gaseous starting material by igniting a plasma and thus convert it into a gaseous intermediate product, and having a gas outlet surface (4) having a plurality of gas outlet openings (7), through which the gaseous intermediate product can exit out of the housing cavity (5). A gas heating unit (11) is provided for assisting the conversion, which is arranged downstream of the components (8, 9, 10).
    Type: Application
    Filed: November 19, 2014
    Publication date: May 21, 2015
    Inventors: Ian Blackburn, Brian Lu, Kenneth Teo, Nalin Rupesinghe
  • Publication number: 20140186527
    Abstract: The invention relates first to a device for processing a strip-type substrate (1), in particular by coating, in a processing chamber (2), using a processing roller (3) mounted to rotate about an axis of rotation (18) in the processing chamber (2), such that the substrate (1), which is unwound from a first coil (6) with which it is in contact in a helical pattern is processed continuously, wherein the processed, in particular coated, substrate (1) is wound onto a second coil (7), wherein a gas inlet/outlet device (8, 9, 10) is provided for generating a gas stream (11, 12) directed essentially in parallel to the axis of rotation (18). In addition, the invention relates to a method for coating a strip-type substrate (1) in a device.
    Type: Application
    Filed: November 26, 2013
    Publication date: July 3, 2014
    Applicant: AIXTRON SE
    Inventors: Kenneth B.K. Teo, Nalin Rupesinghe
  • Publication number: 20100216023
    Abstract: An energy storage device structure comprises a first electrode layer, an electrolyte layer and a second electrode layer. At least one of the electrode layers comprise a metallic foil base layer and a layer of carbon nanotubes grown on the base layer, the carbon nanotube layer being arranged to face the electrolyte layer. The structure may be made in such a way that its width and length are much larger than its thickness, so that it can rolled up or folded and then hermetically sealed to form an energy storage unit. The layer of carbon nanotubes is grown on the metallic foil base layer by a chemical vapor deposition process at a temperature no higher than 550° C. The carbon nanotubes in the carbon nanotube layer are at least partially aligned in a direction that is perpendicular to the surface of the metallic base layer.
    Type: Application
    Filed: September 29, 2009
    Publication date: August 26, 2010
    Inventors: Di Wei, Alan Colli, Markku Antti Kyosti Rouvala, Husnu Emrah Unalan, Pritesh Hiralal, Gahan Amaratunga, Nalin Rupesinghe
  • Publication number: 20070169702
    Abstract: Nano-technology is an emerging and intensely competitive field. There are a number of companies that work mainly in the development of various Nano-technology areas. One area that has not received too much emphasis is that of specialized equipment for Nano-technology. Nanoinstruments is a company working to rectify this deficiency in the field of nano-material deposition, especially in Carbon Nanotube and Nanowire growth. A number of innovations disclosed include the use of a low thermal mass heating unit that allows fast changes in temperature of the growth sample while providing sufficient thermal stability, uniformity and electrical isolation, a novel shower head design for providing uniform gas flow while eliminating thermal and plasma decomposition of feed stock at the nozzle, a pulsed voltage waveform that eliminates charging of substrate on which the growth has to take place, and the use of a conductive grid over insulating substrates to achieve uniform plasma over the growth surface.
    Type: Application
    Filed: January 9, 2006
    Publication date: July 26, 2007
    Inventors: Kenneth Khin Teo, Nalin Rupesinghe