Patents by Inventor Rabindra Das

Rabindra Das 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: 20120069288
    Abstract: A substrate and method for making same for use in electronic packages having a core layer of copper-invar-copper (CIC) with a layer of polytetrafluoroethylene (PTFE) placed upon both sides of the CIC. A layer of etched copper foil is placed on the outer surface of each PTFE layer. A layer of liquid crystal polymer (LCP) is placed on both layers of etched copper foil. An external layer of etched copper foil is placed on the external surface of the LCP layers.
    Type: Application
    Filed: September 17, 2010
    Publication date: March 22, 2012
    Applicant: ENDICOTT INTERCONNECT TECHNOLOGIES, INC.
    Inventors: Rabindra Das, Michael Rowlands
  • Publication number: 20080087459
    Abstract: A circuitized substrate which utilizes at least one internal (embedded) resistor as part thereof, the resistor comprised of a material including resin and a quantity of powders of nano-particle and/or micro-particle sizes. The resistor serves to decrease the capacitance in the formed circuit while only slightly increasing the high frequency resistance, thereby improving circuit performance through the substantial elimination of some discontinuities known to exist in structures like these. An electrical assembly (substrate and at least one electrical component) is also provided.
    Type: Application
    Filed: June 4, 2007
    Publication date: April 17, 2008
    Applicant: Endicott Interconnect Technologies, Inc.
    Inventors: Rabindra Das, Michael Rowlands
  • Publication number: 20070221404
    Abstract: A circuitized substrate which includes a conductive paste for providing electrical connections. The paste, in one embodiment, includes a metallic component including nano-particles and may include additional elements such as solder or other metal micro-particles, as well as a conducting polymer and organic. The particles of the paste composition sinter and, depending on what additional elements are added, melt as a result of lamination to thereby form effective contiguous circuit paths through the paste. A method of making such a substrate is also provided, as is an electrical assembly utilizing the substrate and including an electronic component such as a semiconductor chip coupled thereto.
    Type: Application
    Filed: May 23, 2007
    Publication date: September 27, 2007
    Applicant: Endicott Interconnect Technologies, Inc.
    Inventors: Rabindra Das, Kostas Papathomas, Voya Markovich
  • Publication number: 20070177331
    Abstract: A capacitor material including a thermosetting resin (e.g., epoxy resin), a high molecular mass flexibilizer (e.g., phenoxy resin), and a quantity of nano-particles of a ferroelectric ceramic material (e.g., barium titanate), the capacitor material not including continuous or semi-continuous fibers (e.g., fiberglass) as part thereof. The material is adapted for being positioned in layer form on a first conductor member and heated to a predetermined temperature whereupon the material will not possess any substantial flaking characteristics. A second conductor member may then be positioned on the material to form a capacitor member, which then may be incorporated within a substrate to form a capacitive substrate. Electrical components may be positioned on the substrate and capacitively coupled to the internal capacitor.
    Type: Application
    Filed: April 4, 2007
    Publication date: August 2, 2007
    Applicant: Endicott Interconnect Technologies, Inc.
    Inventors: Rabindra Das, John Lauffer, Voya Markovich, Kostas Papathomas
  • Publication number: 20070007033
    Abstract: A circuitized substrate which includes a conductive paste for providing electrical connections. The paste, in one embodiment, includes a binder component and at least one metallic component including microparticles. In another embodiment, the paste includes the binder and a plurality of nano-wires. Selected ones of the microparticles or nano-wires include a layer of solder thereon. A method of making such a substrate is also provided, as are an electrical assembly and information handling system adapter for having such a substrate as part thereof.
    Type: Application
    Filed: October 6, 2005
    Publication date: January 11, 2007
    Applicant: Endicott Interconnect Technologies, Inc.
    Inventors: Rabindra Das, John Lauffer, Roy Magnuson, Voya Markovich
  • Publication number: 20070010065
    Abstract: A method of forming a capacitive substrate in which at least one capacitive dielectric layer of material is screen or ink jet printed onto a conductor and the substrate is thereafter processed further, including the addition of thru-holes to couple selected elements within the substrate to form at least two capacitors as internal elements of the substrate. The capacitive substrate may be incorporated within a larger circuitized substrate, e.g., to form an electrical assembly. A method of making an information handling system including such substrates is also provided.
    Type: Application
    Filed: February 13, 2006
    Publication date: January 11, 2007
    Applicant: Endicott Interconnect Technologies, Inc.
    Inventors: Rabindra Das, John Lauffer, How Lin, Voya Markovich
  • Publication number: 20070010064
    Abstract: A method of forming a capacitive substrate in which at least one capacitive dielectric layer of material is screen or ink jet printed onto a conductor and the substrate is thereafter processed further, including the addition of thru-holes to couple selected elements within the substrate to form at least two capacitors as internal elements of the substrate. Photoimageable material is used to facilitate positioning of the capacitive dielectric being printed. The capacitive substrate may be incorporated within a larger circuitized substrate, e.g., to form an electrical assembly. A method of making an information handling system including such substrates is also provided.
    Type: Application
    Filed: February 13, 2006
    Publication date: January 11, 2007
    Applicant: Endicott Interconnect Technologies, Inc.
    Inventors: Rabindra Das, John Lauffer, How Lin, Voya Markovich
  • Publication number: 20060151202
    Abstract: A material for use as part of an internal resistor within a circuitized substrate includes a polymer resin and a quantity of nano-powders including a mixture of at least one metal component and at least one ceramic component. The ceramic component may be a ferroelectric ceramic and/or a high surface area ceramic and/or a transparent oxide and/or a dope manganite. Alternatively, the material will include the polymer resin and nano-powders, with the nano-powders comprising at least one metal coated ceramic and/or at least one oxide coated metal component. A circuitized substrate adapted for using such a material and resistor therein and a method of making such a substrate are also provided. An electrical assembly (substrate and at least one electrical component) and an information handling system (e.g., personal computer) are also provided.
    Type: Application
    Filed: July 5, 2005
    Publication date: July 13, 2006
    Applicant: Endicott Interconnect Technologies, Inc.
    Inventors: Rabindra Das, John Lauffer, Voya Markovich
  • Publication number: 20060151863
    Abstract: A material for use as part of an internal capacitor within a circuitized substrate includes a polymer (e.g., a cycloaliphatic epoxy or phenoxy based) resin and a quantity of nano-powders of ferroelectric ceramic material (e.g., barium titanate) having a particle size substantially in the range of from about 0.01 microns to about 0.90 microns and a surface area for selected ones of said particles within the range of from about 2.0 to about 20 square meters per gram. A circuitized substrate adapted for using such a material and capacitor therein and a method of making such a substrate are also provided. An electrical assembly (substrate and at least one electrical component) and an information handling system (e.g., personal computer) are also provided.
    Type: Application
    Filed: January 10, 2005
    Publication date: July 13, 2006
    Applicant: Endicott Interconnect Technologies, Inc.
    Inventors: Rabindra Das, John Lauffer, Kostas Papathomas, Mark Poliks
  • Publication number: 20060154434
    Abstract: A method of forming a capacitive substrate in which first and second conductors are formed opposite a dielectric, with one of these electrically coupled to a thru-hole connection. Each functions as an electrode for the resulting capacitor. The substrate is then adapted for being incorporated within a larger structure to form a circuitized substrate such as a printed circuit board or a chip carrier. Additional capacitors are also possible.
    Type: Application
    Filed: July 5, 2005
    Publication date: July 13, 2006
    Applicant: Endicott Interconnect Technologies, Inc.
    Inventors: Rabindra Das, John Lauffer, Voya Markovich, James Matthews
  • Publication number: 20060154501
    Abstract: A material for use as part of an internal capacitor within a circuitized substrate includes a polymer resin and a quantity of nano-powders including a mixture of at least one metal component and at least one ferroelectric ceramic component, the ferroelectric ceramic component nano-particles having a particle size substantially in the range of between about 0.01 microns and about 0.9 microns and a surface within the range of from about 2.0 to about 20 square meters per gram. A circuitized substrate adapted for using such a material and capacitor therein and a method of making such a substrate are also provided. An electrical, assembly (substrate and at least one electrical component) and an information handling system (e.g., personal computer) are also provided.
    Type: Application
    Filed: January 4, 2006
    Publication date: July 13, 2006
    Applicant: Endicott Interconnect Technologies, Inc.
    Inventors: Rabindra Das, John Lauffer, Voya Markovich, Mark Poliks