Patents by Inventor Azizuddin Tajuddin

Azizuddin Tajuddin 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).

  • Patent number: 8828480
    Abstract: The invention relates to thin film single layers, electronic components such as multilayer capacitors which utilize thin film layers, and to their methods of manufacture. Chemical solution deposition and microcontact printing of dielectric and electrode layers are disclosed. High permittivity BaTiO3 multilayer thin film capacitors are prepared on Ni foil substrates by microcontact printing and by chemical solution deposition. Multilayer capacitors with BaTiO3 dielectric layers and LaNiO3 internal electrodes are prepared, enabling dielectric layer thicknesses of 1 ??m or less. Microcontact printing of precursor solutions of the dielectric and electrode layers is used.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: September 9, 2014
    Assignee: The Penn State Research Foundation
    Inventors: Susan Trolier McKinstry, Clive A. Randall, Hajime Nagata, Pascal G. Pinceloup, James J. Baeson, Daniel J. Skamser, Michael S. Randall, Azizuddin Tajuddin
  • Patent number: 8717774
    Abstract: A capacitive interposer, electronic package having the capacitive interposer and electronic device with the electronic package is described. The interposer has a first planar face and a second planar face. An array of upper connections is on the first planar face and opposing lower connections are on the second planar face with conduction paths between each upper connection of the upper connections and a lower connection of the lower connections. At least one power feed-through capacitor is provided. The capacitor is mounted on the first planar face with the first external termination in direct electrical contact with a first upper connection and the second external termination is in direct electrical contact with a second upper connection. At least one upper connection, first external termination and second external termination are arranged for direct electrical contact with element contact pads of a common element.
    Type: Grant
    Filed: November 9, 2011
    Date of Patent: May 6, 2014
    Assignee: Kemet Electronics Corporation
    Inventors: Michael S. Randall, Garry Renner, John D. Prymak, Azizuddin Tajuddin
  • Patent number: 8414962
    Abstract: The invention relates to thin film single layers, electronic components such as multilayer capacitors which utilize thin film layers, and to their methods of manufacture. Chemical solution deposition and microcontact printing of dielectric and electrode layers are disclosed. High permittivity BaTiO3 multilayer thin film capacitors are prepared on Ni foil substrates by microcontact printing and by chemical solution deposition. Multilayer capacitors with BaTiO3 dielectric layers and LaNiO3 internal electrodes are prepared, enabling dielectric layer thicknesses of 1 ?m or less. Microcontact printing of precursor solutions of the dielectric and electrode layers is used.
    Type: Grant
    Filed: October 28, 2005
    Date of Patent: April 9, 2013
    Assignee: The Penn State Research Foundation
    Inventors: Susan Trolier McKinstry, Clive A. Randall, Hajime Nagata, Pascal I. Pinceloup, James J. Beeson, Daniel J. Skamser, Michael S. Randall, Azizuddin Tajuddin
  • Publication number: 20120081870
    Abstract: A capacitive interposer, electronic package having the capacitive interposer and electronic device with the electronic package is described. The interposer has a first planar face and a second planar face. An array of upper connections is on the first planar face and opposing lower connections are on the second planar face with conduction paths between each upper connection of the upper connections and a lower connection of the lower connections. At least one power feed-through capacitor is provided. The capacitor is mounted on the first planar face with the first external termination in direct electrical contact with a first upper connection and the second external termination is in direct electrical contact with a second upper connection. At least one upper connection, first external termination and second external termination are arranged for direct electrical contact with element contact pads of a common element.
    Type: Application
    Filed: November 9, 2011
    Publication date: April 5, 2012
    Applicant: Kemet Electronics Corporation
    Inventors: Michael S. Randall, Garry Renner, John D. Prymak, Azizuddin Tajuddin
  • Patent number: 8111524
    Abstract: A capacitive interposer, electronic package having the capacitive interposer and electronic device with the electronic package is described. The interposer has a first planar face and a second planar face. An array of upper connections is on the first planar face and opposing lower connections are on the second planar face with conduction paths between each upper connection of the upper connections and a lower connection of the lower connections. At least one power feed-through capacitor is provided. The capacitor has a plurality of parallel plates with a dielectric there between. At least one first external termination is in electrical contact with a first set of alternate parallel plates and at least one second external termination is in electrical contact with a second set of alternate parallel plates.
    Type: Grant
    Filed: February 12, 2008
    Date of Patent: February 7, 2012
    Assignee: Kemet Electronics Corporation
    Inventors: Michael S. Randall, Garry Renner, John D. Prymak, Azizuddin Tajuddin
  • Patent number: 7923395
    Abstract: A dielectric ceramic composition in a multilayer ceramic capacitor with a composition of formula: {[(CaO)t(SrO)1-t]m[(ZrO2)v(TiO2)1-v]}1-s-xAsEx wherein: A is a transition metal oxide; E is an oxide of an element selected from the group consisting of Ge, Si, Ga and combination thereof; m is 0.98 to 1.02; t is 0.50 to 0.90; v is 0.8 to 1.0; s and x are selected from the group consisting of: a) 0?x?0.08, 0.0001?s?0.043 and x?1.86s; and b) 0?0.0533, 0.0001?s?0.08 and x?0.667s.
    Type: Grant
    Filed: October 22, 2007
    Date of Patent: April 12, 2011
    Assignee: Kemet Electronics Corporation
    Inventors: Michael S. Randall, Corey Antoniades, Daniel E. Barber, Xilin Xu, James Beeson, Pascal Pinceloup, Abhijit Gurav, Thomas Poole, Azizuddin Tajuddin, Ian Burn
  • Patent number: 7916451
    Abstract: A dielectric ceramic composition in a multilayer ceramic capacitor with a composition of formula: {[(CaO)t(SrO)1-t]m[(ZrO2)v(TiO2)1-v]}1-s-xAsEx wherein: A is a transition metal oxide; E is an oxide of an element selected from the group consisting of Ge, Si, Ga and combinations thereof; m is 0.98 to 1.02; t is 0.50 to 0.90; v is 0.8 to 1.0; s and x are selected from the group consisting of: a) 0?x?0.08, 0.0001?s?0.043 and x?1.86s; and b) 0?x?0.0533, 0.0001?s?0.08 and x?0.667s.
    Type: Grant
    Filed: June 11, 2009
    Date of Patent: March 29, 2011
    Assignee: Kemet Electronics Corporation
    Inventors: Michael S. Randall, Corey Antoniades, Daniel E. Barber, Xilin Xu, James Beeson, Pascal Pinceloup, Abhijit Gurav, Thomas Poole, Azizuddin Tajuddin, Ian Burn
  • Patent number: 7670981
    Abstract: A dielectric ceramic composition in a multilayer ceramic capacitor with a composition of formula: {[(CaO)t(SrO)1-t]m[(ZrO2)v(TiO2)1-v]}1-s-xAsEx wherein: A is a transition metal oxide; E is an oxide of an element selected from the group consisting of Ge, Si, Ga and combinations thereof; m is 0.98 to 1.02; t is 0.50 to 0.90; v is 0.8 to 1.0; s and x are selected from the group consisting of: a) 0?x?0.08, 0.0001?s?0.043 and x?1.86s; and b) 0?x?0.0533, 0.0001?s?0.08 and x?0.667s.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: March 2, 2010
    Assignee: Kemet Electronics Corporation
    Inventors: Michael S. Randall, Corey Antoniades, Daniel E. Barber, Xilin Xu, James Beeson, Pascal Pinceloup, Abhijit Gurav, Thomas Poole, Azizuddin Tajuddin, Ian Burn
  • Publication number: 20090244804
    Abstract: A dielectric ceramic composition in a multilayer ceramic capacitor with a composition of formula: {[(CaO)t(SrO)1-t]m[(ZrO2)v(TiO2)1-v]}1-s-xAsEx wherein: A is a transition metal oxide; E is an oxide of an element selected from the group consisting of Ge, Si, Ga and combinations thereof; m is 0.98 to 1.02; t is 0.50 to 0.90; v is 0.8 to 1.0; s and x are selected from the group consisting of: a) 0?x?0.08, 0.0001?s?0.043 and x?1.86s; and b) 0?x?0.0533, 0.0001?s?0.08 and x?0.667s.
    Type: Application
    Filed: June 11, 2009
    Publication date: October 1, 2009
    Inventors: Michael S. Randall, Corey Antoniades, Daniel E. Barber, Xilin Xu, James Beeson, Pascal Pinceloup, Abhijit Gurav, Thomas Poole, Azizuddin Tajuddin, Ian Burn
  • Publication number: 20090046411
    Abstract: A dielectric ceramic composition in a multilayer ceramic capacitor with a composition of formula: {[(CaO)t(SrO)1-t]m[(ZrO2)v(TiO2)1-v]}1-s-xAsEx wherein: A is a transition metal oxide; E is an oxide of an element selected from the group consisting of Ge, Si, Ga and combinations thereof; m is 0.98 to 1.02; t is 0.50 to 0.90; v is 0.8 to 1.0; s and x are selected from the group consisting of: a) 0?x?0.08, 0.0001?s?0.043 and x?1.86s; and b) 0?x?0.0533, 0.0001?s?0.08 and x?0.667s.
    Type: Application
    Filed: October 24, 2008
    Publication date: February 19, 2009
    Inventors: Michael S. Randall, Corey Antoniades, Daniel E. Barber, Xilin Xu, James Beeson, Pascal Pinceloup, Abhijit Gurav, Thomas Poole, Azizuddin Tajuddin, Ian Burn
  • Publication number: 20080239621
    Abstract: A capacitor with a multiplicity of first plates and second plates in parallel relationship wherein the first plates terminate at a first face and the second plates terminate at a second face. A dielectric is between the first plates and the second plates. A first external termination is in electrical contact with the first plates and a second external termination is in electrical contact with the second plates. A first lead terminal is in electrical contact with the first external termination and the first lead terminal has a first foot below the first external termination and a first solder stop coated on the first foot between the first foot and the first external termination. A second lead terminal is in electrical contact with the second external termination wherein the second lead terminal comprises a second foot below the second external termination and a second solder stop is coated on the second foot between the second foot and the second external termination.
    Type: Application
    Filed: March 29, 2007
    Publication date: October 2, 2008
    Inventors: Azizuddin Tajuddin, Michael S. Randall, Roy Grace, Mark R. Laps
  • Publication number: 20080236717
    Abstract: A process for forming a multilayer ceramic capacitor. The process includes depositing a ceramic precursor on a substrate and an electrode ink in a predetermined pattern on the ceramic precursor to form a green sheet. The electrode ink has an adhesion promoter incorporated therein. The green sheet is overlayed with at least one second green sheet to form a layered green sheet which is then fused under pressure.
    Type: Application
    Filed: May 7, 2008
    Publication date: October 2, 2008
    Inventors: Abhijit Gurav, Azizuddin Tajuddin, Daniel Skamser, Garry Renner, March Maguire, Michael S. Randall, Randal Vaughan
  • Publication number: 20080192452
    Abstract: A capacitive interposer, electronic package having the capacitive interposer and electronic device with the electronic package is described. The interposer has a first planar face and a second planar face. An array of upper connections is on the first planar face and opposing lower connections are on the second planar face with conduction paths between each upper connection of the upper connections and a lower connection of the lower connections. At least one capacitor is provided. The capacitor has a plurality of parallel plates with a dielectric there between. At least one first external termination is in electrical contact with a first set of alternate parallel plates and at least one second external termination is in electrical contact with a second set of alternate parallel plates.
    Type: Application
    Filed: February 12, 2007
    Publication date: August 14, 2008
    Inventors: Michael S. Randall, Garry Renner, John D. Prymak, Azizuddin Tajuddin
  • Publication number: 20080123251
    Abstract: A process for forming a capacitive couple. The process includes forming a highly porous body of a conducting material with interior struts and voids in electrical contact. A dielectric layer is formed in the voids on the struts with a material having a dielectric constant above 100. An insulating layer is formed on the struts not covered by the dielectric layer. A conductive layer is formed on the dielectric layer and on the insulating layer.
    Type: Application
    Filed: November 28, 2006
    Publication date: May 29, 2008
    Inventors: Michael S. Randall, Peter Blais, Pascal Pinceloup, Daniel J. Skamser, Abhijit Gurav, Azizuddin Tajuddin, John T. Kinard, Philip Lessner
  • Publication number: 20080107800
    Abstract: A dielectric ceramic composition in a multilayer ceramic capacitor with a composition of formula: {[(CaO)t(SrO)1-t]m[(ZrO2)v(TiO2)1-v]}1-s-xAsEx wherein: A is a transition metal oxide; E is an oxide of an element selected from the group consisting of Ge, Si, Ga and combination thereof; m is 0.98 to 1.02; t is 0.50 to 0.90; v is 0.8 to 1.0; s and x are selected from the group consisting of: a) 0?x?0.08, 0.0001?s?0.043 and x?1.86s; and b) 0?0.0533, 0.0001?s?0.08 and x?0.667s.
    Type: Application
    Filed: October 22, 2007
    Publication date: May 8, 2008
    Inventors: Michael Randall, Corey Antoniades, Daniel Barber, Xilin Xu, James Beeson, Pascal Pinceloup, Abhijit Gurav, Thomas Poole, Azizuddin Tajuddin, Ian Burn
  • Publication number: 20080026136
    Abstract: A process for forming a multilayer ceramic device. The device includes forming a ceramic precursor layer followed by ink jet printing in alternating order an electrode precursor in a predetermined pattern on the ceramic precursor layer to form an electrode and a ceramic ink on the electrode. The ceramic precursor is then sintered.
    Type: Application
    Filed: July 24, 2006
    Publication date: January 31, 2008
    Inventors: Daniel J. Skamser, Michael S. Randall, J. Thomas Hochheimer, Azizuddin Tajuddin
  • Publication number: 20070275158
    Abstract: A dielectric ceramic composition in a multilayer ceramic capacitor having a composition of formula: ((CaO)t(SrO)1-t(ZrO2)v(TiO2)1-v)1-s-x-y-zAsExGyHz wherein: A is a transition metal oxide; E is an oxide of a group III or IV element; G is an oxide of a group II element; H is an oxide of a lanthamide; t is 0.50 to 0.90; v is 0.8 to 1.0; s is 0.0001 to 0.08; x is 0 to 0.08; y is 0 to 0.20; and z is 0 to 0.20.
    Type: Application
    Filed: June 4, 2007
    Publication date: November 29, 2007
    Inventors: Michael Randall, Corey Antoniades, Daniel Barber, Xilin Xu, James Beeson, Pascal Pinceloup, Abhijit Gurav, Tom Poole, Azizuddin Tajuddin, Ian Burn
  • Publication number: 20070259104
    Abstract: A dielectric ceramic composition in a multilayer ceramic capacitor having a composition of formula: ((CaO)t(SrO)1-t(ZrO2)v(TiO2)1-v)1-s-x-y-zAsExGyHz wherein: A is a transition metal oxide; E is an oxide of a group III or IV element; G is an oxide of a group II element; H is an oxide of a lanthanide; t is 0.50 to 0.90; v is 0.8 to 1.0; s is 0.0001 to 0.08; x is 0 to 0.08; y is 0 to 0.20; and z is 0 to 0.20.
    Type: Application
    Filed: June 4, 2007
    Publication date: November 8, 2007
    Inventors: Michael Randall, Corey Antoniades, Daniel Barber, Xilin Xu, James Beeson, Pascal Pinceloup, Abhijit Gurav, Tom Poole, Azizuddin Tajuddin, Ian Burn
  • Patent number: 7292429
    Abstract: A low inductance multi-layer capacitor. The capacitor includes interleaved parallel internal electrode plates with dielectric there between. Each internal electrode plate includes two lead-out tabs and is generally T shaped. A first external electrode terminal is electrically connected to the lead-out tabs of the even internal electrode plates, and a second external electrode terminal is electrically connected to the lead-out tabs of the odd internal electrode plates. The external electrode terminals are on a common first exterior surface and a common opposing second exterior surface of the capacitor.
    Type: Grant
    Filed: January 18, 2006
    Date of Patent: November 6, 2007
    Assignee: Kemet Electronics Corporation
    Inventors: Michael S. Randall, John Prymak, Azizuddin Tajuddin
  • Publication number: 20070253140
    Abstract: A ceramic capacitor is disclosed. The capacitor comprises a plurality of base metal inner electrode layers, a plurality of ceramic dielectric layers between the inner electrode layers, and external electrodes in electrical conductivity with the inner electrode layers. At least one secondary component having an intentionally added chemistry is dispersed in the inner electrode layers and/or the dielectric layers. The chemistry evolves an oxidizing species in a controlled manner, such that it offsets localized highly reducing atmospheres that are present when the capacitor is fired in a reducing atmosphere, thereby promoting enhanced electrode connectivity in thin layer base metal multilayer capacitors.
    Type: Application
    Filed: April 28, 2006
    Publication date: November 1, 2007
    Inventors: Michael Randall, Ian Burn, Daniel Barber, Aiying Wang, James Beeson, Pascal Pinceloup, Abhijit Gurav, Tom Poole, Azizuddin Tajuddin