Patents by Inventor Jerome Tsu-Rong Chu

Jerome Tsu-Rong Chu 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: 6764930
    Abstract: A metal oxide semiconductor (MOS) capacitor formed according to a process in which Fermi level enhanced oxidation is suppressed by the introduction of nitrogen impurities into an N-doped impurity region is formed to utilize the N-doped impurity region as a lower electrode and includes a capacitor dielectric having a reduced thickness with respect to other portions of the thermal oxide film formed over N-doped impurity regions. The capacitor is highly linear and includes a high capacitance density. The process used to form the capacitor includes thermally oxidizing a substrate such that an oxide film is formed to include multiple thicknesses including an enhanced oxide growth rate producing an oxide film of increased thickness in N-doped impurity regions and a section within nitrogen-doped impurity portions of the N-doped impurity region in which the enhanced oxidation growth is suppressed and the film formed in this region includes a desirably reduced thickness.
    Type: Grant
    Filed: September 26, 2001
    Date of Patent: July 20, 2004
    Assignee: Agere Systems Inc.
    Inventors: Jerome Tsu-Rong Chu, Sidhartha Sen
  • Publication number: 20030057465
    Abstract: A metal oxide semiconductor (MOS) capacitor formed according to a process in which Fermi level enhanced oxidation is suppressed by the introduction of nitrogen impurities into an N-doped impurity region is formed to utilize the N-doped impurity region as a lower electrode and includes a capacitor dielectric having a reduced thickness with respect to other portions of the thermal oxide film formed over N-doped impurity regions. The capacitor is highly linear and includes a high capacitance density. The process used to form the capacitor includes thermally oxidizing a substrate such that an oxide film is formed to include multiple thicknesses including an enhanced oxide growth rate producing an oxide film of increased thickness in N-doped impurity regions and a section within nitrogen-doped impurity portions of the N-doped impurity region in which the enhanced oxidation growth is suppressed and the film formed in this region includes a desirably reduced thickness.
    Type: Application
    Filed: September 26, 2001
    Publication date: March 27, 2003
    Inventors: Jerome Tsu-Rong Chu, Sidhartha Sen
  • Patent number: 6410974
    Abstract: The present invention provides for a method of manufacturing a simplified high Q inductor substrate and a semiconductor device having that substrate. The method for manufacturing the simplified high Q inductor substrate preferably includes forming a base substrate over a semiconductor wafer, wherein the base substrate has a given dopant concentration and then forming an epitaxial (EPI) layer over the base substrate. The EPI layer includes epitaxially forming a first doped region in the EPI layer over the base substrate and then epitaxially forming a second doped region in the EPI layer over the first doped region. The first doped region has a dopant concentration greater than the given dopant concentration of the base substrate, and the second doped region has a dopant concentration less than the first doped region.
    Type: Grant
    Filed: March 5, 2001
    Date of Patent: June 25, 2002
    Assignee: Agere Systems Guardian Corp.
    Inventors: Jerome Tsu-Rong Chu, John D. LaBarre, Wen Lin, Blair Miller
  • Publication number: 20010043136
    Abstract: An inductor for a semiconductor device comprises a plurality of loops connected in series and formed along a lateral axis of the semiconductor device. Each loop comprises a bottom leg, a top leg, and a pair of side legs. The bottom legs are parallel and extend along a first plane. The top legs are also parallel and extend along a second plane. The second plane is parallel to and separate from the first plane. The first and second planes are parallel to said lateral axis, and the side legs are perpendicular to the first and second planes. The top and side legs can be formed from copper. A barrier layer between the top legs and a substrate layer adjacent the top legs and between the side legs and the bottom legs and the substrate layer can also be provided. The barrier can be formed from tantalum.
    Type: Application
    Filed: July 9, 2001
    Publication date: November 22, 2001
    Inventor: Jerome Tsu-Rong Chu
  • Patent number: 6292086
    Abstract: An inductor for a semiconductor device comprises a plurality of loops connected in series and formed along a lateral axis of the semiconductor device. Each loop comprises a bottom leg, a top leg, and a pair of side legs. The bottom legs are parallel and extend along a first plane. The top legs are also parallel and extend along a second plane. The second plane is parallel to and separate from the first plane. The first and second planes are parallel to said lateral axis, and the side legs are perpendicular to the first and second planes. The top and side legs can be formed from copper. A barrier layer between the top legs and a substrate layer adjacent the top legs and between the side legs and the bottom legs and the substrate layer can also be provided. The barrier can be formed from tantalum.
    Type: Grant
    Filed: October 12, 1999
    Date of Patent: September 18, 2001
    Assignee: Agere Systems Guardian Corp.
    Inventor: Jerome Tsu-Rong Chu
  • Publication number: 20010009795
    Abstract: The present invention provides for a method of manufacturing a simplified high Q inductor substrate and a semiconductor device having that substrate. The method for manufacturing the simplified high Q inductor substrate preferably comprising forming a base substrate over a semiconductor wafer, wherein the base substrate has a given dopant concentration and then forming an epitaxial (EPI) layer over the base substrate. The EPI layer includes epitaxially forming a first doped region in the EPI layer over the base substrate and then epitaxially forming a second doped region in the EPI layer over the first doped region. The first doped region has a dopant concentration greater than the given dopant concentration of the base substrate, and the second doped region has a dopant concentration less than the first doped region.
    Type: Application
    Filed: March 5, 2001
    Publication date: July 26, 2001
    Inventors: Jerome Tsu-Rong Chu, John D. LaBarre, Wen Lin, Blair Miller
  • Patent number: 6225182
    Abstract: The present invention provides for a method of manufacturing a simplified high Q inductor substrate and a semiconductor device having that substrate. The method for manufacturing the simplified high Q inductor substrate preferably comprises forming a base substrate over a semiconductor wafer, wherein the base substrate has a given dopant concentration and then forming an epitaxial (EPI) layer over the base substrate. The EPI layer includes epitaxially forming a first doped region in the EPI layer over the base substrate and then epitaxially forming a second doped region in the EPI layer over the first doped region. The first doped region has a dopant concentration greater than the given dopant concentration of the base substrate, and the second doped region has a dopant concentration less than the first doped region.
    Type: Grant
    Filed: August 30, 1999
    Date of Patent: May 1, 2001
    Assignee: Agere Systems Guardian Corp.
    Inventors: Jerome Tsu-Rong Chu, John D. LaBarre, Wen Lin, Blair Miller
  • Patent number: 6187647
    Abstract: A method of forming an inductor for a semiconductor device comprises the steps of forming the bottom legs on a first substrate; depositing a second substrate layer over the first substrate; forming the pair of side legs for each loop through the second substrate layer; and, forming top legs connecting pairs of side legs extending from adjacent bottom legs. The step of providing the side legs includes forming a pair of vias through the second substrate layer to the bottom legs, and depositing side legs in the vias. The step of forming the top legs preferably includes forming a channel between the pairs of vias respectively communicating with the adjacent bottom legs, and depositing top legs in the channels. Additionally, the steps of forming the side and top legs are performed concurrently.
    Type: Grant
    Filed: October 12, 1999
    Date of Patent: February 13, 2001
    Assignee: Lucent Technologies Inc.
    Inventor: Jerome Tsu-Rong Chu