Patents by Inventor Men-Chee Chen

Men-Chee Chen 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: 20040063284
    Abstract: An interpoly dielectric is formed using only a single layer of oxide and a single layer of nitride to allow a reduction in thickness. The nitride is thermally grown on silicon in a nitrogen environment to maintain a high quality layer, while the oxide is deposited by LPCVD.
    Type: Application
    Filed: September 30, 2003
    Publication date: April 1, 2004
    Applicant: Texas Instruments Incorporated
    Inventors: Cetin Kaya, Men Chee Chen, Kemal Tamer San
  • Publication number: 20020084482
    Abstract: An interpoly dielectric is formed using only a single layer of oxide and a single layer of nitride to allow a reduction in thickness. The nitride is thermally grown on silicon in a nitrogen environment to maintain a high quality layer, while the oxide is deposited by LPCVD.
    Type: Application
    Filed: November 8, 2001
    Publication date: July 4, 2002
    Inventors: Cetin Kaya, Men Chee Chen, Kemal Tamer San
  • Publication number: 20020063279
    Abstract: A semiconductor device includes a substrate and an oxide layer disposed outwardly from the substrate. The semiconductor device also includes a polysilicon layer disposed outwardly from the oxide layer, the oxide layer having an interface between the oxide layer and the polysilicon layer, the interface having asperities such that the barrier potential between the polysilicon layer and the substrate is reduced in response to the asperities.
    Type: Application
    Filed: November 30, 2000
    Publication date: May 30, 2002
    Inventors: Men-Chee Chen, Katherine E. Violette, Cetin Kaya, Rick L. Wise
  • Patent number: 6235581
    Abstract: The invention comprises a floating gate memory structure, a method for making a floating gate memory structure, and a method for forming a continuous source line in a floating gate memory structure. One aspect of the invention is a method for forming a continuous source line. A plurality of trenches and moats are formed in a semiconductor structure wherein the moats are adjacent to the trenches. A portion of each moat forms the source region of a transistor. A silicate glass layer is deposited outwardly from a semiconductor structure to form an intermediate structure. The silicate glass layer contains an n-type dopant. The intermediate structure is heated for a first period of time to dope the plurality of trenches. Portions of the doped plurality of trenches form a part of at least one continuous source line.
    Type: Grant
    Filed: July 1, 1998
    Date of Patent: May 22, 2001
    Assignee: Texas Instruments Incorporated
    Inventor: Men-Chee Chen
  • Patent number: 6162683
    Abstract: A method of forming a floating gate memory device having a memory array region (11), a first periphery region (15), and a second periphery region (17) is provided that comprises forming a polysilicon gate (18) insulatively disposed outwardly from a substrate (10) in the memory array region (11). The polysilicon gate (18) is doped with nitrogen ions. A first oxide layer (20) is formed outwardly from the substrate (10) in the first and second periphery regions (15) and (17) and from the polysilicon gate (18) of the memory array region (11). The thickness of oxide formed outwardly from the substrate (10) is greater relative to the thickness of oxide formed outwardly from the polysilicon gate (18). The first oxide layer (20) in the second periphery region (17) is removed. A second oxide layer (22) is formed outwardly from the substrate (10) of the second periphery region (13), from the first oxide layer (20) in the first periphery region (15) and from the polysilicon gate (18) of the memory array region (11).
    Type: Grant
    Filed: December 18, 1998
    Date of Patent: December 19, 2000
    Assignee: Texas Instruments Incorporated
    Inventor: Men-Chee Chen
  • Patent number: 6087220
    Abstract: A method of forming a floating gate memory array is provided that uses a two step etch process to prevent the formation of unwanted trenches 66 into the semiconductor substrate 26. The process may be accomplished by a first etch which is substantially not selective between silicon and dielectric materials. A second etch process is then used which is highly selective to dielectric materials.
    Type: Grant
    Filed: July 29, 1998
    Date of Patent: July 11, 2000
    Assignee: Texas Instruments Incorporated
    Inventors: Daty Michael Rogers, Reima T. Laaksonen, Cetin Kaya, Freidoon Mehrad, Men-Chee Chen
  • Patent number: 5998809
    Abstract: A room temperature emitter (10) operating in the 3-5 .mu.m wavelength range is provided. The emitter (10) includes a substrate (12) formed of a material selected from the group comprising cadmium telluride or cadmium zinc telluride. An epitaxial active layer (14) is formed over the substrate (12) from mercury cadmium telluride. The active layer (14) may be either a p-type or an n-type layer. The active layer (14) is doped with a predetermined concentration of dopant selected from the group comprising indium and arsenic. More particularly, if the active layer (14) is a p-type layer, it is doped with arsenic in a concentration between approximately 1.times.10.sup.16 atoms/cm.sup.3 and 1.times.10.sup.17 atoms/cm.sup.3. If the active layer (14) is an n-type layer, it is doped with indium in a concentration between approximately 5.times.10.sup.14 atoms/cm.sup.3 to 1.times.10.sup.15 atoms/cm.sup.3. A first epitaxial confinement layer (16) is formed from mercury cadmium telluride.
    Type: Grant
    Filed: October 4, 1996
    Date of Patent: December 7, 1999
    Assignee: Raytheon Company
    Inventors: Men-Chee Chen, Malcolm J. Bevan
  • Patent number: 5459408
    Abstract: A system and method for testing the properties of semiconductor material including an enclosed chamber, a sample of semiconductor material under test having a polished surface portion and insulator layer over the polished surface portion supported in the chamber, a spring probe disposed within the chamber impinging against the insulator layer, a contact disposed on a surface portion of the semiconductor material under test, a pair of contacts disposed external to the chamber, each of the pair of contacts coupled to a different one of the contact and the spring probe and a container supporting the chamber and containing a cryogenic material therein surrounding the chamber. The semiconductor material is preferably a group II-VI composition, preferably HgCdTe. The contact disposed on the surface portion of the semiconductor material is preferably indium. A support, preferably sapphire, is provided for the sample.
    Type: Grant
    Filed: March 23, 1994
    Date of Patent: October 17, 1995
    Assignee: Texas Instruments Incorporated
    Inventor: Men-chee Chen
  • Patent number: 5309088
    Abstract: A system and method for testing the properties of semiconductor material including an enclosed chamber, a sample of semiconductor material under test having a polished surface portion and insulator layer over the polished surface portion supported in the chamber, a spring probe disposed within the chamber impinging against the insulator layer, a contact disposed on a surface portion of the semiconductor material under test, a pair of contacts disposed external to the chamber, each of the pair of contacts coupled to a different one of the contact and the spring probe and a container supporting the chamber and containing a cryogenic material therein surrounding the chamber. The semiconductor material is preferably a group II-VI composition, preferably HgCdTe. The contact disposed on the surface portion of the semiconductor material is preferably indium. A support, preferably sapphire, is provided for the sample.
    Type: Grant
    Filed: August 10, 1990
    Date of Patent: May 3, 1994
    Assignee: Texas Instruments Incorporated
    Inventor: Men-Chee Chen