Patents by Inventor Dan Mihai Mocuta

Dan Mihai Mocuta 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: 20240284663
    Abstract: A variety of applications can include an apparatus having one or more pairs of transistors sharing a common source region that provide asymmetric transistor devices. The drains of the transistors of a pair sharing a common source region can be structured with the source junction depth being shallower than the drain junction depth of the drain region of at least one of the transistors of the pair. Tilted implantation can be used to extend a drain junction depth beyond the distance of the source junction depth by implanting additional dopants. The extension of the drain junction depth can be accomplished without additional masks being used in processing to dope only a drain region and skip doping on a corresponding source region.
    Type: Application
    Filed: February 13, 2024
    Publication date: August 22, 2024
    Inventors: Srinivas Pulugurtha, Dan Mihai Mocuta
  • Publication number: 20240071832
    Abstract: A variety of applications can include apparatus having p-channel metal-oxide-semiconductor (PMOS) transistors and n-channel metal-oxide-semiconductor (NMOS) transistors with different metal silicide contacts. The active area of the NMOS transistor can include a first metal silicide having a first metal element, where the first metal silicide is a vertical lowest portion of a contact for the NMOS. The PMOS transistor can include a stressor source/drain region to a channel region of the PMOS transistor and a second metal silicide directly contacting the stressor source/drain region without containing the first metal element. The process flow to form the PMOS and NMOS transistors can enable making simultaneous contacts by a pre-silicide in the active area of the NMOS transistor, without affecting stressor source/drain regions in the PMOS transistor. The process flow and resulting structures for PMOS transistors and NMOS transistors can be used in various integrated circuits and devices.
    Type: Application
    Filed: August 30, 2022
    Publication date: February 29, 2024
    Inventors: Ronald Allen Weimer, Toshihiko Miyashita, Dan Mihai Mocuta, Christopher W. Petz
  • Publication number: 20240064987
    Abstract: Apparatus and methods are disclosed, including transistors, semiconductor devices and systems. Example semiconductor devices and methods include silicide contacts on source/drain regions in different conductivity type transistors. In one example, silicide contacts are different between transistors of different conductivity types.
    Type: Application
    Filed: August 16, 2022
    Publication date: February 22, 2024
    Inventors: Toshihiko Miyashita, Ronald Allen Weimer, Dan Mihai Mocuta
  • Publication number: 20240055523
    Abstract: Electronic devices and methods are disclosed, including transistors with thick gate dielectric layers. Selected devices and methods shown include multiple layer gate dielectrics. Selected devices and methods shown include a gate dielectric with a first layer having a first width, and a second layer over the first layer, wherein the second layer has a second width smaller than the first width.
    Type: Application
    Filed: August 9, 2022
    Publication date: February 15, 2024
    Inventors: Bingwu Liu, Shivani Srivastava, Dan Mihai Mocuta
  • Publication number: 20230335582
    Abstract: Apparatus and methods are disclosed, including memory devices and systems. Example memory devices, systems and methods include semiconductor devices having two or more fins, the fins separated by one or more inter-fin trenches. An isolation structure is included adjacent to the two or more fins, the isolation structure having a depth greater than the inter-fin trench depth.
    Type: Application
    Filed: April 13, 2022
    Publication date: October 19, 2023
    Inventors: Shivani Srivastava, Toshihiko Miyashita, Dan Mihai Mocuta, Bingwu Liu, Stephen David Snyder
  • Patent number: 9059194
    Abstract: Partial removal of organic planarizing layer (OPL) material forms a plug of OPL material within an aperture that protects underlying material or electronic device such as a deep trench capacitor during other manufacturing processes. The OPL plug thus can absorb any differences or non-uniformity in, for example, etch rates across the chip or wafer and preserve recess dimensions previously formed. Control of a lateral component of later removal of the OPL plug by etching also can increase tolerance of overlay error in forming connections and thus avoid loss in manufacturing yield.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: June 16, 2015
    Assignee: International Business Machines Corporation
    Inventors: Colin J. Brodsky, Anne C. Friedman, Herbert Lei Ho, Byeong Yeol Kim, Dan Mihai Mocuta, Garrett W. Oakley, Chienfan Yu
  • Publication number: 20150102463
    Abstract: Partial removal of organic planarizing layer (OPL) material forms a plug of OPL material within an aperture that protects underlying material or electronic device such as a deep trench capacitor during other manufacturing processes. The OPL plug thus can absorb any differences or non-uniformity in, for example, etch rates across the chip or wafer and preserve recess dimensions previously formed. control of a lateral component of later removal of the OPL plug by etching also can increase tolerance of overlay error in forming connections and thus avoid loss in manufacturing yield.
    Type: Application
    Filed: December 22, 2014
    Publication date: April 16, 2015
    Inventors: Colin J. Brodsky, Anne C. Friedman, Herbert Lei Ho, Byeong Yeol Kim, Dan Mihai Mocuta, Garrett W. Oakley, Chienfan Yu
  • Publication number: 20140191366
    Abstract: Partial removal of organic planarizing layer (OPL) material forms a plug of OPL material within an aperture that protects underlying material or electronic device such as a deep trench capacitor during other manufacturing processes. The OPL plug thus can absorb any differences or non-uniformity in, for example, etch rates across the chip or wafer and preserve recess dimensions previously formed. control of a lateral component of later removal of the OPL plug by etching also can increase tolerance of overlay error in forming connections and thus avoid loss in manufacturing yield.
    Type: Application
    Filed: January 10, 2013
    Publication date: July 10, 2014
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Colin J. Brodsky, Anne C. Friedman, Herbert Lei Ho, Byeong Yeol Kim, Dan Mihai Mocuta, Garrett W. Oakley, Chienfan Yu