Patents by Inventor Michael RIZZOLO

Michael RIZZOLO 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: 20200203164
    Abstract: A method for manufacturing a semiconductor device includes forming one or more memory device layers over a contact structure. In the method, a plurality of hardmask layers are deposited on the one or more memory device layers in a stacked configuration. Alternating hardmask layers of the stacked configuration are different from each other in at least one respect. The method further includes patterning the plurality of hardmask layers and the one or more memory device layers into a pillar over the contact structure.
    Type: Application
    Filed: March 2, 2020
    Publication date: June 25, 2020
    Inventors: Michael Rizzolo, Ashim Dutta, Oscar van der Straten, Chih-Chao Yang
  • Patent number: 10692925
    Abstract: A method for fabricating a semiconductor device includes forming one or more encapsulation spacers each about respective ones of one more memory pillar elements to have a geometry, including forming each encapsulation spacer to have a footing of at least about twice a critical dimension of its corresponding pillar, and depositing dielectric material on the one or more memory pillar elements and the one or more encapsulation spacers to form an interlayer dielectric free of voids based on the geometry.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: June 23, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Michael Rizzolo, Theodorus E. Standaert, Isabel Cristina Chu, Chih-Chao Yang, Son Nguyen
  • Patent number: 10679934
    Abstract: A semiconductor interconnect structure and a method of fabricating the same are provided. The semiconductor interconnect structure includes a sea of interconnect lines including metal lines and neighboring dummy lines. The semiconductor interconnect structure further includes a dielectric layer arranged between the sea of lines.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: June 9, 2020
    Assignee: International Business Machines Corporation
    Inventors: Benjamin D. Briggs, Lawrence A. Clevenger, Huai Huang, Christopher J. Penny, Michael Rizzolo, Hosadurga Shobha
  • Patent number: 10680169
    Abstract: Multilayered hardmask structures are provided which can prevent degradation of the performance of a magnetic tunnel junction (MTJ) structure. The multilayered hardmask structures include at least a halogen barrier hardmask layer and an upper hardmask layer. The halogen barrier hardmask layer can prevent halogen ions that are used to pattern the upper hardmask layer from diffusing into the MTJ structure.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: June 9, 2020
    Assignee: International Business Machines Corporation
    Inventors: Michael Rizzolo, Daniel C. Edelstein, Theodorus E. Standaert, Kisup Chung, Isabel C. Chu, John C. Arnold
  • Publication number: 20200176263
    Abstract: A semiconductor device and method of formation thereof. The semiconductor device includes a portion of a first material that abuts a portion of a second material and surrounds at least a portion of a semiconductor component. The first material has a first composition and a first index of refraction and is of a same type of material as the second material. The second material has a second composition and a second index of refraction. An opening in the first material exposes a portion of the semiconductor component.
    Type: Application
    Filed: November 29, 2018
    Publication date: June 4, 2020
    Inventors: Mona A. Ebrish, Michael Rizzolo, Son Nguyen, Raghuveer R. Patlolla, Donald F. Canaperi
  • Publication number: 20200176388
    Abstract: A semiconductor wafer has a top surface, a dielectric insulator, a plurality of narrow copper wires, a plurality of wide copper wires, an optical pass through layer over the top surface, and a self-aligned pattern in a photo-resist layer. The plurality of wide copper wires and the plurality of narrow copper wires are embedded in a dielectric insulator. The width of each wide copper wire is greater than the width of each narrow copper. An optical pass through layer is located over the top surface. A self-aligned pattern in a photo-resist layer, wherein photo-resist exists only in areas above the wide copper wires, is located above the optical pass through layer.
    Type: Application
    Filed: February 5, 2020
    Publication date: June 4, 2020
    Inventors: Benjamin D. BRIGGS, Cornelius Brown PEETHALA, Michael RIZZOLO, Koichi MOTOYAMA, Gen TSUTSUI, Ruqiang BAO, Gangadhara Raja MUTHINTI, Lawrence A. CLEVENGER
  • Publication number: 20200176673
    Abstract: Aspects of the invention are directed to a method of forming an integrated circuit. Both a dielectric layer and a bottom contact are formed with the bottom contact disposed at least partially in the dielectric layer. The bottom contact is subsequently recessed into the dielectric layer to cause the dielectric layer to define two sidewalls bordering regions of the bottom contact removed during recessing. Two sidewall spacers are then formed along the two sidewalls. A landing pad is formed on the recessed bottom contact and between the two sidewall spacers. Lastly, an additional feature is formed on top of the landing pad at least in part by anisotropic etching. In one or more embodiments, the additional feature includes a magnetic tunnel junction patterned at least in part by ion beam etching.
    Type: Application
    Filed: November 30, 2018
    Publication date: June 4, 2020
    Inventors: Kisup Chung, Michael Rizzolo, Fee Li Lie
  • Patent number: 10672611
    Abstract: A method for manufacturing a semiconductor device includes forming one or more memory device layers over a contact structure. In the method, a plurality of hardmask layers are deposited on the one or more memory device layers in a stacked configuration. Alternating hardmask layers of the stacked configuration are different from each other in at least one respect. The method further includes patterning the plurality of hardmask layers and the one or more memory device layers into a pillar over the contact structure.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: June 2, 2020
    Assignee: International Business Machines Corporation
    Inventors: Michael Rizzolo, Ashim Dutta, Oscar van der Straten, Chih-Chao Yang
  • Patent number: 10672984
    Abstract: A method is presented for protecting resistive random access memory (RRAM) stacks within a resistive memory crossbar array. The method includes forming a plurality of conductive lines within an interlayer dielectric (ILD), forming a RRAM stack including a bottom electrode, a top electrode, and a bi-layer hardmask, forming a low-k dielectric layer over the RRAM stack, removing a first layer of the bi-layer hardmask during a via opening, and removing a second layer of the bilayer hardmask concurrently with a plurality of sacrificial layers formed over the low-k dielectric layer.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: June 2, 2020
    Assignee: International Business Machines Corporation
    Inventors: Takashi Ando, Michael Rizzolo, Lawrence A. Clevenger, Shyng-Tsong Chen
  • Publication number: 20200161239
    Abstract: Techniques facilitating back end of line electrical fuse structure and method of fabrication are provided. A device can comprise a first metal interconnect formed in a dielectric layer of a semiconductor chip. The device can also comprise a second metal interconnect formed in the dielectric layer and adjacent to the first metal interconnect. Further, the device can comprise a vertical electrical fuse element comprising a first portion of a conductive material deposited on a first surface of the first metal interconnect and a second portion of the conductive material deposited on a second surface of the second metal interconnect. The vertical electrical fuse element can comprise a first region comprising a first thickness and a second region comprising a second thickness different than the first thickness.
    Type: Application
    Filed: January 24, 2020
    Publication date: May 21, 2020
    Inventors: Benjamin D. Briggs, Lawrence A. Clevenger, Michael Rizzolo, Chih-Chao Yang
  • Patent number: 10658589
    Abstract: An intermediate semiconductor device structure includes a first area including a memory stack area and a second area including an alignment mark area. The intermediate structure includes a metal interconnect arranged on a substrate in the first area and a first electrode layer arranged on the metal interconnect in the first area, and in the second area. The intermediate structure includes an alignment assisting marker arranged in the second area. The intermediate structure includes a dielectric layer and a second electrode layer arranged on the alignment assisting marker in the second area and on the metal interconnect in the first area. The intermediate structure includes a hard mask layer arranged on the second electrode area. The hard mask layer provides a raised area of topography over the alignment assisting marker. The intermediate structure includes a resist arranged on the hard mask layer in the first area.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: May 19, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Hao Tang, Michael Rizzolo, Injo Ok, Theodorus E. Standaert
  • Patent number: 10651078
    Abstract: A method is presented forming a fully-aligned via (FAV) and airgaps within a semiconductor device. The method includes forming a plurality of copper (Cu) trenches within an insulating layer, forming a plurality of ILD regions over exposed portions of the insulating layer, selectively removing a first section of the ILD regions in an airgap region, and maintaining a second section of the ILD regions in a non-airgap region. The method further includes forming airgaps in the airgap region and forming a via in the non-airgap region contacting a Cu trench of the plurality of Cu trenches.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: May 12, 2020
    Assignee: Tessera, Inc.
    Inventors: Christopher J. Penny, Benjamin D. Briggs, Huai Huang, Lawrence A. Clevenger, Michael Rizzolo, Hosadurga Shobha
  • Publication number: 20200144491
    Abstract: Multilayered hardmask structures are provided which can prevent degradation of the performance of a magnetic tunnel junction (MTJ) structure. The multilayered hardmask structures include at least a halogen barrier hardmask layer and an upper hardmask layer. The halogen barrier hardmask layer can prevent halogen ions that are used to pattern the upper hardmask layer from diffusing into the MTJ structure.
    Type: Application
    Filed: December 18, 2019
    Publication date: May 7, 2020
    Inventors: Michael Rizzolo, Daniel C. Edelstein, Theodorus E. Standaert, Kisup Chung, Isabel C. Chu, John C. Arnold
  • Publication number: 20200127194
    Abstract: Embodiments of the invention are directed to a method of forming a memory element pillar. The method includes forming memory element stack layers, forming a conductive cap layer over the memory element stack layers, forming a conductive seal layer over the cap layer, and forming a conductive etch stop layer over the conductive seal layer, wherein the conductive etch stop layer comprises a substantially planar surface. A hardmask is formed over the substantially planar surface of the conductive etch stop layer, wherein the hardmask defines dimensions of the memory element pillar.
    Type: Application
    Filed: October 19, 2018
    Publication date: April 23, 2020
    Inventors: Michael Rizzolo, Theodorus E. Standaert, Cornelius Brown Peethala
  • Publication number: 20200125969
    Abstract: The present invention provides for a cognitive system using an autonomous vehicle includes a plurality of sensors configured to obtain the weather forecast for a pollution detectable area; a cognitive input to determine the pollution detectable area having highest sensitivity of pollution; a light detecting and ranging system configured to spatially probe pollution levels distributed in the pollution detectable area; an evaluation system to evaluate the probed pollution levels in the pollution detectable area; and a recommendation system for recommending an action to be taken based on evaluation system results of the probed pollution levels in the pollution detectable area, wherein the pollution levels are detected based light emitted by the light detecting and ranging system.
    Type: Application
    Filed: October 19, 2018
    Publication date: April 23, 2020
    Inventors: Benjamin D. Briggs, Lawrence A. Clevenger, Leigh Anne H. Clevenger, Michael Rizzolo
  • Publication number: 20200126791
    Abstract: A method for manufacturing a semiconductor device includes forming one or more memory device layers over a contact structure. In the method, a plurality of hardmask layers are deposited on the one or more memory device layers in a stacked configuration. Alternating hardmask layers of the stacked configuration are different from each other in at least one respect. The method further includes patterning the plurality of hardmask layers and the one or more memory device layers into a pillar over the contact structure.
    Type: Application
    Filed: October 19, 2018
    Publication date: April 23, 2020
    Inventors: Michael Rizzolo, Ashim Dutta, Oscar van der Straten, Chih-Chao Yang
  • Patent number: 10629478
    Abstract: A method of forming a semiconductor device includes forming a dielectric spacer along sidewalls of a plurality of interconnect openings extending through a sacrificial dielectric layer and a first dielectric layer until a top portion of a first conductive material, the dielectric spacer includes a dielectric material having a dielectric constant higher than a dielectric constant of the sacrificial dielectric layer and higher than a dielectric constant of the first dielectric layer, conformally depositing a barrier liner within the plurality of interconnect openings above and in direct contact with the dielectric spacer, filling the interconnect openings with a second conductive material, removing the sacrificial dielectric layer to expose portions of the dielectric spacer above the first dielectric layer, and reducing a thickness of exposed portions of the dielectric spacer.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: April 21, 2020
    Assignee: International Business Machines Corporation
    Inventors: Benjamin D. Briggs, Lawrence A. Clevenger, Huai Huang, Christopher J. Penny, Michael Rizzolo, Hosadurga Shobha
  • Patent number: 10629529
    Abstract: A semiconductor device includes a porous dielectric layer including a recessed portion, a conductive layer formed in the recessed portion, and a cap layer formed on the porous dielectric layer and on the conductive layer in the recessed portion, an upper surface of the porous dielectric layer being exposed through a gap in the cap layer.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: April 21, 2020
    Assignee: Tessera, Inc.
    Inventors: Benjamin David Briggs, Lawrence A. Clevenger, Bartlet H. Deprospo, Huai Huang, Christopher J. Penny, Michael Rizzolo
  • Publication number: 20200119089
    Abstract: A method for fabricating a semiconductor device includes forming one or more encapsulation spacers each about respective ones of one more memory pillar elements to have a geometry, including forming each encapsulation spacer to have a footing of at least about twice a critical dimension of its corresponding pillar, and depositing dielectric material on the one or more memory pillar elements and the one or more encapsulation spacers to form an interlayer dielectric free of voids based on the geometry.
    Type: Application
    Filed: October 12, 2018
    Publication date: April 16, 2020
    Inventors: Michael Rizzolo, Theodorus E. Standaert, Isabel Cristina Chu, Chih-Chao Yang, Son Nguyen
  • Publication number: 20200119263
    Abstract: A low temperature deposited (400° C. or less) dielectric passivation layer is formed on physically exposed surfaces of a material stack including a multilayered magnetic tunnel junction (MTJ) pillar and a top electrode. A laser anneal is then performed to improve the physical and chemical properties of the low temperature deposited dielectric passivation layer, without negatively impacting the multilayered MTJ pillar.
    Type: Application
    Filed: July 30, 2019
    Publication date: April 16, 2020
    Inventors: Michael Rizzolo, Oscar van der Straten, Alexander Reznicek, Oleg Gluschenkov