Patents by Inventor Ala Moradian

Ala Moradian 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: 11768984
    Abstract: A method includes receiving measurement data from multiple sensors positioned along a delivery line that delivers a liquid as a gas to one of a gas panel or a processing chamber; simulating, using a computer-generated model, one or more process parameters associated with the delivery line and a plurality of heater jackets positioned around the delivery line; comparing the measurement data with values of the one or more process parameters; and determining, based on at least a threshold deviation between the measurement data and the values of the one or more process parameters, that a fault exists that is associated with maintaining temperature within the delivery line consistent with a gaseous state of the liquid.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: September 26, 2023
    Assignee: Applied Materials, Inc.
    Inventors: Ala Moradian, James Omer L'Heureux, Shuran Sheng, Rohit Mahakali, Karthik Ramanathan, Lin Zhang, Umesh Madhav Kelkar, Gopalakrishna B. Prabhu, Zheng Yuan, Jeonghoon Oh
  • Publication number: 20230290614
    Abstract: Embodiments of heat shield assemblies for a processing chamber are provided herein. In some embodiments, a heat shield assembly for a processing chamber includes: a first shield comprising a circular plate; a second shield coupled to the first shield and in a parallel configuration with the first shield, wherein the second shield has an outer diameter greater than an outer diameter of the first shield and the second shield includes a central opening having a diameter smaller than an outer diameter of the first shield; and a third shield coupled to and in a parallel configuration with the second shield, wherein an outer diameter of the third shield is greater than the diameter of the central opening of the second shield.
    Type: Application
    Filed: March 9, 2022
    Publication date: September 14, 2023
    Inventors: Dinkesh HUDERI SOMANNA, Ala MORADIAN, Colin John DICKINSON, Manjunath SUBBANNA
  • Patent number: 11752035
    Abstract: A phacoemulsification transducer assembly includes a reflector and a driver connected to the reflector. The driver has a known driver vibration frequency range. A horn is connected to the driver opposite the reflector. A needle is connected to the horn opposite the driver. The needle has a known free shaft length. To maximize a desired stroke length of the needle for a minimal amount of power applied to the driver, a material forming the needle is chosen such that a speed of sound through the material results in a quarter-wavelength distance at the driver vibration frequency range substantially equal to the needle free shaft length.
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: September 12, 2023
    Assignee: BAUSCH & LOMB INCORPORATED
    Inventors: Ala Moradian, Brian D. McCary, Toh Seng Goh, Matthew J. Fitzgerald
  • Patent number: 11733081
    Abstract: Aspects generally relate to methods, systems, and apparatus for conducting a calibration operation for a plurality of mass flow controllers (MFCs) of a substrate processing system. In one aspect, a corrected flow curve is created for a range of target flow rates across a plurality of setpoints. In one implementation, a method of conducting a calibration operation for a plurality of mass flow controllers (MFCs) of a substrate processing system includes prioritizing the plurality of MFCs for the calibration operation. The prioritizing includes determining an operation time for each MFC of the plurality of MFCs, and ranking the plurality of MFCs in a rank list according to the operation time for each MFC. The method includes conducting the calibration operation for the plurality of MFCs according to the rank list and during an idle time for the substrate processing system.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: August 22, 2023
    Assignee: Applied Materials, Inc.
    Inventors: Bindusagar Marath Sankarathodi, Zhiyuan Ye, Jyothi Rajeevan, Ala Moradian, Zuoming Zhu, Errol Antonio C. Sanchez, Patricia M. Liu
  • Publication number: 20230230859
    Abstract: A batch processing chamber and a process kit for use therein are provided. The process kit includes an outer liner having an upper outer liner and a lower outer liner, an inner liner, and a top plate and a bottom plate attached to an inner surface of the inner liner. The top plate and the bottom plate form an enclosure together with the inner liner, and a cassette is disposed within the enclosure. The cassette including shelves configured to retain a plurality of substrates thereon. The inner liner has inlet openings disposed on an injection side of the inner liner and configured to be in fluid communication with a gas injection assembly of a processing chamber, and outlet openings disposed on an exhaust side of the inner liner and configured to be in fluid communication with a gas exhaust assembly of the processing chamber. The inner surfaces of the enclosure comprise material configured to cause black-body radiation within the enclosure.
    Type: Application
    Filed: July 12, 2021
    Publication date: July 20, 2023
    Inventors: Adel George TANNOUS, Schubert S. CHU, Shu-Kwan LAU, Kartik Bhupendra SHAH, Zuoming ZHU, Ala MORADIAN, Surajit KUMAR, Srinivasa RANGAPPA, Chia Cheng CHIN, Vishwas Kumar PANDEY
  • Publication number: 20230212742
    Abstract: Embodiments herein provide for a method of processing a semiconductor substrate. The method described herein may include receiving a first input corresponding to a first geometric hardware configuration of a process chamber, receiving a second input corresponding to a first process recipe of the process chamber, determining, based on the first input and the second input, a first purge gas flow rate for the process chamber, measuring a deposition characteristic of the process chamber via a first sensor, determining, based on the first input, the second input, and the measured deposition characteristic, a second purge gas flow rate, the second purge gas flow rate different from the first purge gas flow rate, and flowing a purge gas at the second purge gas flow rate during a deposition process.
    Type: Application
    Filed: January 4, 2022
    Publication date: July 6, 2023
    Inventors: Ala MORADIAN, Vishwas Kumar PANDEY, Lori D. WASHINGTON, Miao-Chun CHEN
  • Publication number: 20230185268
    Abstract: Technologies directed to an eco-efficiency monitoring and exploration platform for semiconductor manufacturing. One method includes receiving, by a processing device, first data indicating an update to a substrate fabrication system having a first configuration of manufacturing equipment and operating to one or more process procedures. The method further includes determining, by the processing device, using the first data with a digital replica, environmental resource data. The digital replica includes a digital reproduction of the substrate fabrication system. The environmental resource usage data indicates an environment resource consumption that corresponds to performing the one or more process procedures by the substrate fabrication system incorporating the update. The method further includes providing, by the processing device, the environmental resource usage data for display on a graphical user interface (GUI).
    Type: Application
    Filed: December 10, 2021
    Publication date: June 15, 2023
    Inventors: Ala Moradian, Umesh Madhav Kelkar, Elizabeth Neville, Orlando Trejo, Sergey Meirovich, Kartik B. Shah, Shreyas Suresh Kher
  • Publication number: 20230167581
    Abstract: A process kit for use in a processing chamber includes an outer liner, an inner liner configured to be in fluid communication with a gas injection assembly and a gas exhaust assembly of a processing chamber, a first ring reflector disposed between the outer liner and the inner liner, a top plate and a bottom plate attached to an inner surface of the inner liner, the top plate and the bottom plate forming an enclosure together with the inner liner, a cassette disposed within the enclosure, the cassette comprising a plurality of shelves configured to retain a plurality of substrates thereon, and an edge temperature correcting element disposed between the inner liner and the first ring reflector.
    Type: Application
    Filed: July 16, 2021
    Publication date: June 1, 2023
    Inventors: Kartik Bhupendra SHAH, Schubert S. CHU, Adel George TANNOUS, Ala MORADIAN, Nyi Oo MYO, Surajit KUMAR, Zuoming ZHU, Brian Hayes BURROWS, Vishwas Kumar PANDEY, Shu-Kwan LAU, Srinivasa RANGAPPA
  • Publication number: 20230128611
    Abstract: An adapter for a deposition chamber includes an adapter body extending longitudinally about a central axis between an upper side and lower side opposite the upper side. The adapter body has a central opening about the central axis. The adapter body has a radially outer portion having a connection surface on the lower side and a radially inner portion having a coolant channel and a stepped surface on the lower side. At least a portion of the coolant channel is spaced radially inwardly from a radially inner end of the connection surface. At least the portion of the coolant channel is disposed longitudinally below the connection surface between the connection surface and the stepped surface.
    Type: Application
    Filed: October 22, 2021
    Publication date: April 27, 2023
    Inventors: Vishwas Kumar PANDEY, Colin John DICKINSON, Dinkesh HUDERI SOMANNA, Ala MORADIAN, Kartik Bhupendra SHAH
  • Publication number: 20220380932
    Abstract: A method and apparatus for processing semiconductor substrates is described herein. The apparatus includes one or more growth monitors disposed within an exhaust system of a deposition chamber. The growth monitors are quartz crystal film thickness monitors and are configured to measure the film thickness grown on the growth monitors while a substrate is being processed within the deposition chamber. The growth monitors are connected to a controller, which adjusts the heating apparatus and gas flow apparatus settings during the processing operations. Measurements from the growth monitors as well as other sensors within the deposition chamber are used to adjust processing chamber models of the deposition chamber as substrates are processed therein.
    Type: Application
    Filed: April 8, 2022
    Publication date: December 1, 2022
    Inventors: Zhepeng CONG, Zhiyuan YE, Avinash ISHWAR SHERVEGAR, Enle CHOO, Ala MORADIAN
  • Publication number: 20220375800
    Abstract: Embodiments disclosed herein generally relate to in situ monitoring of film growth in processing chambers. In some examples, a sensor assembly for a processing chamber includes a sensor tube including silicon carbide and having an optical path therein and a sensor window including crystalline silicon carbide and having a proximal side coupled to a distal end of the sensor tube. The sensor window covers the optical path, and a distal side of the sensor window facing away from the proximal side is perpendicular to a center axis of the optical path.
    Type: Application
    Filed: May 16, 2022
    Publication date: November 24, 2022
    Inventors: Zhepeng CONG, Tao SHENG, Xinning LUAN, Enle CHOO, Ala MORADIAN
  • Publication number: 20220364229
    Abstract: Embodiments described herein include processes and apparatuses relate to epitaxial deposition. A method for epitaxially depositing a material is provided and includes positioning a substrate on a substrate support surface of a susceptor within a process volume of a chamber body, where the process volume contains upper and lower chamber regions. The method includes flowing a process gas containing one or more chemical precursors from an upper gas inlet on a first side of the chamber body, across the substrate, and to an upper gas outlet on a second side of the chamber body, flowing a purge gas from a lower gas inlet on the first side of the chamber body, across the lower surface of the susceptor, and to a lower gas outlet on the second side of the chamber body, and maintaining a pressure of the lower chamber region greater than a pressure of the upper chamber region.
    Type: Application
    Filed: May 11, 2021
    Publication date: November 17, 2022
    Inventors: Tetsuya ISHIKAWA, Swaminathan T. SRINIVASAN, Matthias BAUER, Manjunath SUBBANNA, Ala MORADIAN, Kartik Bhupendra SHAH, Errol Antonio C SANCHEZ, Michael R. RICE, Peter REIMER, Marc SHULL
  • Publication number: 20220364231
    Abstract: The present disclosure generally relates to gas inject apparatus for a process chamber for processing of semiconductor substrates. The gas inject apparatus include one or more gas injectors which are configured to be coupled to the process chamber. Each of the gas injectors are configured to receive a process gas and distribute the process gas across one or more gas outlets. The gas injectors include a plurality of pathways, a fin array, and a baffle array. The gas injectors are individually heated. A gas mixture assembly is also utilized to control the concentration of process gases flown into a process volume from each of the gas injectors. The gas mixture assembly enables the concentration as well as the flow rate of the process gases to be controlled.
    Type: Application
    Filed: May 11, 2021
    Publication date: November 17, 2022
    Inventors: Tetsuya ISHIKAWA, Swaminathan T. SRINIVASAN, Matthias BAUER, Ala MORADIAN, Manjunath SUBBANNA, Kartik Bhupendra SHAH, Errol Antonio C. SANCHEZ, Sohrab ZOKAEI, Michael R. RICE, Peter REIMER
  • Publication number: 20220364261
    Abstract: The present disclosure generally relates to a process chamber for processing of semiconductor substrates. The process chamber includes an upper lamp assembly, a lower lamp assembly, a substrate support, an upper window disposed between the substrate support and the upper lamp assembly, a lower window disposed between the lower lamp assembly and the substrate support, an inject ring, and a base ring. Each of the upper lamp assembly and the lower lamp assembly include vertically oriented lamp apertures for the placement of heating lamps therein. The inject ring includes gas injectors disposed therethrough and the base ring includes a substrate transfer passage, a lower chamber exhaust passage, and one or more upper chamber exhaust passages. The gas injectors are disposed over the substrate transfer passage and across from the lower chamber exhaust passage and the one or more upper chamber exhaust passages.
    Type: Application
    Filed: May 11, 2021
    Publication date: November 17, 2022
    Inventors: Tetsuya ISHIKAWA, Swaminathan T. SRINIVASAN, Kartik Bhupendra SHAH, Ala MORADIAN, Manjunath SUBBANNA, Matthias BAUER, Peter REIMER, Michael R. RICE
  • Publication number: 20220367216
    Abstract: The present disclosure generally relates to an epitaxial chamber for processing of semiconductor substrates. In one example, the epitaxial chamber has a chamber body assembly. The chamber body assembly includes a lower window and an upper window, wherein chamber body assembly, the lower window and the upper window enclose an internal volume. A susceptor assembly is disposed in the internal volume. The epitaxial chamber also has a plurality of temperature control elements. The plurality of temperature control elements include one or more of an upper lamp module, a lower lamp module, an upper heater, a lower heater, or a heated gas passage.
    Type: Application
    Filed: May 11, 2021
    Publication date: November 17, 2022
    Inventors: Tetsuya ISHIKAWA, Swaminathan T. SRINIVASAN, Matthias BAUER, Ala MORADIAN, Manjunath SUBBANNA, Kartik Bhupendra SHAH, Kostiantyn ACHKASOV, Errol Antonio C. SANCHEZ, Michael R. RICE, Marc SHULL, Ji-Dih HU
  • Publication number: 20220334569
    Abstract: A method including receiving, by a processing device, a first selection of at least one of a first fabrication process or first manufacturing equipment to perform manufacturing operations of the first fabrication process. The method can further include inputting the first selection into a digital replica of the first manufacturing equipment wherein the digital replica outputs physical conditions of the first fabrication process. The method may further include determining environmental resource usage data indicative of a first environmental resource consumption of the first fabrication process run on the first manufacturing equipment based on the physical conditions of the first fabrication process. The processing device may further determine a modification to the first fabrication process that reduces the environmental resource consumption of the first fabrication process run on the first manufacturing equipment.
    Type: Application
    Filed: April 14, 2021
    Publication date: October 20, 2022
    Inventors: Ala Moradian, Elizabeth Neville, Umesh Madhav Kelkar, Mark R. Denome, Prashanth Kothnur, Karthik Ramanathan, Kartik Shah, Orlando Trejo, Sergey Meirovich
  • Publication number: 20220326061
    Abstract: Aspects generally relate to methods, systems, and apparatus for conducting a calibration operation for a plurality of mass flow controllers (MFCs) of a substrate processing system. In one aspect, a corrected flow curve is created for a range of target flow rates across a plurality of setpoints. In one implementation, a method of conducting a calibration operation for a plurality of mass flow controllers (MFCs) of a substrate processing system includes prioritizing the plurality of MFCs for the calibration operation. The prioritizing includes determining an operation time for each MFC of the plurality of MFCs, and ranking the plurality of MFCs in a rank list according to the operation time for each MFC. The method includes conducting the calibration operation for the plurality of MFCs according to the rank list and during an idle time for the substrate processing system.
    Type: Application
    Filed: April 13, 2021
    Publication date: October 13, 2022
    Inventors: Bindusagar MARATH SANKARATHODI, Zhiyuan YE, Jyothi RAJEEVAN, Ala MORADIAN, Zuoming ZHU, Errol Antonio C. SANCHEZ, Patricia M. LIU
  • Publication number: 20220322492
    Abstract: A process chamber includes a chamber body having a ceiling disposed above a floor with a chassis and an injector ring disposed therebetween. Upper and lower clamp rings secure the upper and floors, respectively, in place. An upper heating module is coupled to the upper clamp ring above the ceiling. A lower heating module is coupled to the lower clamp ring below the floor.
    Type: Application
    Filed: April 6, 2021
    Publication date: October 6, 2022
    Inventors: Shu-Kwan LAU, Brian Hayes BURROWS, Zhiyuan YE, Richard O. COLLINS, Enle CHOO, Danny D. WANG, Shainish NELLIKKA, Toshiyuki NAKAGAWA, Abhishek DUBE, Ala MORADIAN, Kartik Bhupendra SHAH
  • Publication number: 20220283029
    Abstract: One or more embodiments herein relate to methods for detection using optical emission spectroscopy. In these embodiments, an optical signal is delivered from the process chamber to an optical emission spectrometer (OES). The OES identifies emission peaks of photons, which corresponds to the optical intensity of radiation from the photons, to determine the concentrations of each of the precursor gases and reaction products. The OES sends input signals of the data results to a controller. The controller can adjust process variables within the process chamber in real time during deposition based on the comparison. In other embodiments, the controller can automatically trigger a process chamber clean based on a comparison of input signals of process chamber residues received before the deposition process and input signals of process chamber residues received after the deposition process.
    Type: Application
    Filed: July 8, 2020
    Publication date: September 8, 2022
    Inventors: Zuoming ZHU, Martin A. HILKENE, Avinash SHERVEGAR, Surendra Singh SRIVASTAVA, Ala MORADIAN, Shu-Kwan LAU, Zhiyuan YE, Enle CHOO, Flora Fong-Song CHANG, Bindusugar MARATH SANKARATHODI, Patricia M. LIU, Errol Antonio C. SANCHEZ, Jenny LIN, Nyi O. MYO, Schubert S. CHU
  • Publication number: 20220254634
    Abstract: A method and apparatus for providing uniform heating of substrates disposed within a processing chamber is provided. The apparatus includes one or more heating coils disposed in the processing chamber. The one or more heating coils are electrically coupled to a power source using heater rods. The heater rods are coupled to a socket on a distal end opposite the connection to the heating coils. The socket includes a feedthrough and a cooling plate configured to remove contaminants, such as methane, from the area surrounding the heater rod.
    Type: Application
    Filed: January 20, 2022
    Publication date: August 11, 2022
    Inventors: Brian Hayes BURROWS, Ala MORADIAN, Zuoming ZHU, Chia Cheng CHIN