Patents by Inventor Radhakrishna Kotti

Radhakrishna Kotti 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: 20240355685
    Abstract: Methods, systems, and devices for electron beam probing techniques and related structures are described to enable inline testing of memory device structures. Conductive loops may be formed, some of which may be grounded and others of which may be electrically floating in accordance with a predetermined pattern. The loops may be scanned with an electron beam and image analysis techniques may be used to generate an optical pattern. The generated optical pattern may be compared to an expected optical pattern, which may be based on the predetermined pattern of grounded and floating loops. An electrical defect may be determined based on any difference between the generated optical pattern and the expected optical pattern. For example, if a second loop appears as having a brightness corresponding to a grounded loop, this may indicate that an unintended short exists. Fabrication techniques may be adjusted for subsequent devices to correct identified defects.
    Type: Application
    Filed: April 30, 2024
    Publication date: October 24, 2024
    Inventors: Amitava Majumdar, Radhakrishna Kotti, Mallesh Rajashekharaiah
  • Publication number: 20240347107
    Abstract: Methods, systems, and devices supporting a socket design for a memory device are described. A die may include one or more memory arrays, which each may include any number of word lines and any number of bit lines. The word lines and the bit lines may be oriented in different directions, and memory cells may be located at the intersections of word lines and bit lines. Sockets may couple the word lines and bit lines to associated drivers, and the sockets may be located such that memory cells farther from a corresponding word line socket are nearer a corresponding bit line socket, and vice versa. For example, sockets may be disposed in rows or regions that are parallel to one another, and which may be non-orthogonal to the corresponding word lines and bit lines.
    Type: Application
    Filed: March 26, 2024
    Publication date: October 17, 2024
    Inventors: Amitava Majumdar, Radhakrishna Kotti, Rajasekhar Venigalla
  • Publication number: 20240282702
    Abstract: Some embodiments include an integrated assembly having a base which includes first circuitry. Memory decks are over the base. Each of the memory decks has a sense/access line coupled with the first circuitry. The memory decks and base are vertically spaced from one another by gaps. The gaps alternate in a vertical direction between first gaps and second gaps. Overlapping conductive paths extend from the sense/access lines to the first circuitry. The conductive paths include first conductive interconnects within the first gaps and second conductive interconnects within the second gaps. The first and second conductive interconnects are laterally offset relative to one another.
    Type: Application
    Filed: May 1, 2024
    Publication date: August 22, 2024
    Applicant: Micron Technology, Inc.
    Inventors: Raju Ahmed, Radhakrishna Kotti, David A. Kewley, Dave Pratt
  • Publication number: 20240258167
    Abstract: Methods of manufacturing semiconductor devices, and associated systems and devices, are disclosed herein. In some embodiments, a method of manufacturing a semiconductor device includes forming an opening in an electrically insulative material at least partially over a first electrically conductive feature and a second electrically conductive feature. The method can further include forming a ring of electrically conductive material around a sidewall of the insulative material defining the opening, wherein the ring of electrically conductive material includes (a) a first via portion over the first electrically conductive feature, (b) a second via portion over the second electrically conductive feature, and (c) connecting portions extending between the first and second via portions. Finally, the method can include removing the connecting portions of the ring of electrically conductive material to electrically isolate the first via portion from the second via portion.
    Type: Application
    Filed: April 12, 2024
    Publication date: August 1, 2024
    Inventors: Trupti D. Gawai, David S. Pratt, Ahmed M. Elsied, David A. Kewley, Dale W. Collins, Raju Ahmed, Chelsea M. Jordan, Radhakrishna Kotti
  • Patent number: 12014983
    Abstract: Some embodiments include an integrated assembly having a base which includes first circuitry. Memory decks are over the base. Each of the memory decks has a sense/access line coupled with the first circuitry. The memory decks and base are vertically spaced from one another by gaps. The gaps alternate in a vertical direction between first gaps and second gaps. Overlapping conductive paths extend from the sense/access lines to the first circuitry. The conductive paths include first conductive interconnects within the first gaps and second conductive interconnects within the second gaps. The first and second conductive interconnects are laterally offset relative to one another.
    Type: Grant
    Filed: September 16, 2022
    Date of Patent: June 18, 2024
    Assignee: Micron Technology, Inc.
    Inventors: Raju Ahmed, Radhakrishna Kotti, David A. Kewley, Dave Pratt
  • Patent number: 11996336
    Abstract: Methods, systems, and devices for electron beam probing techniques and related structures are described to enable inline testing of memory device structures. Conductive loops may be formed, some of which may be grounded and others of which may be electrically floating in accordance with a predetermined pattern. The loops may be scanned with an electron beam and image analysis techniques may be used to generate an optical pattern. The generated optical pattern may be compared to an expected optical pattern, which may be based on the predetermined pattern of grounded and floating loops. An electrical defect may be determined based on any difference between the generated optical pattern and the expected optical pattern. For example, if a second loop appears as having a brightness corresponding to a grounded loop, this may indicate that an unintended short exists. Fabrication techniques may be adjusted for subsequent devices to correct identified defects.
    Type: Grant
    Filed: April 6, 2022
    Date of Patent: May 28, 2024
    Assignee: Micron Technology, Inc.
    Inventors: Amitava Majumdar, Radhakrishna Kotti, Mallesh Rajashekharaiah
  • Patent number: 11990370
    Abstract: Methods of manufacturing semiconductor devices, and associated systems and devices, are disclosed herein. In some embodiments, a method of manufacturing a semiconductor device includes forming an opening in an electrically insulative material at least partially over a first electrically conductive feature and a second electrically conductive feature. The method can further include forming a ring of electrically conductive material around a sidewall of the insulative material defining the opening, wherein the ring of electrically conductive material includes (a) a first via portion over the first electrically conductive feature, (b) a second via portion over the second electrically conductive feature, and (c) connecting portions extending between the first and second via portions. Finally, the method can include removing the connecting portions of the ring of electrically conductive material to electrically isolate the first via portion from the second via portion.
    Type: Grant
    Filed: October 21, 2022
    Date of Patent: May 21, 2024
    Assignee: Micron Technology, Inc.
    Inventors: Trupti D. Gawai, David S. Pratt, Ahmed M. Elsied, David A. Kewley, Dale W. Collins, Raju Ahmed, Chelsea M. Jordan, Radhakrishna Kotti
  • Patent number: 11961556
    Abstract: Methods, systems, and devices supporting a socket design for a memory device are described. A die may include one or more memory arrays, which each may include any number of word lines and any number of bit lines. The word lines and the bit lines may be oriented in different directions, and memory cells may be located at the intersections of word lines and bit lines. Sockets may couple the word lines and bit lines to associated drivers, and the sockets may be located such that memory cells farther from a corresponding word line socket are nearer a corresponding bit line socket, and vice versa. For example, sockets may be disposed in rows or regions that are parallel to one another, and which may be non-orthogonal to the corresponding word lines and bit lines.
    Type: Grant
    Filed: January 4, 2022
    Date of Patent: April 16, 2024
    Assignee: Micron Technology, Inc.
    Inventors: Amitava Majumdar, Radhakrishna Kotti, Rajasekhar Venigalla
  • Publication number: 20230298951
    Abstract: Test structures for wafers are disclosed. A device may include a silicon wafer including a number of die and a scribe area between two die of the number of die. The scribe area may include one or more test structures. The test structures may include a p-doped region and an n-doped region adjacent to the p-doped region. The test structures may also include a first contact electrically coupled to the p-doped region and a second contact electrically coupled to the n-doped region. The second contact may be proximate to the first contact. Associated devices, systems, and methods are also disclosed.
    Type: Application
    Filed: March 16, 2022
    Publication date: September 21, 2023
    Inventors: Chase M. Hunter, Marlon W. Hug, Stephen W. Russell, Rajesh Kamana, Amitava Majumdar, Radhakrishna Kotti, Ahmed N. Noemaun, Tejaswi K. Indukuri
  • Publication number: 20230290684
    Abstract: Structures and methods for separating semiconductor wafers into individual dies are disclosed. A semiconductor wafer or panel can include a crack assist structure in a scribe junction. The crack assist structure can include a plurality of vertical walls extending at least partially through a thickness of the wafer. In some embodiments, the plurality of vertical walls can be coupled to a weak interface. The weak interface can guide cracks that form during the dicing process in a direction along the walls, away from active circuitry. After dicing, the resulting semiconductor devices can include a plurality of vertical walls extending at least partially through a thickness of the semiconductor device. Each of the plurality of vertical walls can include at least a portion extending substantially parallel to a sidewall of the semiconductor device.
    Type: Application
    Filed: March 9, 2022
    Publication date: September 14, 2023
    Inventors: Wei Chang Wong, Radhakrishna Kotti, Raj K. Bansal, Youngik Kwon, Po Chih Yang, Venkateswarlu Bhavanasi
  • Patent number: 11636911
    Abstract: Methods, systems, and devices for leakage source detection are described. In some cases, a testing device may scan a first set of access lines of a memory die that have a first length and a second set of access lines of the memory die that have a second length different than the first length. The testing device may determine a first error rate associated with the first set of access lines and a second error rate associated with the second set of access lines. The testing device may categorize a performance of the memory die based on the first and second error rates. In some cases, the testing device may determine a third error rate associated with a type of error based on the first and second error rates and may categorize the performance of the memory die based on the third error rate.
    Type: Grant
    Filed: July 28, 2021
    Date of Patent: April 25, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Amitava Majumdar, Radhakrishna Kotti, Patrick Daniel White, Pavan Reddy K Aella, Rajesh Kamana
  • Publication number: 20230113573
    Abstract: Methods of manufacturing semiconductor devices, and associated systems and devices, are disclosed herein. In some embodiments, a method of manufacturing a semiconductor device includes forming an opening in an electrically insulative material at least partially over a first electrically conductive feature and a second electrically conductive feature. The method can further include forming a ring of electrically conductive material around a sidewall of the insulative material defining the opening, wherein the ring of electrically conductive material includes (a) a first via portion over the first electrically conductive feature, (b) a second via portion over the second electrically conductive feature, and (c) connecting portions extending between the first and second via portions. Finally, the method can include removing the connecting portions of the ring of electrically conductive material to electrically isolate the first via portion from the second via portion.
    Type: Application
    Filed: October 21, 2022
    Publication date: April 13, 2023
    Inventors: Trupti D. Gawai, David S. Pratt, Ahmed M. Elsied, David A. Kewley, Dale W. Collins, Raju Ahmed, Chelsea M. Jordan, Radhakrishna Kotti
  • Patent number: 11574842
    Abstract: Methods of manufacturing semiconductor devices, and associated systems and devices, are disclosed herein. In some embodiments, a method of manufacturing a semiconductor device includes forming an opening in an insulative material at least partially over an electrically conductive feature. The method can further include forming a ring of electrically non-conductive material extending at least partially about a sidewall of the insulative material that defines the opening. The method can further include removing a portion of the ring to form an opening over the electrically conductive feature, and then depositing an electrically conductive material into the opening in the ring to form a conductive via electrically coupled to the electrically conductive feature.
    Type: Grant
    Filed: April 14, 2021
    Date of Patent: February 7, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Trupti D. Gawai, David A. Kewley, Aaron M. Lowe, Radhakrishna Kotti, David S. Pratt
  • Publication number: 20230021072
    Abstract: Some embodiments include an integrated assembly having a base which includes first circuitry. Memory decks are over the base. Each of the memory decks has a sense/access line coupled with the first circuitry. The memory decks and base are vertically spaced from one another by gaps. The gaps alternate in a vertical direction between first gaps and second gaps. Overlapping conductive paths extend from the sense/access lines to the first circuitry. The conductive paths include first conductive interconnects within the first gaps and second conductive interconnects within the second gaps. The first and second conductive interconnects are laterally offset relative to one another.
    Type: Application
    Filed: September 16, 2022
    Publication date: January 19, 2023
    Applicant: Micron Technology, Inc.
    Inventors: Raju Ahmed, Radhakrishna Kotti, David A. Kewley, Dave Pratt
  • Patent number: 11515204
    Abstract: Methods of manufacturing semiconductor devices, and associated systems and devices, are disclosed herein. In some embodiments, a method of manufacturing a semiconductor device includes forming an opening in an electrically insulative material at least partially over a first electrically conductive feature and a second electrically conductive feature. The method can further include forming a ring of electrically conductive material around a sidewall of the insulative material defining the opening, wherein the ring of electrically conductive material includes (a) a first via portion over the first electrically conductive feature, (b) a second via portion over the second electrically conductive feature, and (c) connecting portions extending between the first and second via portions. Finally, the method can include removing the connecting portions of the ring of electrically conductive material to electrically isolate the first via portion from the second via portion.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: November 29, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Trupti D. Gawai, David S. Pratt, Ahmed M. Elsied, David A. Kewley, Dale W. Collins, Raju Ahmed, Chelsea M. Jordan, Radhakrishna Kotti
  • Patent number: 11482492
    Abstract: Some embodiments include an integrated assembly having a base which includes first circuitry. Memory decks are over the base. Each of the memory decks has a sense/access line coupled with the first circuitry. The memory decks and base are vertically spaced from one another by gaps. The gaps alternate in a vertical direction between first gaps and second gaps. Overlapping conductive paths extend from the sense/access lines to the first circuitry. The conductive paths include first conductive interconnects within the first gaps and second conductive interconnects within the second gaps. The first and second conductive interconnects are laterally offset relative to one another.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: October 25, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Raju Ahmed, Radhakrishna Kotti, David A. Kewley, Dave Pratt
  • Publication number: 20220336277
    Abstract: Methods of manufacturing semiconductor devices, and associated systems and devices, are disclosed herein. In some embodiments, a method of manufacturing a semiconductor device includes forming an opening in an insulative material at least partially over an electrically conductive feature. The method can further include forming a ring of electrically non-conductive material extending at least partially about a sidewall of the insulative material that defines the opening. The method can further include removing a portion of the ring to form an opening over the electrically conductive feature, and then depositing an electrically conductive material into the opening in the ring to form a conductive via electrically coupled to the electrically conductive feature.
    Type: Application
    Filed: April 14, 2021
    Publication date: October 20, 2022
    Inventors: Trupti D. Gawai, David A. Kewley, Aaron M. Lowe, Radhakrishna Kotti, David S. Pratt
  • Publication number: 20220301946
    Abstract: Methods, systems, and devices for electron beam probing techniques and related structures are described to enable inline testing of memory device structures. Conductive loops may be formed, some of which may be grounded and others of which may be electrically floating in accordance with a predetermined pattern. The loops may be scanned with an electron beam and image analysis techniques may be used to generate an optical pattern. The generated optical pattern may be compared to an expected optical pattern, which may be based on the predetermined pattern of grounded and floating loops. An electrical defect may be determined based on any difference between the generated optical pattern and the expected optical pattern. For example, if a second loop appears as having a brightness corresponding to a grounded loop, this may indicate that an unintended short exists. Fabrication techniques may be adjusted for subsequent devices to correct identified defects.
    Type: Application
    Filed: April 6, 2022
    Publication date: September 22, 2022
    Inventors: Amitava Majumdar, Radhakrishna Kotti, Mallesh Rajashekharaiah
  • Publication number: 20220208606
    Abstract: Methods of manufacturing semiconductor devices, and associated systems and devices, are disclosed herein. In some embodiments, a method of manufacturing a semiconductor device includes forming an opening in an electrically insulative material at least partially over a first electrically conductive feature and a second electrically conductive feature. The method can further include forming a ring of electrically conductive material around a sidewall of the insulative material defining the opening, wherein the ring of electrically conductive material includes (a) a first via portion over the first electrically conductive feature, (b) a second via portion over the second electrically conductive feature, and (c) connecting portions extending between the first and second via portions. Finally, the method can include removing the connecting portions of the ring of electrically conductive material to electrically isolate the first via portion from the second via portion.
    Type: Application
    Filed: December 29, 2020
    Publication date: June 30, 2022
    Inventors: Trupti D. Gawai, David S. Pratt, Ahmed M. Elsied, David A. Kewley, Dale W. Collins, Raju Ahmed, Chelsea M. Jordan, Radhakrishna Kotti
  • Publication number: 20220208264
    Abstract: Methods, systems, and devices supporting a socket design for a memory device are described. A die may include one or more memory arrays, which each may include any number of word lines and any number of bit lines. The word lines and the bit lines may be oriented in different directions, and memory cells may be located at the intersections of word lines and bit lines. Sockets may couple the word lines and bit lines to associated drivers, and the sockets may be located such that memory cells farther from a corresponding word line socket are nearer a corresponding bit line socket, and vice versa. For example, sockets may be disposed in rows or regions that are parallel to one another, and which may be non-orthogonal to the corresponding word lines and bit lines.
    Type: Application
    Filed: January 4, 2022
    Publication date: June 30, 2022
    Inventors: Amitava Majumdar, Radhakrishna Kotti, Rajasekhar Venigalla