Patents by Inventor James Pak
James Pak 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).
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Patent number: 12029041Abstract: A semiconductor device and method of fabricating the same are disclosed. The method includes depositing a polysilicon gate layer over a gate dielectric formed over a surface of a substrate in a peripheral region, forming a dielectric layer over the polysilicon gate layer and depositing a height-enhancing (HE) film over the dielectric layer. The HE film, the dielectric layer, the polysilicon gate layer and the gate dielectric are then patterned for a high-voltage Field Effect Transistor (HVFET) gate to be formed in the peripheral region. A high energy implant is performed to form at least one lightly doped region in a source or drain region in the substrate adjacent to the HVFET gate. The HE film is then removed, and a low voltage (LV) logic FET formed on the substrate in the peripheral region. In one embodiment, the LV logic FET is a high-k metal-gate logic FET.Type: GrantFiled: June 26, 2023Date of Patent: July 2, 2024Assignee: INFINEON TECHNOLOGIES LLCInventors: Chun Chen, James Pak, Unsoon Kim, Inkuk Kang, Sung-Taeg Kang, Kuo Tung Chang
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Publication number: 20240206183Abstract: A semiconductor device and methods of fabrication the same are disclosed. In one embodiment, the semiconductor device may include a non-volatile memory (NVM) cell including a memory gate stack and a select gate stack separated by an inter-gate dielectric disposed in a memory region of a substrate, a low voltage field-effect transistor (LVFET) including a first high-K metal-gate (HKMG) stack disposed in a peripheral region of the substrate, and a high voltage field-effect transistor (HVFET) including a second HKMG stack disposed in the peripheral region, in which top surfaces of the memory gate stack and the select gate stack of the NVM cell, the LVFET, and the HVFET have an approximately same elevation from the substrate or are substantially co-planar. Other embodiments are also disclosed within.Type: ApplicationFiled: February 29, 2024Publication date: June 20, 2024Applicant: Cypress Semiconductor CorporationInventors: Chun CHEN, James PAK, Unsoon KIM, Inkuk KANG, Sung-Taeg KANG, Kuo Tung CHANG
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Publication number: 20240008279Abstract: A semiconductor device and method of fabricating the same are disclosed. The method includes depositing a polysilicon gate layer over a gate dielectric formed over a surface of a substrate in a peripheral region, forming a dielectric layer over the polysilicon gate layer and depositing a height-enhancing (HE) film over the dielectric layer. The HE film, the dielectric layer, the polysilicon gate layer and the gate dielectric are then patterned for a high-voltage Field Effect Transistor (HVFET) gate to be formed in the peripheral region. A high energy implant is performed to form at least one lightly doped region in a source or drain region in the substrate adjacent to the HVFET gate. The HE film is then removed, and a low voltage (LV) logic FET formed on the substrate in the peripheral region. In one embodiment, the LV logic FET is a high-k metal-gate logic FET.Type: ApplicationFiled: June 26, 2023Publication date: January 4, 2024Applicant: Cypress Semiconductor CorporationInventors: Chun Chen, James Pak, Unsoon KIM, Inkuk Kang, Sung-Taeg Kang, Kuo Tung Chang
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Patent number: 11690227Abstract: A semiconductor device and method of fabricating the same are disclosed. The method includes depositing a polysilicon gate layer over a gate dielectric formed over a surface of a substrate in a peripheral region, forming a dielectric layer over the polysilicon gate layer and depositing a height-enhancing (HE) film over the dielectric layer. The HE film, the dielectric layer, the polysilicon gate layer and the gate dielectric are then patterned for a high-voltage Field Effect Transistor (HVFET) gate to be formed in the peripheral region. A high energy implant is performed to form at least one lightly doped region in a source or drain region in the substrate adjacent to the HVFET gate. The HE film is then removed, and a low voltage (LV) logic FET formed on the substrate in the peripheral region. In one embodiment, the LV logic FET is a high-k metal-gate logic FET.Type: GrantFiled: May 18, 2021Date of Patent: June 27, 2023Assignee: CYPRESS SEMICONDUCTOR CORPORATIONInventors: Chun Chen, James Pak, Unsoon Kim, Inkuk Kang, Sung-Taeg Kang, Kuo Tung Chang
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Patent number: 11342429Abstract: A semiconductor device and method of making the same are disclosed. The semiconductor device includes a memory gate on a charge storage structure formed on a substrate, a select gate on a gate dielectric on the substrate proximal to the memory gate, and a dielectric structure between the memory gate and the select gate, and adjacent to sidewalls of the memory gate and the select gate, wherein the memory gate and the select gate are separated by a thickness of the dielectric structure. Generally, the dielectric structure comprises multiple dielectric layers including a first dielectric layer adjacent the sidewall of the memory gate, and a nitride dielectric layer adjacent to the first dielectric layer and between the memory gate and the select gate. Other embodiments are also disclosed.Type: GrantFiled: September 30, 2020Date of Patent: May 24, 2022Assignee: Cypress Semiconductor CorporationInventors: Shenqing Fang, Chun Chen, Unsoon Kim, Mark T. Ramsbey, Kuo Tung Chang, Sameer S. Haddad, James Pak
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Publication number: 20210296343Abstract: A semiconductor device and method of fabricating the same are disclosed. The method includes depositing a polysilicon gate layer over a gate dielectric formed over a surface of a substrate in a peripheral region, forming a dielectric layer over the polysilicon gate layer and depositing a height-enhancing (HE) film over the dielectric layer. The HE film, the dielectric layer, the polysilicon gate layer and the gate dielectric are then patterned for a high-voltage Field Effect Transistor (HVFET) gate to be formed in the peripheral region. A high energy implant is performed to form at least one lightly doped region in a source or drain region in the substrate adjacent to the HVFET gate. The HE film is then removed, and a low voltage (LV) logic FET formed on the substrate in the peripheral region. In one embodiment, the LV logic FET is a high-k metal-gate logic FET.Type: ApplicationFiled: May 18, 2021Publication date: September 23, 2021Applicant: Cypress Semiconductor CorporationInventors: Chun Chen, James Pak, Unsoon KIM, Inkuk Kang, Sung-Taeg Kang, Kuo Tung Chang
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Publication number: 20210134811Abstract: Systems and methods of forming such include method, forming a memory gate (MG) stack in a first region, forming a sacrificial polysilicon gate on a high-k dielectric in a second region, wherein the first and second regions are disposed in a single substrate. Then a select gate (SG) may be formed adjacent to the MG stack in the first region of the semiconductor substrate. The sacrificial polysilicon gate may be replaced with a metal gate to form a logic field effect transistor (FET) in the second region. The surfaces of the substrate in the first region and the second region are substantially co-planar.Type: ApplicationFiled: November 20, 2020Publication date: May 6, 2021Applicant: Cypress Semiconductor CorporationInventors: Chun Chen, James Pak, Unsoon Kim, Inkuk Kang, Sung-Taeg Kang, Kuo Tung Chang
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Publication number: 20210091198Abstract: A semiconductor device and method of making the same are disclosed. The semiconductor device includes a memory gate on a charge storage structure formed on a substrate, a select gate on a gate dielectric on the substrate proximal to the memory gate, and a dielectric structure between the memory gate and the select gate, and adjacent to sidewalls of the memory gate and the select gate, wherein the memory gate and the select gate are separated by a thickness of the dielectric structure. Generally, the dielectric structure comprises multiple dielectric layers including a first dielectric layer adjacent the sidewall of the memory gate, and a nitride dielectric layer adjacent to the first dielectric layer and between the memory gate and the select gate. Other embodiments are also disclosed.Type: ApplicationFiled: September 30, 2020Publication date: March 25, 2021Applicant: Cypress Semiconductor CorporationInventors: Shenqing Fang, Chun Chen, Unsoon KIM, Mark T. Ramsbey, Kuo Tung Chang, Sameer S. HADDAD, James Pak
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Patent number: 10957703Abstract: An example embodiment comprises a method for fabrication of a non-volatile memory (NVM) device. An isolation structure is formed in a substrate between first and second locations for first and second NVM cells. A common charge trapping layer is formed as a continuous structure over the substrate, where a first portion of the charge trapping layer is disposed directly over the isolation structure and second portions of the charge trapping layer are disposed directly over the first and second substrate locations. Nitrogen doping of the first portion of the charge trapping layer is performed, where after the nitrogen doping is performed the first portion of the charge trapping layer includes a higher nitrogen concentration than the second portions. The first and second NVM cells are then formed over the first and second substrate locations, where the first and second NVM cells include the second portions of the charge trapping layer.Type: GrantFiled: August 6, 2018Date of Patent: March 23, 2021Assignee: Cypress Semiconductor CorporationInventors: Pawan Kishore Singh, Shivananda Shetty, James Pak
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Patent number: 10872898Abstract: Systems and methods of forming such include method, forming a memory gate (MG) stack in a first region, forming a sacrificial polysilicon gate on a high-k dielectric in a second region, wherein the first and second regions are disposed in a single substrate. Then a select gate (SG) may be formed adjacent to the MG stack in the first region of the semiconductor substrate. The sacrificial polysilicon gate may be replaced with a metal gate to form a logic field effect transistor (FET) in the second region. The surfaces of the substrate in the first region and the second region are substantially co-planar.Type: GrantFiled: December 20, 2017Date of Patent: December 22, 2020Assignee: Cypress Semiconductor CorporationInventors: Chun Chen, James Pak, Unsoon Kim, Inkuk Kang, Sung-Taeg Kang, Kuo Tung Chang
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Patent number: 10818761Abstract: A semiconductor device and method of making the same are disclosed. The semiconductor device includes a memory gate on a charge storage structure formed on a substrate, a select gate on a gate dielectric on the substrate proximal to the memory gate, and a dielectric structure between the memory gate and the select gate, and adjacent to sidewalls of the memory gate and the select gate, wherein the memory gate and the select gate are separated by a thickness of the dielectric structure. Generally, the dielectric structure comprises multiple dielectric layers including a first dielectric layer adjacent the sidewall of the memory gate, and a nitride dielectric layer adjacent to the first dielectric layer and between the memory gate and the select gate. Other embodiments are also disclosed.Type: GrantFiled: July 19, 2019Date of Patent: October 27, 2020Assignee: Cypress Semiconductor CorporationInventors: Shenqing Fang, Chun Chen, Unsoon Kim, Mark Ramsbey, Kuo Tung Chang, Sameer Haddad, James Pak
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Patent number: 10679712Abstract: A non-volatile memory device and methods for operating the same are provided. The memory device may have multiple complementary memory cells. The method of blank check includes detecting a state value of each of the true and complementary transistors, generating an upper state value, Wherein a first predetermined amount of the true and complementary transistors have greater state values than the upper state value, generating a lower state value, wherein a second predetermined amount of the true and complementary transistors have less state values than the lower state value, generating a state value range based on a difference between the upper state value and the lower state value, and comparing the state value range to a threshold value to determine whether the plurality of complementary memory cells is in a blank state or a non-blank state. Other embodiments are also disclosed herein.Type: GrantFiled: December 4, 2018Date of Patent: June 9, 2020Assignee: Cypress Semiconductor CorporationInventors: James Pak, Shivananda Shetty, Yoram Betser, Amichai Givant, Jonas Neo, Pawan Singh, Stefano Amato, Cindy Sun, Amir Rochman
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Publication number: 20190386109Abstract: A semiconductor device and method of making the same are disclosed. The semiconductor device includes a memory gate on a charge storage structure formed on a substrate, a select gate on a gate dielectric on the substrate proximal to the memory gate, and a dielectric structure between the memory gate and the select gate, and adjacent to sidewalls of the memory gate and the select gate, wherein the memory gate and the select gate are separated by a thickness of the dielectric structure. Generally, the dielectric structure comprises multiple dielectric layers including a first dielectric layer adjacent the sidewall of the memory gate, and a nitride dielectric layer adjacent to the first dielectric layer and between the memory gate and the select gate. Other embodiments are also disclosed.Type: ApplicationFiled: July 19, 2019Publication date: December 19, 2019Applicant: Cypress Semiconductor CorporationInventors: Shenqing Fang, Chun Chen, Unsoon KIM, Mark Ramsbey, Kuo Tung Chang, Sameer HADDAD, James Pak
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Patent number: 10497710Abstract: A semiconductor device and method of making the same are disclosed. The semiconductor device includes a metal-gate logic transistor formed in a first region of a substrate, and a non-volatile memory (NVM) cell including a select gate and a memory gate formed in a first recess in a second region of the same substrate, wherein the recess is recessed relative to a first surface of the substrate. The metal-gate logic transistor includes a planarized surface above and substantially parallel to the first surface, and top surfaces of the select gate and memory gate are approximately at or below an elevation of the planarized surface of the metal-gate. Generally, at least one of the top surfaces of the select gate or the memory gate includes a silicide formed thereon. Other embodiments are also disclosed.Type: GrantFiled: October 12, 2017Date of Patent: December 3, 2019Assignee: Cypress Semiconductor CorporationInventors: Sung-Taeg Kang, James Pak, Unsoon Kim, Inkuk Kang, Chun Chen, Kuo-Tung Chang
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Publication number: 20190304990Abstract: A semiconductor device and method of fabricating the same are disclosed. The method includes depositing a polysilicon gate layer over a gate dielectric formed over a surface of a substrate in a peripheral region, forming a dielectric layer over the polysilicon gate layer and depositing a height-enhancing (HE) film over the dielectric layer. The HE film, the dielectric layer, the polysilicon gate layer and the gate dielectric are then patterned for a high-voltage Field Effect Transistor (HVFET) gate to be formed in the peripheral region. A high energy implant is performed to form at least one lightly doped region in a source or drain region in the substrate adjacent to the HVFET gate. The HE film is then removed, and a low voltage (LV) logic FET formed on the substrate in the peripheral region. In one embodiment, the LV logic FET is a high-k metal-gate logic FET.Type: ApplicationFiled: March 4, 2019Publication date: October 3, 2019Applicant: Cypress Semiconductor CorporationInventors: Chun Chen, James Pak, Unsoon KIM, Inkuk Kang, Sung-Taeg Kang, Kuo Tung Chang
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Patent number: 10403731Abstract: A semiconductor device and method of making the same are disclosed. The semiconductor device includes a memory gate on a charge storage structure formed on a substrate, a select gate on a gate dielectric on the substrate proximal to the memory gate, and a dielectric structure between the memory gate and the select gate, and adjacent to sidewalls of the memory gate and the select gate, wherein the memory gate and the select gate are separated by a thickness of the dielectric structure. Generally, the dielectric structure comprises multiple dielectric layers including a first dielectric layer adjacent the sidewall of the memory gate, and a nitride dielectric layer adjacent to the first dielectric layer and between the memory gate and the select gate. Other embodiments are also disclosed.Type: GrantFiled: June 15, 2018Date of Patent: September 3, 2019Assignee: Cypress Semiconductor CorporationInventors: Shenqing Fang, Chun Chen, Unsoon Kim, Mark Ramsbey, Kuo Tung Chang, Sameer Haddad, James Pak
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Publication number: 20190198125Abstract: A non-volatile memory device and methods for operating the same are provided. The memory device may have multiple complementary memory cells. The method of blank check includes detecting a state value of each of the true and complementary transistors, generating an upper state value, Wherein a first predetermined amount of the true and complementary transistors have greater state values than the upper state value, generating a lower state value, wherein a second predetermined amount of the true and complementary transistors have less state values than the lower state value, generating a state value range based on a difference between the upper state value and the lower state value, and comparing the state value range to a threshold value to determine whether the plurality of complementary memory cells is in a blank state or a non-blank state. Other embodiments are also disclosed herein.Type: ApplicationFiled: December 4, 2018Publication date: June 27, 2019Applicant: Cypress Semiconductor CorporationInventors: James Pak, Shivananda Shetty, Yoram Betser, Amichai Givant, Jonas Neo, Pawan Singh, Stefano Amato, Cindy Sun, Amir Rochman
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Patent number: 10242996Abstract: A semiconductor device and method of fabricating the same are disclosed. The method includes depositing a polysilicon gate layer over a gate dielectric formed over a surface of a substrate in a peripheral region, forming a dielectric layer over the polysilicon gate layer and depositing a height-enhancing (HE) film over the dielectric layer. The HE film, the dielectric layer, the polysilicon gate layer and the gate dielectric are then patterned for a high-voltage Field Effect Transistor (HVFET) gate to be formed in the peripheral region. A high energy implant is performed to form at least one lightly doped region in a source or drain region in the substrate adjacent to the HVFET gate. The HE film is then removed, and a low voltage (LV) logic FET formed on the substrate in the peripheral region. In one embodiment, the LV logic FET is a high-k metal-gate logic FET.Type: GrantFiled: December 20, 2017Date of Patent: March 26, 2019Assignee: Cypress Semiconductor CorporationInventors: Chun Chen, James Pak, Unsoon Kim, Inkuk Kang, Sung-Taeg Kang, Kuo Tung Chang
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Publication number: 20190074286Abstract: An example embodiment comprises a method for fabrication of a non-volatile memory (NVM) device. An isolation structure is formed in a substrate between first and second locations for first and second NVM cells. A common charge trapping layer is formed as a continuous structure over the substrate, where a first portion of the charge trapping layer is disposed directly over the isolation structure and second portions of the charge trapping layer are disposed directly over the first and second substrate locations. Nitrogen doping of the first portion of the charge trapping layer is performed, where after the nitrogen doping is performed the first portion of the charge trapping layer includes a higher nitrogen concentration than the second portions. The first and second NVM cells are then formed over the first and second substrate locations, where the first and second NVM cells include the second portions of the charge trapping layer.Type: ApplicationFiled: August 6, 2018Publication date: March 7, 2019Applicant: Cypress Semiconductor CorporationInventors: Pawan Kishore Singh, Shivananda Shetty, James Pak
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Publication number: 20190027484Abstract: Systems and methods of forming such include method, forming a memory gate (MG) stack in a first region, forming a sacrificial polysilicon gate on a high-k dielectric in a second region, wherein the first and second regions are disposed in a single substrate. Then a select gate (SG) may be formed adjacent to the MG stack in the first region of the semiconductor substrate. The sacrificial polysilicon gate may be replaced with a metal gate to form a logic field effect transistor (FET) in the second region. The surfaces of the substrate in the first region and the second region are substantially co-planar.Type: ApplicationFiled: December 20, 2017Publication date: January 24, 2019Applicant: Cypress Semiconductor CorporationInventors: Chun Chen, James Pak, Unsoon Kim, Inkuk Kang, Sung-Taeg Kang, Kuo Tung Chang