{"id":"https://openalex.org/W3211735738","doi":"https://doi.org/10.1109/bcicts50416.2021.9682203","title":"Optimized Buffer Stack with Carbon-Doping for Performance Improvement of GaN HEMTs","display_name":"Optimized Buffer Stack with Carbon-Doping for Performance Improvement of GaN HEMTs","publication_year":2021,"publication_date":"2021-12-05","ids":{"openalex":"https://openalex.org/W3211735738","doi":"https://doi.org/10.1109/bcicts50416.2021.9682203","mag":"3211735738"},"language":"en","primary_location":{"id":"doi:10.1109/bcicts50416.2021.9682203","is_oa":false,"landing_page_url":"https://doi.org/10.1109/bcicts50416.2021.9682203","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2021 IEEE BiCMOS and Compound Semiconductor Integrated Circuits and Technology Symposium (BCICTS)","raw_type":"proceedings-article"},"type":"preprint","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5091865946","display_name":"Ajay Shanbhag","orcid":"https://orcid.org/0000-0002-2858-1666"},"institutions":[{"id":"https://openalex.org/I24676775","display_name":"Indian Institute of Technology Madras","ror":"https://ror.org/03v0r5n49","country_code":"IN","type":"education","lineage":["https://openalex.org/I24676775"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Ajay Shanbhag","raw_affiliation_strings":["Indian Institute of Technology Madras, India","IIT Madras - Indian Institute of Technology Madras (Chennai 600036 - India)"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Indian Institute of Technology Madras, India","institution_ids":["https://openalex.org/I24676775"]},{"raw_affiliation_string":"IIT Madras - Indian Institute of Technology Madras (Chennai 600036 - India)","institution_ids":["https://openalex.org/I24676775"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5068872260","display_name":"M. P. Sruthi","orcid":null},"institutions":[{"id":"https://openalex.org/I24676775","display_name":"Indian Institute of Technology Madras","ror":"https://ror.org/03v0r5n49","country_code":"IN","type":"education","lineage":["https://openalex.org/I24676775"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Sruthi M P","raw_affiliation_strings":["Indian Institute of Technology Madras, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Indian Institute of Technology Madras, India","institution_ids":["https://openalex.org/I24676775"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5016169727","display_name":"Farid Medjdoub","orcid":"https://orcid.org/0000-0002-4753-4718"},"institutions":[{"id":"https://openalex.org/I1294671590","display_name":"Centre National de la Recherche Scientifique","ror":"https://ror.org/02feahw73","country_code":"FR","type":"government","lineage":["https://openalex.org/I1294671590"]},{"id":"https://openalex.org/I2279609970","display_name":"Universit\u00e9 de Lille","ror":"https://ror.org/02kzqn938","country_code":"FR","type":"education","lineage":["https://openalex.org/I2279609970"]},{"id":"https://openalex.org/I4210123471","display_name":"Institut d'\u00e9lectronique de micro\u00e9lectronique et de nanotechnologie","ror":"https://ror.org/02q4res37","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I1294671590","https://openalex.org/I137614889","https://openalex.org/I2279609970","https://openalex.org/I3132279224","https://openalex.org/I4210095849","https://openalex.org/I4210123471","https://openalex.org/I4387154098","https://openalex.org/I70348806","https://openalex.org/I70348806","https://openalex.org/I7454413"]},{"id":"https://openalex.org/I70348806","display_name":"Universit\u00e9 Polytechnique Hauts-de-France","ror":"https://ror.org/02ezch769","country_code":"FR","type":"education","lineage":["https://openalex.org/I70348806"]},{"id":"https://openalex.org/I7454413","display_name":"\u00c9cole Centrale de Lille","ror":"https://ror.org/01x441g73","country_code":"FR","type":"education","lineage":["https://openalex.org/I7454413"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"Farid Medjdoub","raw_affiliation_strings":["IEMN-CNRS, Institute of Electronics, Microelectronics and Nanotechnology, France","IEMN - Institut d\u2019\u00c9lectronique, de Micro\u00e9lectronique et de Nanotechnologie - UMR 8520 ([Univ. Lille, CNRS, Centrale Lille Institut, Junia, Univ. Polytechnique Hauts-de-France] \u2013\u2013\r\nLaboratoire Central \u2013 Cit\u00e9 Scientifique \u2013 Avenue Poincar\u00e9 \u2013 CS 60069 \u2013 59652 VILLENEUVE D\u2019ASCQ CEDEX - France)","WIND - IEMN - WIde baNd gap materials and Devices - IEMN (France)"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"IEMN-CNRS, Institute of Electronics, Microelectronics and Nanotechnology, France","institution_ids":["https://openalex.org/I4210123471","https://openalex.org/I1294671590"]},{"raw_affiliation_string":"IEMN - Institut d\u2019\u00c9lectronique, de Micro\u00e9lectronique et de Nanotechnologie - UMR 8520 ([Univ. Lille, CNRS, Centrale Lille Institut, Junia, Univ. Polytechnique Hauts-de-France] \u2013\u2013\r\nLaboratoire Central \u2013 Cit\u00e9 Scientifique \u2013 Avenue Poincar\u00e9 \u2013 CS 60069 \u2013 59652 VILLENEUVE D\u2019ASCQ CEDEX - France)","institution_ids":["https://openalex.org/I1294671590","https://openalex.org/I70348806","https://openalex.org/I7454413","https://openalex.org/I4210123471","https://openalex.org/I2279609970"]},{"raw_affiliation_string":"WIND - IEMN - WIde baNd gap materials and Devices - IEMN (France)","institution_ids":["https://openalex.org/I4210123471"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5013987317","display_name":"Anjan Chakravorty","orcid":"https://orcid.org/0000-0002-5253-8975"},"institutions":[{"id":"https://openalex.org/I24676775","display_name":"Indian Institute of Technology Madras","ror":"https://ror.org/03v0r5n49","country_code":"IN","type":"education","lineage":["https://openalex.org/I24676775"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Anjan Chakravorty","raw_affiliation_strings":["Indian Institute of Technology Madras, India","IIT Madras - Indian Institute of Technology Madras (Chennai 600036 - India)"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Indian Institute of Technology Madras, India","institution_ids":["https://openalex.org/I24676775"]},{"raw_affiliation_string":"IIT Madras - Indian Institute of Technology Madras (Chennai 600036 - India)","institution_ids":["https://openalex.org/I24676775"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5081798499","display_name":"Nandita DasGupta","orcid":"https://orcid.org/0000-0001-8495-9398"},"institutions":[{"id":"https://openalex.org/I24676775","display_name":"Indian Institute of Technology Madras","ror":"https://ror.org/03v0r5n49","country_code":"IN","type":"education","lineage":["https://openalex.org/I24676775"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Nandita DasGupta","raw_affiliation_strings":["Indian Institute of Technology Madras, India","IIT Madras - Indian Institute of Technology Madras (Chennai 600036 - India)"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Indian Institute of Technology Madras, India","institution_ids":["https://openalex.org/I24676775"]},{"raw_affiliation_string":"IIT Madras - Indian Institute of Technology Madras (Chennai 600036 - India)","institution_ids":["https://openalex.org/I24676775"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5015176343","display_name":"Amitava DasGupta","orcid":"https://orcid.org/0000-0001-6994-8447"},"institutions":[{"id":"https://openalex.org/I24676775","display_name":"Indian Institute of Technology Madras","ror":"https://ror.org/03v0r5n49","country_code":"IN","type":"education","lineage":["https://openalex.org/I24676775"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Amitava DasGupta","raw_affiliation_strings":["Indian Institute of Technology Madras, India","IIT Madras - Indian Institute of Technology Madras (Chennai 600036 - India)"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Indian Institute of Technology Madras, India","institution_ids":["https://openalex.org/I24676775"]},{"raw_affiliation_string":"IIT Madras - Indian Institute of Technology Madras (Chennai 600036 - India)","institution_ids":["https://openalex.org/I24676775"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":6,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.8061,"has_fulltext":true,"cited_by_count":8,"citation_normalized_percentile":{"value":0.72096096,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":98},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"4"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10099","display_name":"GaN-based semiconductor devices and materials","score":1.0,"subfield":{"id":"https://openalex.org/subfields/3104","display_name":"Condensed Matter Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10099","display_name":"GaN-based semiconductor devices and materials","score":1.0,"subfield":{"id":"https://openalex.org/subfields/3104","display_name":"Condensed Matter Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12529","display_name":"Ga2O3 and related materials","score":0.9995999932289124,"subfield":{"id":"https://openalex.org/subfields/2504","display_name":"Electronic, Optical and Magnetic Materials"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10090","display_name":"ZnO doping and properties","score":0.9988999962806702,"subfield":{"id":"https://openalex.org/subfields/2505","display_name":"Materials Chemistry"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/doping","display_name":"Doping","score":0.6081914305686951},{"id":"https://openalex.org/keywords/stack","display_name":"Stack (abstract data type)","score":0.4872788190841675},{"id":"https://openalex.org/keywords/materials-science","display_name":"Materials science","score":0.36363035440444946},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.3406010866165161},{"id":"https://openalex.org/keywords/topology","display_name":"Topology (electrical circuits)","score":0.33575570583343506},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.28772443532943726},{"id":"https://openalex.org/keywords/optoelectronics","display_name":"Optoelectronics","score":0.2600243389606476},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.14709705114364624},{"id":"https://openalex.org/keywords/operating-system","display_name":"Operating system","score":0.09505006670951843}],"concepts":[{"id":"https://openalex.org/C57863236","wikidata":"https://www.wikidata.org/wiki/Q1130571","display_name":"Doping","level":2,"score":0.6081914305686951},{"id":"https://openalex.org/C9395851","wikidata":"https://www.wikidata.org/wiki/Q177929","display_name":"Stack (abstract data type)","level":2,"score":0.4872788190841675},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.36363035440444946},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.3406010866165161},{"id":"https://openalex.org/C184720557","wikidata":"https://www.wikidata.org/wiki/Q7825049","display_name":"Topology (electrical circuits)","level":2,"score":0.33575570583343506},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.28772443532943726},{"id":"https://openalex.org/C49040817","wikidata":"https://www.wikidata.org/wiki/Q193091","display_name":"Optoelectronics","level":1,"score":0.2600243389606476},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.14709705114364624},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.09505006670951843}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/bcicts50416.2021.9682203","is_oa":false,"landing_page_url":"https://doi.org/10.1109/bcicts50416.2021.9682203","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2021 IEEE BiCMOS and Compound Semiconductor Integrated Circuits and Technology Symposium (BCICTS)","raw_type":"proceedings-article"},{"id":"pmh:oai:HAL:hal-03421537v1","is_oa":false,"landing_page_url":"https://hal.science/hal-03421537","pdf_url":null,"source":{"id":"https://openalex.org/S4306402512","display_name":"HAL (Le Centre pour la Communication Scientifique Directe)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1294671590","host_organization_name":"Centre National de la Recherche Scientifique","host_organization_lineage":["https://openalex.org/I1294671590"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"2021 IEEE BiCMOS and Compound Semiconductor Integrated Circuits and Technology Symposium (BCICTS), Dec 2021, Monterey, CA, virtual, United States. &#x27E8;10.1109/BCICTS50416.2021.9682203&#x27E9;","raw_type":"Conference papers"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G5284480272","display_name":null,"funder_award_id":"CRG/2018/001081","funder_id":"https://openalex.org/F4320334771","funder_display_name":"Science and Engineering Research Board"}],"funders":[{"id":"https://openalex.org/F4320334771","display_name":"Science and Engineering Research Board","ror":"https://ror.org/03ffdsr55"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":15,"referenced_works":["https://openalex.org/W1972815456","https://openalex.org/W1974632302","https://openalex.org/W2010775470","https://openalex.org/W2027014573","https://openalex.org/W2078588266","https://openalex.org/W2091434121","https://openalex.org/W2124722583","https://openalex.org/W2125864840","https://openalex.org/W2335100009","https://openalex.org/W2553705919","https://openalex.org/W2795195667","https://openalex.org/W2914254792","https://openalex.org/W3023035873","https://openalex.org/W3023498344","https://openalex.org/W3107770449"],"related_works":["https://openalex.org/W2748952813","https://openalex.org/W4246450666","https://openalex.org/W4388998267","https://openalex.org/W2898370298","https://openalex.org/W2380576232","https://openalex.org/W4390401159","https://openalex.org/W2744391499","https://openalex.org/W3120461830","https://openalex.org/W4230250635","https://openalex.org/W3041790586"],"abstract_inverted_index":{"This":[0],"paper":[1],"focuses":[2],"on":[3,86,134],"determining":[4],"an":[5,140],"optimized":[6,141],"value":[7],"of":[8,22,27,82,102,113,144,150,164],"carbon-doping":[9,83,100,123,148],"level":[10,101,124,149],"in":[11,25,49,54,107,120,155,162],"the":[12,20,47,63,71,87,108,117,122,132,156,159],"buffer":[13,109,157],"and":[14,39,58,125,168],"corresponding":[15],"channel":[16,72,111,126,142],"thickness":[17,73,112,127,143],"to":[18,130],"improve":[19],"performance":[21],"GaN":[23],"HEMTs":[24],"terms":[26,163],"subthreshold":[28],"slope":[29],"<tex":[30,36,42,55,59,64,103,151,165,169],"xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"":[31,37,43,56,60,65,104,152,166,170],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">$(SS)$</tex>":[32],",":[33],"breakdown":[34],"voltage":[35],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">$(V_{BD})$</tex>":[38],"transit":[40],"frequency":[41],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">$(f_{t})$</tex>":[44],".":[45,172],"With":[46],"increase":[48],"carbon-doping,":[50],"we":[51],"observe":[52],"improvements":[53],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">$SS$</tex>":[57],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">$V_{BD}$</tex>":[61,167],"while":[62],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">$f_{t}$</tex>":[66,171],"is":[67,84,91],"reduced.":[68],"However,":[69],"as":[70],"increases":[74],"above":[75],"a":[76,97],"certain":[77],"thickness,":[78],"no":[79],"significant":[80],"impact":[81],"observed":[85,138],"characteristics.":[88],"TCAD":[89],"simulation":[90],"calibrated":[92,118],"using":[93],"experimental":[94],"data":[95],"for":[96],"device":[98,119],"with":[99,110,147],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">$3\\times":[105],"10^{18}cm^{-3}$</tex>":[106],"500":[114],"nm.":[115],"Using":[116],"TCAD,":[121],"are":[128],"varied":[129],"see":[131],"effects":[133],"different":[135],"parameters.":[136],"We":[137],"that":[139],"200":[145],"nm":[146],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">$1\\times":[153],"10^{19}cm^{-3}$</tex>":[154],"yields":[158],"best":[160],"results":[161]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":4},{"year":2023,"cited_by_count":1}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}