{"id":"https://openalex.org/W4406894600","doi":"https://doi.org/10.1109/a-sscc60305.2024.10848710","title":"A TFT-Based Flexible PPG Acquisition Circuit in a 3-\u03bcm LTPS Process for Packaging-Free Smart Ring Applications","display_name":"A TFT-Based Flexible PPG Acquisition Circuit in a 3-\u03bcm LTPS Process for Packaging-Free Smart Ring Applications","publication_year":2024,"publication_date":"2024-11-18","ids":{"openalex":"https://openalex.org/W4406894600","doi":"https://doi.org/10.1109/a-sscc60305.2024.10848710"},"language":"en","primary_location":{"id":"doi:10.1109/a-sscc60305.2024.10848710","is_oa":false,"landing_page_url":"https://doi.org/10.1109/a-sscc60305.2024.10848710","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2024 IEEE Asian Solid-State Circuits Conference (A-SSCC)","raw_type":"proceedings-article"},"type":"article","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/A5018558510","display_name":"Han\u2010Bo Zhang","orcid":"https://orcid.org/0000-0002-7647-3248"},"institutions":[{"id":"https://openalex.org/I183067930","display_name":"Shanghai Jiao Tong University","ror":"https://ror.org/0220qvk04","country_code":"CN","type":"education","lineage":["https://openalex.org/I183067930"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Hanbo Zhang","raw_affiliation_strings":["Shanghai Jiao Tong University,Department of Micro/Nano Electronics,Shanghai,China"],"affiliations":[{"raw_affiliation_string":"Shanghai Jiao Tong University,Department of Micro/Nano Electronics,Shanghai,China","institution_ids":["https://openalex.org/I183067930"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5011230183","display_name":"Yuqing Lou","orcid":"https://orcid.org/0000-0001-9218-2718"},"institutions":[{"id":"https://openalex.org/I183067930","display_name":"Shanghai Jiao Tong University","ror":"https://ror.org/0220qvk04","country_code":"CN","type":"education","lineage":["https://openalex.org/I183067930"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yuqing Lou","raw_affiliation_strings":["Shanghai Jiao Tong University,Department of Micro/Nano Electronics,Shanghai,China"],"affiliations":[{"raw_affiliation_string":"Shanghai Jiao Tong University,Department of Micro/Nano Electronics,Shanghai,China","institution_ids":["https://openalex.org/I183067930"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5037245137","display_name":"Bo Yang","orcid":"https://orcid.org/0000-0003-2855-3662"},"institutions":[{"id":"https://openalex.org/I183067930","display_name":"Shanghai Jiao Tong University","ror":"https://ror.org/0220qvk04","country_code":"CN","type":"education","lineage":["https://openalex.org/I183067930"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yang Bo","raw_affiliation_strings":["Shanghai Jiao Tong University,Department of Micro/Nano Electronics,Shanghai,China"],"affiliations":[{"raw_affiliation_string":"Shanghai Jiao Tong University,Department of Micro/Nano Electronics,Shanghai,China","institution_ids":["https://openalex.org/I183067930"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5082948728","display_name":"Zhouchen Ma","orcid":"https://orcid.org/0009-0009-0498-9024"},"institutions":[{"id":"https://openalex.org/I183067930","display_name":"Shanghai Jiao Tong University","ror":"https://ror.org/0220qvk04","country_code":"CN","type":"education","lineage":["https://openalex.org/I183067930"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zhouchen Ma","raw_affiliation_strings":["Shanghai Jiao Tong University,Department of Micro/Nano Electronics,Shanghai,China"],"affiliations":[{"raw_affiliation_string":"Shanghai Jiao Tong University,Department of Micro/Nano Electronics,Shanghai,China","institution_ids":["https://openalex.org/I183067930"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101401085","display_name":"Hao Wu","orcid":"https://orcid.org/0000-0001-9453-7228"},"institutions":[{"id":"https://openalex.org/I210824098","display_name":"Wilmington University","ror":"https://ror.org/00jrtvk29","country_code":"US","type":"education","lineage":["https://openalex.org/I210824098"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Hao Wu","raw_affiliation_strings":["RingConn LLC,Wilmington,DE,United States"],"affiliations":[{"raw_affiliation_string":"RingConn LLC,Wilmington,DE,United States","institution_ids":["https://openalex.org/I210824098"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5084226175","display_name":"Liang Qi","orcid":"https://orcid.org/0000-0001-5020-080X"},"institutions":[{"id":"https://openalex.org/I183067930","display_name":"Shanghai Jiao Tong University","ror":"https://ror.org/0220qvk04","country_code":"CN","type":"education","lineage":["https://openalex.org/I183067930"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Liang Qi","raw_affiliation_strings":["Shanghai Jiao Tong University,Department of Micro/Nano Electronics,Shanghai,China"],"affiliations":[{"raw_affiliation_string":"Shanghai Jiao Tong University,Department of Micro/Nano Electronics,Shanghai,China","institution_ids":["https://openalex.org/I183067930"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100764158","display_name":"Yongfu Li","orcid":"https://orcid.org/0000-0002-6322-8614"},"institutions":[{"id":"https://openalex.org/I183067930","display_name":"Shanghai Jiao Tong University","ror":"https://ror.org/0220qvk04","country_code":"CN","type":"education","lineage":["https://openalex.org/I183067930"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yongfu Li","raw_affiliation_strings":["Shanghai Jiao Tong University,Department of Micro/Nano Electronics,Shanghai,China"],"affiliations":[{"raw_affiliation_string":"Shanghai Jiao Tong University,Department of Micro/Nano Electronics,Shanghai,China","institution_ids":["https://openalex.org/I183067930"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100750078","display_name":"Xiaojun Guo","orcid":"https://orcid.org/0000-0003-3946-9458"},"institutions":[{"id":"https://openalex.org/I183067930","display_name":"Shanghai Jiao Tong University","ror":"https://ror.org/0220qvk04","country_code":"CN","type":"education","lineage":["https://openalex.org/I183067930"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xiaojun Guo","raw_affiliation_strings":["Shanghai Jiao Tong University,Department of Micro/Nano Electronics,Shanghai,China"],"affiliations":[{"raw_affiliation_string":"Shanghai Jiao Tong University,Department of Micro/Nano Electronics,Shanghai,China","institution_ids":["https://openalex.org/I183067930"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5087716003","display_name":"Guoxing Wang","orcid":"https://orcid.org/0000-0002-0235-1475"},"institutions":[{"id":"https://openalex.org/I183067930","display_name":"Shanghai Jiao Tong University","ror":"https://ror.org/0220qvk04","country_code":"CN","type":"education","lineage":["https://openalex.org/I183067930"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Guoxing Wang","raw_affiliation_strings":["Shanghai Jiao Tong University,Department of Micro/Nano Electronics,Shanghai,China"],"affiliations":[{"raw_affiliation_string":"Shanghai Jiao Tong University,Department of Micro/Nano Electronics,Shanghai,China","institution_ids":["https://openalex.org/I183067930"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5045329560","display_name":"Jian Zhao","orcid":"https://orcid.org/0000-0003-2140-1236"},"institutions":[{"id":"https://openalex.org/I183067930","display_name":"Shanghai Jiao Tong University","ror":"https://ror.org/0220qvk04","country_code":"CN","type":"education","lineage":["https://openalex.org/I183067930"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jian Zhao","raw_affiliation_strings":["Shanghai Jiao Tong University,Department of Micro/Nano Electronics,Shanghai,China"],"affiliations":[{"raw_affiliation_string":"Shanghai Jiao Tong University,Department of Micro/Nano Electronics,Shanghai,China","institution_ids":["https://openalex.org/I183067930"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":10,"corresponding_author_ids":["https://openalex.org/A5018558510"],"corresponding_institution_ids":["https://openalex.org/I183067930"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.24356568,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"3"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11429","display_name":"Semiconductor Lasers and Optical Devices","score":0.9954000115394592,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11429","display_name":"Semiconductor Lasers and Optical Devices","score":0.9954000115394592,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10299","display_name":"Photonic and Optical Devices","score":0.9908000230789185,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10611","display_name":"Organic Light-Emitting Diodes Research","score":0.9886999726295471,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/process","display_name":"Process (computing)","score":0.534684419631958},{"id":"https://openalex.org/keywords/thin-film-transistor","display_name":"Thin-film transistor","score":0.5069913864135742},{"id":"https://openalex.org/keywords/active-packaging","display_name":"Active packaging","score":0.4932991564273834},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.4400359094142914},{"id":"https://openalex.org/keywords/ring","display_name":"Ring (chemistry)","score":0.42141252756118774},{"id":"https://openalex.org/keywords/computer-hardware","display_name":"Computer hardware","score":0.3454288840293884},{"id":"https://openalex.org/keywords/embedded-system","display_name":"Embedded system","score":0.34337079524993896},{"id":"https://openalex.org/keywords/materials-science","display_name":"Materials science","score":0.28894102573394775},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.21436423063278198},{"id":"https://openalex.org/keywords/food-packaging","display_name":"Food packaging","score":0.17841270565986633},{"id":"https://openalex.org/keywords/mechanical-engineering","display_name":"Mechanical engineering","score":0.13686513900756836},{"id":"https://openalex.org/keywords/layer","display_name":"Layer (electronics)","score":0.11267927289009094},{"id":"https://openalex.org/keywords/composite-material","display_name":"Composite material","score":0.10472661256790161},{"id":"https://openalex.org/keywords/operating-system","display_name":"Operating system","score":0.07767283916473389},{"id":"https://openalex.org/keywords/chemistry","display_name":"Chemistry","score":0.07262074947357178}],"concepts":[{"id":"https://openalex.org/C98045186","wikidata":"https://www.wikidata.org/wiki/Q205663","display_name":"Process (computing)","level":2,"score":0.534684419631958},{"id":"https://openalex.org/C87359718","wikidata":"https://www.wikidata.org/wiki/Q1271916","display_name":"Thin-film transistor","level":3,"score":0.5069913864135742},{"id":"https://openalex.org/C188884661","wikidata":"https://www.wikidata.org/wiki/Q4677573","display_name":"Active packaging","level":3,"score":0.4932991564273834},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4400359094142914},{"id":"https://openalex.org/C2780378348","wikidata":"https://www.wikidata.org/wiki/Q25351438","display_name":"Ring (chemistry)","level":2,"score":0.42141252756118774},{"id":"https://openalex.org/C9390403","wikidata":"https://www.wikidata.org/wiki/Q3966","display_name":"Computer hardware","level":1,"score":0.3454288840293884},{"id":"https://openalex.org/C149635348","wikidata":"https://www.wikidata.org/wiki/Q193040","display_name":"Embedded system","level":1,"score":0.34337079524993896},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.28894102573394775},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.21436423063278198},{"id":"https://openalex.org/C74139830","wikidata":"https://www.wikidata.org/wiki/Q25380418","display_name":"Food packaging","level":2,"score":0.17841270565986633},{"id":"https://openalex.org/C78519656","wikidata":"https://www.wikidata.org/wiki/Q101333","display_name":"Mechanical engineering","level":1,"score":0.13686513900756836},{"id":"https://openalex.org/C2779227376","wikidata":"https://www.wikidata.org/wiki/Q6505497","display_name":"Layer (electronics)","level":2,"score":0.11267927289009094},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.10472661256790161},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.07767283916473389},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.07262074947357178},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/a-sscc60305.2024.10848710","is_oa":false,"landing_page_url":"https://doi.org/10.1109/a-sscc60305.2024.10848710","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2024 IEEE Asian Solid-State Circuits Conference (A-SSCC)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320337504","display_name":"Research and Development","ror":"https://ror.org/027s68j25"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":8,"referenced_works":["https://openalex.org/W1513856277","https://openalex.org/W2104527935","https://openalex.org/W2266175888","https://openalex.org/W2769065907","https://openalex.org/W2803852595","https://openalex.org/W2964541612","https://openalex.org/W4309270058","https://openalex.org/W4383501741"],"related_works":["https://openalex.org/W2137220188","https://openalex.org/W2532740565","https://openalex.org/W2527471840","https://openalex.org/W2049246612","https://openalex.org/W2271044277","https://openalex.org/W2321256480","https://openalex.org/W2067958891","https://openalex.org/W3177418061","https://openalex.org/W2279453894","https://openalex.org/W4387036067"],"abstract_inverted_index":{"Photoplethysmography":[0],"(PPG)":[1],"is":[2,40,71],"a":[3,55,76],"commonly":[4],"used":[5],"non-invasive":[6],"biological":[7,35],"signal":[8],"detection":[9],"technique":[10],"that":[11],"can":[12],"analyze":[13],"the":[14,45,65],"heart":[15],"rate":[16],"and":[17],"blood":[18],"oxygen":[19],"saturation,":[20],"which":[21,79],"plays":[22],"an":[23,41,93],"important":[24],"role":[25],"in":[26,44],"daily":[27],"health":[28],"monitoring.":[29],"In":[30],"Fig.":[31],"1":[32],"(top),":[33],"integrating":[34,50],"acquisition":[36],"into":[37,54],"smart":[38],"rings":[39],"emerging":[42],"trend":[43],"consumer":[46],"electronics":[47],"[1].":[48],"However,":[49],"all":[51],"building":[52],"blocks":[53],"space-limited":[56],"device":[57],"encounters":[58],"challenges.":[59],"It":[60],"also":[61],"bring":[62],"discomfort":[63],"to":[64,98],"users.":[66],"A":[67],"feasible":[68],"integrate":[69],"solution":[70],"soldering":[72],"Si":[73],"chips":[74],"onto":[75],"flexible":[77,86],"substrate":[78],"requires":[80],"costly":[81],"packaging":[82],"[2].":[83],"The":[84],"semi":[85],"system":[87],"constrains":[88],"its":[89],"bendability,":[90],"still":[91],"requiring":[92],"extensive":[94],"dynamic":[95],"range":[96],"(DR)":[97],"mitigate":[99],"motion":[100],"artifacts":[101],"[3].":[102]},"counts_by_year":[],"updated_date":"2025-12-21T23:12:01.093139","created_date":"2025-10-10T00:00:00"}