{"id":"https://openalex.org/W2749224202","doi":"https://doi.org/10.1109/jssc.2017.2732730","title":"A Sierpinski Space-Filling Clock Tree Using Multiply-by-3 Fractal-Coupled Ring Oscillators","display_name":"A Sierpinski Space-Filling Clock Tree Using Multiply-by-3 Fractal-Coupled Ring Oscillators","publication_year":2017,"publication_date":"2017-08-21","ids":{"openalex":"https://openalex.org/W2749224202","doi":"https://doi.org/10.1109/jssc.2017.2732730","mag":"2749224202"},"language":"en","primary_location":{"id":"doi:10.1109/jssc.2017.2732730","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jssc.2017.2732730","pdf_url":null,"source":{"id":"https://openalex.org/S83637746","display_name":"IEEE Journal of Solid-State Circuits","issn_l":"0018-9200","issn":["0018-9200","1558-173X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Journal of Solid-State Circuits","raw_type":"journal-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/A5101915169","display_name":"Yi-Wei Lin","orcid":null},"institutions":[{"id":"https://openalex.org/I25846049","display_name":"National Tsing Hua University","ror":"https://ror.org/00zdnkx70","country_code":"TW","type":"education","lineage":["https://openalex.org/I25846049"]}],"countries":["TW"],"is_corresponding":true,"raw_author_name":"Yi-Wei Lin","raw_affiliation_strings":["Department of Electrical Engineering, National Tsing Hua University, Hsinchu, Taiwan"],"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, National Tsing Hua University, Hsinchu, Taiwan","institution_ids":["https://openalex.org/I25846049"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5021456532","display_name":"Shawn S. H. Hsu","orcid":"https://orcid.org/0000-0002-0910-7096"},"institutions":[{"id":"https://openalex.org/I25846049","display_name":"National Tsing Hua University","ror":"https://ror.org/00zdnkx70","country_code":"TW","type":"education","lineage":["https://openalex.org/I25846049"]}],"countries":["TW"],"is_corresponding":false,"raw_author_name":"Shawn S. H. Hsu","raw_affiliation_strings":["Department of Electrical Engineering, National Tsing Hua University, Hsinchu, Taiwan"],"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, National Tsing Hua University, Hsinchu, Taiwan","institution_ids":["https://openalex.org/I25846049"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5101915169"],"corresponding_institution_ids":["https://openalex.org/I25846049"],"apc_list":null,"apc_paid":null,"fwci":0.1433,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.50740562,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":"52","issue":"11","first_page":"2947","last_page":"2962"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10187","display_name":"Radio Frequency Integrated Circuit Design","score":0.9998999834060669,"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/T10187","display_name":"Radio Frequency Integrated Circuit Design","score":0.9998999834060669,"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/T11417","display_name":"Advancements in PLL and VCO Technologies","score":0.9998999834060669,"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/T10323","display_name":"Analog and Mixed-Signal Circuit Design","score":0.9998000264167786,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical 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/jitter","display_name":"Jitter","score":0.6269496083259583},{"id":"https://openalex.org/keywords/clock-generator","display_name":"Clock generator","score":0.5966461300849915},{"id":"https://openalex.org/keywords/clock-skew","display_name":"Clock skew","score":0.5470898151397705},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.5432227253913879},{"id":"https://openalex.org/keywords/ring-oscillator","display_name":"Ring oscillator","score":0.44557029008865356},{"id":"https://openalex.org/keywords/amplitude","display_name":"Amplitude","score":0.42631879448890686},{"id":"https://openalex.org/keywords/topology","display_name":"Topology (electrical circuits)","score":0.40119582414627075},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.38499727845191956},{"id":"https://openalex.org/keywords/voltage","display_name":"Voltage","score":0.35951411724090576},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.21101102232933044},{"id":"https://openalex.org/keywords/clock-signal","display_name":"Clock signal","score":0.18893641233444214},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.17246893048286438}],"concepts":[{"id":"https://openalex.org/C134652429","wikidata":"https://www.wikidata.org/wiki/Q1052698","display_name":"Jitter","level":2,"score":0.6269496083259583},{"id":"https://openalex.org/C2778023540","wikidata":"https://www.wikidata.org/wiki/Q2164847","display_name":"Clock generator","level":4,"score":0.5966461300849915},{"id":"https://openalex.org/C60501442","wikidata":"https://www.wikidata.org/wiki/Q4382014","display_name":"Clock skew","level":4,"score":0.5470898151397705},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.5432227253913879},{"id":"https://openalex.org/C104111718","wikidata":"https://www.wikidata.org/wiki/Q2153973","display_name":"Ring oscillator","level":3,"score":0.44557029008865356},{"id":"https://openalex.org/C180205008","wikidata":"https://www.wikidata.org/wiki/Q159190","display_name":"Amplitude","level":2,"score":0.42631879448890686},{"id":"https://openalex.org/C184720557","wikidata":"https://www.wikidata.org/wiki/Q7825049","display_name":"Topology (electrical circuits)","level":2,"score":0.40119582414627075},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.38499727845191956},{"id":"https://openalex.org/C165801399","wikidata":"https://www.wikidata.org/wiki/Q25428","display_name":"Voltage","level":2,"score":0.35951411724090576},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.21101102232933044},{"id":"https://openalex.org/C137059387","wikidata":"https://www.wikidata.org/wiki/Q426882","display_name":"Clock signal","level":3,"score":0.18893641233444214},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.17246893048286438}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/jssc.2017.2732730","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jssc.2017.2732730","pdf_url":null,"source":{"id":"https://openalex.org/S83637746","display_name":"IEEE Journal of Solid-State Circuits","issn_l":"0018-9200","issn":["0018-9200","1558-173X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Journal of Solid-State Circuits","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7","score":0.7799999713897705}],"awards":[{"id":"https://openalex.org/G1780114128","display_name":null,"funder_award_id":"MOST 103-2220-E-007-003","funder_id":"https://openalex.org/F4320322795","funder_display_name":"Ministry of Science and Technology, Taiwan"}],"funders":[{"id":"https://openalex.org/F4320316499","display_name":"National Applied Research Laboratories","ror":"https://ror.org/05wcstg80"},{"id":"https://openalex.org/F4320322795","display_name":"Ministry of Science and Technology, Taiwan","ror":"https://ror.org/02kv4zf79"},{"id":"https://openalex.org/F4320323092","display_name":"National Tsing Hua University","ror":"https://ror.org/00zdnkx70"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":46,"referenced_works":["https://openalex.org/W1486698883","https://openalex.org/W1507822200","https://openalex.org/W1965844615","https://openalex.org/W1979508968","https://openalex.org/W1984845646","https://openalex.org/W1995027759","https://openalex.org/W2018164544","https://openalex.org/W2041088273","https://openalex.org/W2051282520","https://openalex.org/W2055990800","https://openalex.org/W2056496431","https://openalex.org/W2056693201","https://openalex.org/W2065989477","https://openalex.org/W2073080323","https://openalex.org/W2081725401","https://openalex.org/W2099801150","https://openalex.org/W2102586397","https://openalex.org/W2102765057","https://openalex.org/W2103745509","https://openalex.org/W2106809351","https://openalex.org/W2108057470","https://openalex.org/W2111991111","https://openalex.org/W2115468286","https://openalex.org/W2120336633","https://openalex.org/W2122724421","https://openalex.org/W2130758723","https://openalex.org/W2135441328","https://openalex.org/W2138204312","https://openalex.org/W2138652368","https://openalex.org/W2144518356","https://openalex.org/W2146068626","https://openalex.org/W2151451253","https://openalex.org/W2155236300","https://openalex.org/W2156253373","https://openalex.org/W2157833381","https://openalex.org/W2166694777","https://openalex.org/W2289575812","https://openalex.org/W2344622367","https://openalex.org/W2462522525","https://openalex.org/W2946790931","https://openalex.org/W3147437556","https://openalex.org/W4235168608","https://openalex.org/W6641664567","https://openalex.org/W6660654091","https://openalex.org/W6696802242","https://openalex.org/W6704423157"],"related_works":["https://openalex.org/W2369998856","https://openalex.org/W2155236300","https://openalex.org/W2370061661","https://openalex.org/W1969806930","https://openalex.org/W2141594064","https://openalex.org/W2169622190","https://openalex.org/W1574257586","https://openalex.org/W849640194","https://openalex.org/W2224788396","https://openalex.org/W2002107209"],"abstract_inverted_index":{"A":[0],"space-filling":[1,75],"clock":[2,22,62,76],"tree":[3,84],"is":[4,71],"presented,":[5],"which":[6],"takes":[7],"an":[8,52],"advantage":[9],"of":[10,68,90,100],"LC":[11],"resonant":[12],"clocking,":[13],"to":[14,46,57,113],"obtain":[15],"a":[16,24,43,65,74,108,122],"uniform":[17],"phase":[18,55],"and":[19,39,95,129,150,163],"amplitude":[20,99],"multiply-by-3":[21],"from":[23,165],"unique":[25],"Sierpinski-coupled":[26],"ring":[27],"oscillator":[28],"(SCRO)":[29],"array.":[30],"The":[31,48,60,78,104,154],"three-stage":[32],"interleaved":[33],"SCROs":[34],"resemble":[35],"the":[36,83,87,91,97,101],"Sierpinski":[37],"triangle,":[38],"are":[40],"synchronized":[41],"with":[42,64],"common":[44],"frequency":[45],"all.":[47],"SCRO":[49,92],"further":[50],"provides":[51],"aligned":[53],"output":[54],"relationship":[56],"reduce":[58],"skew.":[59],"triangle":[61],"grid":[63],"side":[66],"length":[67],"3.2":[69],"mm":[70],"filled":[72],"by":[73],"tree.":[77],"3-D":[79],"stacked":[80],"transformers":[81,105],"at":[82,126],"endpoints":[85],"extract":[86],"third":[88],"harmonic":[89],"array":[93],"oscillation":[94],"scale":[96],"voltage":[98],"extracted":[102],"clock.":[103],"also":[106],"perform":[107],"built-in":[109],"bandpass":[110],"filtering":[111],"function":[112],"remove":[114],"injected":[115],"noise.":[116],"An":[117],"experimental":[118],"prototype":[119],"integrated":[120],"in":[121,160],"90-nm":[123],"CMOS":[124],"operates":[125],"2.85-4.3":[127],"GHz":[128],"consumes":[130],"19.2-49":[131],"mW":[132],"under":[133],"0.7-1":[134],"V":[135],"supply":[136,141],"voltages.":[137],"With":[138],"300-mV":[139],"added":[140],"noise,":[142],"jitter":[143,164],"was":[144],"measured":[145,155],"as":[146],"3.4":[147],"ps":[148,152],"(rms)":[149],"17.7":[151],"(pp).":[153],"results":[156],"reveal":[157],"substantial":[158],"improvements":[159],"both":[161],"power":[162],"this":[166],"approach.":[167]},"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2019,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}