I-Multilayer Ceramic PCB: Isakhiwo, Inqubo Yokukhiqiza, kanye Nezicelo

Iyini i-Multilayer Ceramic PCB Technology?

I-PCB ye-ceramic enezingqimba eziningi ihlanganisa izendlalelo eziningi ze-ceramic dielectric namaphethini okhondatha wangaphakathi ukuze yakhe imidwebo yesekethe enezinhlangothi ezintathu. Ngokungafani namabhodi e-ceramic anesendlalelo esisodwa, lezi zakhiwo zezendlalelo eziningi zinika amandla ukuminyana kwesekethe okuphakeme kakhulu kanye nezikimu zokuxhuma eziyinkimbinkimbi ngaphakathi kwezici zefomu elihlangene. Le ndlela yokupakisha ethuthukisiwe isibalulekile ezinhlelweni zesimanje ze-elekthronikhi ezidinga ukuphathwa okushisayo okuphakeme, ukusebenza kwe-high-frequency, nokuthembeka okukhethekile.

Ukushintshela kuma-substrates e-ceramic yezendlalelo eziningi kuphendula ngokuqondile ezimfuno ezikhulayo ezivela ku-electronics wamandla aphezulu, ukuxhumana kwe-millimeter-wave, nezinhlelo zezimoto ezibaluleke kakhulu zokuphepha. Izimboni ezifana ne-aerospace, izinhlelo ze-radar, nezokuxhumana ze-RF ziya ngokuya zincika kulawa ma-substrate ukuze ahlangabezane nezicaciso zokusebenza eziqinile lapho ama-PCB avamile ephilayo engakwazi ukuletha ukusebenza okwanele okushisayo noma kukagesi.

Isakhiwo se-PCB ye-Ceramic Multilayer kanye Nezingxenye Ezibalulekile

Ukubunjwa Kwesendlalelo

Amabhulokhi wokwakha ayisisekelo we-PCB ye-ceramic ye-multilayer aqukethe izendlalelo ze-ceramic ezishintshayo ze-dielectric kanye nezendlalelo zekhondatha ezinephethini ezihlanganiswe ngokudubula ngokubambisana kwezinga lokushisa eliphezulu. Ingxenye ngayinye yenza umsebenzi othile ekusebenzeni kwe-substrate kukonke:

• Izendlalelo ze-Dielectric - Alumina (Al₂O₃), i-aluminium nitride (AlN), or glass-izinhlanganisela ze-ceramic selected based on thermal conductivity and dielectric requirements
• Amaphethini omqhubi - Isiliva, i-tungsten, i-molybdenum, noma ithusi ekhethiwe ngokuya ngezinga lokushisa lokudubula kanye nezinhloso zokusebenza zikagesi
• Ngokuxhumanisa - Izindlela zikagesi eziqondile ezixhuma izingqimba eziningi zomzila, okuvumela ukwakheka kwesekethe enezinhlangothi ezintathu
• Izindiza eziphansi nezinamandla - Izendlalelo zangaphakathi ezishumekiwe ezithuthukisa ukuzivikela kwe-electromagnetic futhi zinciphise umsindo oshintshayo

I-Stack-Up Architecture

I-substrate ye-ceramic evamile iqukethe izendlalelo ezine kuya kwezingamashumi amabili, nakuba imiklamo ekhethekile ingase ihlanganise okwengeziwe. Isendlalelo ngasinye se-dielectric sisukela ku-50 kuya ku-250 micrometers ukujiya, okuvumela ukulawula okunembe phezu komthamo we-interlayer kanye nokuvinjwa kwesici. Ngokuxhumanisa, okwakhiwa ngokubhoboza nge-laser noma ukubhoboza ngomshini ngaphambi kwe-lamination, dala ukuxhumana kukagesi okuqondile okuvumela umzila oyinkimbinkimbi ezindizeni eziningi.

Izinzuzo Ngaphezu Kwemiklamo Yongqimba Olulodwa

Nakuba ama-PCB e-ceramic anezingqimba eyodwa enikeza izakhiwo ezinhle kakhulu zokushisa, amabhodi e-ceramic anezingqimba eziningi anikeza ukuguquguquka okukhulu komklamo. Ukwakheka okunezingqimba ezintathu kususa imingcele yokuwela, kuvumela umzila we-differential pair ngokulawula okunembile kwesikhala, futhi kuhambisana nobuningi bezingxenye eziphakeme kakhulu. Izindiza zomhlaba zangaphakathi zinikeza ukuhambisana okuphezulu kwe-electromagnetic uma kuqhathaniswa nemiklamo enezingqimba eyodwa, okwenza izakhiwo ezinezingqimba eziningi zibaluleke kakhulu kumasekethe edijithali e-RF azwelayo kanye nesivinini esikhulu.

I-Multilayer Ceramic PCB Manufacturing: Izinqubo ze-LTCC kanye ne-HTCC

I-Low Temperature Co-fired Ceramic (LTCC)

Ubuchwepheshe be-LTCC busebenza emazingeni okushisa acishe abe ngu-850°C, okuvumela isiliva esisebenza kakhulu noma i-metalization yegolide. Leli banga eliphansi lokushisa livumela ukuhlanganiswa kwezingxenye ze-passive ezishumekiwe njengama-capacitor nama-resistors ngqo ngaphakathi kwezendlalelo zobumba. Umphumela uba amamojula ahlanganiswe kakhulu anobunzima bomhlangano obuncishisiwe kanye nokusebenza kukagesi okuthuthukisiwe ngokusebenzisa izindlela zokuxhuma ezifushanisiwe.

I-High Temperature Co-fired Ceramic (HTCC)

Ama-substrates e-HTCC angena ekushiseni cishe ku-1600°C, okwenza kudingeke amakhondaktha ensimbi aphikisayo njenge-tungsten noma i-molybdenum. Inqubo ye-HTCC ikhiqiza izakhiwo ze-ceramic ezinamandla aphakeme emishini, ukuminyana okuphezulu, kanye ne-hermeticity engcono uma kuqhathaniswa nokuhlukahluka kwe-LTCC. Lezi zici zenza i-HTCC yamabhodi e-ceramic amaningi afanelekele izinhlelo zokusebenza zemvelo ezinokhahlo lapho ukuqina kwemishini nokuthembeka kwesikhathi eside kubaluleke kakhulu.

Izinyathelo Zenqubo Yokukhiqiza

Ukukhiqizwa kwama-PCB e-ceramic amaningi kulandela ukulandelana okulawulwa ngokunembile:

1. Ukulungiswa kwetheyiphu eluhlaza – Impushana ye-Ceramic exutshwe nezibophezelo zemvelo iphonswa emashidini amancane, aguqukayo
2. Ukuphrinta komqhubi - Ukuphrinta kwesikrini kusebenzisa okunamathiselwe kwensimbi ngamaphethini achazwe ngokunembile kusendlalelo ngasinye
3. Ngokubunjwa nokugcwalisa - Izimbobo ziyabhodlozwa noma zibhojwe nge-laser bese zigcwaliswa ngezinto eziguquguqukayo
4. Ukuqondanisa ungqimba kanye ne-lamination - Izendlalelo eziningi ziqondaniswe ngokucophelela futhi zicindezelwe ndawonye ngaphansi kwezimo ezilawulwayo
5. Ukudubula ngokubambisana - Umhlangano uthola ukushisa okulawulwayo okushisa ama-binder, izinhlayiya ze-sinter ceramic, kanye nezingqimba zama-fuses conductor
6. Ukusebenza ngemuva - I-metallization engaphezulu, ama-finishing athengiswayo, kanye nokudayela okunembayo kuqeda ukwakhiwa

Ukusebenza Kogesi Nokushisa kwe-Multilayer Ceramic PCB

Properties Dielectric

Ama-substrates e-PCB ye-ceramic ye-Multilayer abonisa ama-dielectric constants ngokuvamile asukela ku-5 kuye ku-9, kuye ngokwakhiwa kwento. Le dielectric engaguquki inika amandla idizayini ye-impedance elawulwayo yezinhlelo zokusebenza ze-high-frequency ngenkathi igcina i-compact circuit geometries. I-tangent yokulahlekelwa okuphansi kwezinto ze-ceramic iqinisekisa ukuncishiswa kwesignali okuncane, okwenza lawa ma-substrates alungele amasekhethi ama-millimeter-wave nama-microwave asebenza ngaphezu kuka-30 GHz.

Amakhono Okuphatha Okushisayo

I-Aluminium nitride multilayer Ceramic board iletha amanani e-thermal conductivity afika ku-170 W/m·K, edlula kude ama-alumina angaphansi avamile kanye nokusebenza kwethusi okusondelayo. Leli khono elikhethekile lokusabalalisa ukushisa livumela ukukhwezwa okuqondile kwamadivayisi we-semiconductor yamandla aphezulu ngaphandle kwezinto zesixhumi esibonakalayo esishisayo esimaphakathi. Ngisho nama-PCB e-alumina e-alumina enziwe ngezinto eziningi ze-ceramic, ane-thermal conductivity engaba ngu-20-30 W/m·K, enza kahle kakhulu ngaphezu kwama-organic substrates nge-oda lobukhulu.

Ukufanisa Ukwandiswa Okushisayo

I-coefficient yokunwetshwa kwe-thermal yama-substrates e-ceramic ifana eduze nezinto ze-silicon semiconductor ku-6 ukuya ku-8 ppm/°C. Lokhu kuhambelana okushisayo kunciphisa ingcindezi ye-thermomechanical ngesikhathi sokuhamba ngebhayisikili, kunciphisa ingozi yokukhathala okuhlangene kwe-solder kuma-chip-on-board assemblies. Ukuzinza kohlangothi kwamabhodi e-ceramic anezingqimba eziningi kuwo wonke amazinga okushisa kuqinisekisa ukusebenza kukagesi okungaguquki ukusuka ku-cryogenic kuya kumazinga okushisa okusebenza aphakeme.

Izinzuzo ezibalulekile ze-Multilayer Ceramic PCB Technology

I-PCB ye-ceramic ye-multilayer iletha izinzuzo zokusebenza ezihlukile eziyenza ibaluleke kakhulu ezinhlelweni ezifunayo:

• High-density interconnection - Izakhiwo ezinezinhlangothi ezintathu zithatha izinkulungwane zokuxhuma kanye nezendlalelo eziningi zomzila ngaphakathi kwezinyathelo ezincane
• Ukuchithwa kwe-thermal okuphezulu - Ukusabalalisa ukushisa okukhethekile kunika amandla ukuminyana kwamandla aphezulu kanye nokusebenza okuthuthukisiwe kwedivayisi ezinhlelweni ezishisa kakhulu
• Ukusebenza okuhle kakhulu kwe-high-frequency - Ukulahleka kwe-dielectric okuphansi kanye nezici ze-impedance ezilawulwayo zisekela ama-millimeter-wave circuits ngokuwohloka kwesignali okuncane
• Ukuqina komshini - Ama-substrates e-Ceramic amelana nokugqwala, agcina ubuqotho besakhiwo ngaphansi kokudlidliza kanye nemithwalo yokushaqeka, futhi abonisa ukuwohloka okuncane phakathi nesikhathi sokuphila eside.
• Ukuhlanganiswa kwengxenye - Ubuchwepheshe be-LTCC buvumela izingxenye ze-passive ezishumekiwe, ukunciphisa ubunzima bomhlangano kanye nokwenza ngcono ukusebenza kukagesi

Imikhawulo Yedizayini kanye Nezinselele Zokukhiqiza

Ukucatshangelwa Kwezindleko

Izindleko zokukhiqiza zama-PCB e-ceramic anezingqimba eziningi zedlula kakhulu lezo zama-substrates ezinto eziphilayo ezivamile ngenxa yezinto ezikhethekile, okokusebenza okunembayo, kanye nemijikelezo yokukhiqiza enwetshiwe. Inqubo yokudubula ngokubambisana idinga isimo sezulu esilawulwa ngokucophelela kanye namaphrofayili okushisa, anamathuba alinganiselwe okusebenza kabusha uma kwenzeka iphutha. Lezi zici zezomnotho zenza amabhodi e-ceramic afaneleka kakhulu ezinhlelweni zokusebenza lapho izidingo zokusebenza zithethelela ukutshalwa kwezimali.

Icubungula Inkimbinkimbi

Ukuthola ukuqondana okunembayo kwesendlalelo kuya kwesendlalelo ngesikhathi sokucwala kuletha izinselele zobuchwepheshe, ikakhulukazi njengoba ngosayizi behla kanye nokubalwa kwesendlalelo kuyanda. Ukuncipha ngesikhathi sokudubula kufanele kubikezelwe ngokunembile futhi kunxeshezelwe emsebenzini wobuciko wokuqala, njengoba izinguquko ezinobukhulu zingafinyelela kumaphesenti angu-15-20. Isidingo semithetho eyisipesheli yokuklama kanye nobuchwepheshe bokukhiqiza sidala imigoqo ezinkampanini ezingajwayelene nobuchwepheshe be-ceramic substrate.

Izingqinamba zosayizi

Osayizi bephaneli bokukhiqizwa kwe-PCB ye-ceramic ye-multilayer ngokuvamile bahlala bebancane kunamaphaneli e-PCB aphilayo, akhawulela umnotho wesikali. Ama-substrates e-ceramic anefomethi enkulu abhekana nengozi eyengeziwe yokuqhekeka kwe-warpage kanye nokuqhekeka ngesikhathi sokudubula, okuphoqa ngempumelelo ubukhulu obusebenzayo kumafomethi amamojula amancane.

Izicelo ze-Multilayer Ceramic PCB kuzo zonke izimboni

I-RF kanye ne-Microwave Systems

Amasistimu e-RF kanye nama-microwave asebenzisa kakhulu ama-substrates e-ceramic ye-multilayer ukuhlunga, ama-diplexer, izikhulisamandla zamandla, namanethiwekhi okuphakelayo kwezinti asebenza kusuka ku-UHF ngokusebenzisa amaza ama-millimeter-wave. Ukulahleka kwe-dielectric okuphansi kanye nezici ze-impedance ezilawulwayo zenza ama-circuits asebenzayo asebenza kakhulu anokulahlekelwa okuncane kokufaka. Ezokuxhumana ngesathelayithi, ingqalasizinda ye-5G, nezinhlelo ze-radar zincike kulawa mamojula e-ceramic ukuze kucutshungulwe isignali okuthembekile kumafrikhwensi angaphezu kuka-30 GHz.

Izithuthi Zamagesi

Izinhlelo ezithuthukisiwe zokusiza abashayeli kanye nezinkundla zezimoto ezizimele zidinga ama-PCB e-ceramic amaningi kuma-transceiver e-radar asebenza kuma-24 GHz kanye nama-77 GHz. Ukuzinza okushisayo nokuthembeka kwama-substrates e-ceramic kuqinisekisa ukusebenza okufanayo kuwo wonke amazinga okushisa ezimoto ukusuka ku- -40°C kuya ku-+150°C. Amamojula we-sensor Fusion ahlanganisa imisebenzi eminingi kumabhodi e-ceramic e-multilayer, anciphisa ubunzima besistimu ngenkathi ethuthukisa ukuhambisana kwe-electromagnetic.

Amandla kagesi

Izinhlelo zokusebenza ezinamandla aphezulu ziyazuza ezicini ezinhle kakhulu zokushabalalisa ukushisa ze-substrates ze-ceramic ezinezingqimba eziningi:

• Amamojula we-IGBT - Ukuhlanganiswa okuqondile kwama-semiconductors amandla kunika amandla imiklamo ehlangene ngokusebenza okuthuthukisiwe
• Iziguquli ze-DC-DC - Ama-inductances aphansi e-parasitic asekela isivinini sokushintsha ngokushesha kanye nokunciphisa ukuphazamiseka kwe-electromagnetic
• Abashayeli be-LED – I-thermal conductivity ephezulu igcina amazinga okushisa okuhlangana ukuze akhiphe ukukhanya okuhle kanye nokuphila okunwetshiwe

I-Aerospace kanye namadivayisi wezokwelapha

Amasistimu we-aerospace adinga ukwethembeka kanye ne-hermeticity ehlinzekwa amabhodi e-ceramic anezingqimba eziningi ze-HTCC kumasistimu okuxhumana namaphakheji ezinzwa. Izicelo zezokwelapha zisebenzisa ama-PCB e-ceramic amancane amancane kumadivayisi afakekayo kanye nemishini yokuxilonga lapho i-biocompatibility kanye nokuzinza kwesikhathi eside kuyizidingo ezibalulekile.

Isiphetho

Ubuchwepheshe be-Multilayer Ceramic PCB buletha ukusebenza okungenakuqhathaniswa kokufunwa kwezinhlelo zokusebenza ze-elekthronikhi ezidinga ukwethembeka okuphezulu, ukuphathwa okushisayo okuphakeme, nezici ezinhle kakhulu zamafrikhwensi aphezulu. Inhlanganisela yamandla omzila wezinhlangothi ezintathu, izakhiwo zikagesi ezizinzile, kanye nesakhiwo esiqinile semishini kwenza lezi zisekelo zibaluleke kakhulu ku-aerospace, izimoto, kanye nezinhlelo zokuxhumana ngocingo.

I-Highleap Electronics igxile ekukhiqizeni ama-PCB e-ceramic anezingqimba eziningi esebenzisa izinqubo ze -LTCC kanye ne-HTCC , ihlinzeka ngezixazululo eziphelele kusukela ekubonisaneni kokuqala kokuklama ngokusebenzisa ukwenziwa kwama-prototype kanye nokukhiqizwa kwevolumu. Ithimba lethu lobunjiniyela lenza ngcono ukucushwa kwe-stack-up, likhetha izinto ezifanele, futhi liqinisekisa ukukhiqizwa kwemiklamo eyinkimbinkimbi ye-multilayer. Xhumana neqembu lethu lobunjiniyela bezinhlelo zokusebenza ukuze uhlole ukuthi ubuchwepheshe be-substrate ye-ceramic enezingqimba eziningi bungathuthukisa kanjani izinhlelo zakho ze-elekthronikhi zesizukulwane esilandelayo.