Idizayini yesitaki ye-MCPCB | Ukucushwa Okubalulekile Nokucatshangelwa Kobunjiniyela

Isingeniso

I-MCPCB stack-up imelela isinqumo sobunjiniyela esibalulekile ekusetshenzisweni kokuphathwa kokushisa, esinquma kokubili ukusebenza kahle kokushabalalisa ukushisa kanye nokusebenza kukagesi. Njengoba ubuningi bamandla ezinhlelweni ze-elekthronikhi buqhubeka nokukhula, isakhiwo sengqimba ye-PCB yensimbi sithonya ngqo ukuthi ukushisa kudluliselwa kanjani ngempumelelo kusuka ezingxenyeni kuya ezindaweni ezizungezile.

Ukuqonda ukucushwa kwesitaki okuhlukile kwe-MCPCB kwenza onjiniyela bakwazi ukulinganisela izidingo ezishisayo, ukuhlukaniswa kukagesi, kanye nezingqinamba zokukhiqiza. Lokhu kuhlaziywa kobuchwepheshe kuhlola izakhiwo ezihlukene zesakhiwo se-MCPCB, kusukela kusendlalelo esisodwa kuya ekwakhiweni kwezendlalelo eziningi, okuhlinzeka ngemininingwane yobunjiniyela ukuze kukhethwe kahle futhi kusetshenziswe isitaki.

Iyini i-MCPCB Stack-up?

Ukuchaza i-Stack-up Architecture

Isitaki se-MCPCB sisho ukuhlelwa okulandelanayo kwezendlalelo zezinto ezihlanganisa ibhodi lesekethe eliphrintiwe eliwumgogodla wensimbi, elichaza izindlela ezishisayo nezikagesi esakhiweni. Lokhu kulungiselelwa kwezendlalelo kuvame ukuhlanganisa:

• Isendlalelo se-Copper Foil - Yakha ungqimba lwesekethe oluthwala amasignali kagesi bese lusakaza ukushisa eceleni.
• Isendlalelo seDielectric - Inikeza ukufakwa kukagesi ngenkathi ivumela ukudluliswa kokushisa okuqondile okusebenzayo.
• I-Metal Base Substrate - Isebenza njengesisakazi esishisayo kanye nomgogodla oyimishini, ovame ukwenziwa nge-aluminium, ithusi, noma ingxube yensimbi.

Isakhiwo sesitaki sinquma indlela yokumelana nokushisa kusuka ezingxenyeni ezikhiqiza ukushisa ngokusebenzisa imikhondo yethusi, kuyo yonke indawo yokuhlangana kwe-dielectric, ingene kumongo wensimbi, futhi ekugcineni iye kusinki lokushisa noma indawo ezungezile.

Izingxenye Zezinto Ezibalulekile

Isendlalelo ngasinye ku-MCPCB sinikela ngezinto ezihlukile zikagesi, ezishisayo, nezomshini:

• Isendlalelo se-Copper Foil
  • Ubukhulu obujwayelekile: 0.5–10 oz
  • Umsebenzi: Iqhuba amasignali kagesi futhi ihlakaze ukushisa endaweni yonke
• Isendlalelo seDielectric
  • Ubukhulu obujwayelekile: 50–200 µm
  • I-Thermal conductivity: 1–10 W/m·K
  • Umsebenzi: Ihlinzeka ngokuhlukaniswa kukagesi ngenkathi igcina amandla okudlulisa okushisayo
• I-Metal Base Substrate
  • Ubukhulu obujwayelekile: 0.5–3.2 mm
  • Izinto ezijwayelekile: I-aluminium, ithusi, i-Iron alloy
  • Umsebenzi: Isebenza njengesisabalalisi sokushisa esiyinhloko nokusekelwa kwesakhiwo, okuthonya kokubili ukusebenza okushisayo kanye nokuqina kwemishini

Isitaki se-MCPCB yesendlalelo esisodwa

Ukucushwa Okuyisisekelo kanye Nezimpawu

Isitaki se-MCPCB songqimba olulodwa sihlanganisa isendlalelo sesekhethi yethusi eyodwa ehlanganiswe nengxenye yensimbi nge-dielectric eqhuba ukushisa.

• Indlela eshisayo emfishane – Ukugeleza kokushisa okuqondile kusuka ezingxenyeni ezithile kuya esisekelweni sensimbi kunciphisa amazinga okushisa okuhlangana.
• Ukukhiqiza okulula - Ayikho i-vias noma i-multilayer lamination, iqinisekisa ukuthembeka okuphezulu kanye nekhwalithi engaguquki.
• Ukusebenza kahle - Imiklamo elungiselelwe ingafinyelela ukumelana nokushisa okungaphansi kuka-0.5°C/W.
• Ukuzwela kwe-Dielectric - Ukuqina kwesendlalelo kuthinta ngqo kokubili ukumelana nokushisa kanye ne-voltage yokuwohloka.

Lesi sakhiwo esithuthukisiwe senza ama-MCPCB ongqimba olulodwa abe yisixazululo esingabizi kakhulu nesiqinile sezinhlelo zokusebenza zokuphatha okushisayo kwevolumu ephezulu.

Dizayina Amapharamitha kanye Nezicelo

• I-Dielectric conductivity eshisayo – Ivamise ukuba ngu-2–5 W/m·K wezinhlelo zokusebenza ze-LED.
• Ukujiya kwethusi - Kukhethwe ngokusekelwe ezidingweni eziphethe zamanje.
• Ukuqedwa kwendawo - Iqinisekisa i-solderability kanye nokuthembeka kwengxenye yokukhuphuka.
• Ubukhulu be-Dielectric - Ukulinganisa phakathi kokudluliswa kokushisa nokuhlukaniswa kukagesi; ububanzi obujwayelekile 75–100 µm.

Lokhu kulungiselelwa kulungele izinhlelo zokukhanyisa ze-LED, iziguquli zamandla, namadrayivu ezimoto lapho izingxenye zifakwe ohlangothini olulodwa futhi ukuchithwa kokushisa okuphumelelayo kubalulekile.

Isitaki se-MCPCB enezendlalelo ezimbili

Isakhiwo kanye Nokuphathwa Okushisayo

Isitaki se-MCPCB enesendlalelo esikabili sihlanganisa izendlalelo zethusi ezimbili ezihlukaniswe okokusebenza kwe-dielectric, nge-thermal vias ehlinzeka ngemizila yokushisa phakathi kwezendlalelo kanye ne-metal core substrate.

• Izakhiwo zethusi ezimbili – Inika amandla ukukhweza ingxenye nhlangothi zombili ngenkathi igcina ukuhlangana okushisayo kusisekelo sensimbi.
• Okushisayo ngamanethiwekhi – Izinhlaka ezinobubanzi obungu-0.3–0.5 mm nge-vias enobude obungu-1.0–1.5 mm zidala amashaneli okudlulisa ukushisa amile adlula izinto ze-dielectric ezimelana kakhulu.
• Ukuvumelana nezimo komklamo okuthuthukisiwe - Isekela izakhiwo zesekethe eziyinkimbinkimbi uma kuqhathaniswa nokucushwa kwesendlalelo esisodwa.
• Ukumelana nokushisa okumaphakathi Iphakeme kancane kune-MCCBB yongqimba olulodwa ngenxa yezendlalelo ezengeziwe ze-dielectric.

Lesi sitaki sinikeza ibhalansi engokoqobo phakathi kwenkimbinkimbi yesekethe kanye nokusebenza kahle kokuphatha okushisayo kwezinhlelo zokusebenza ezidinga ukuhlanganiswa kwezingxenye ezikabili.

Ama-Trade Trade offs

• Ukulawula ukunweba okushisayo - Ukwandiswa okuhlukile phakathi kwezingqimba zethusi kudinga ukusatshalaliswa kwethusi okulinganiselwe ukuze kuncishiswe i-warpage ngesikhathi sokuhamba ngebhayisikili okushisayo.
• Ngezinto zokugcwalisa – Ukusebenzisa ama-thermal conductive fillers (20–50 W/m·K) kuthuthukisa ukudluliswa kokushisa futhi kuvimbela ukufakwa kwe-solder ngesikhathi sokuhlanganisa.
• Ubunkimbinkimbi bokukhiqiza - Izinyathelo ezengeziwe zokucwasa kanye nokumba zikhulisa izidingo zokunemba kokwenziwa.
• Ukufaneleka kohlelo lokusebenza - Ilungele ukunikezwa kwamandla ngokuhlukaniswa kwe-control circuitry, amamojula ezimoto e-LED anabashayeli abahlanganisiwe, namabhodi okuxhumana e-RF adinga ukuvikelwa kwe-interlayer.

Isitaki se-MCPCB esinezendlalelo ezimbili sinikeza ukusebenza okuthuthukisiwe nokuzinza komshini kuyilapho kugcinwa ukusebenza okushisayo okuqinile kumasistimu kagesi aphakathi nendawo ukuya phezulu.

Isitaki Senqwaba ye-MCPCB

Ukuqaliswa Kwezakhiwo Eziyinkimbinkimbi

Ukufakwa kwe-MCPCB enezingqimba eziningi kudlulela ngale kwezingqimba ezimbili zethusi, kufaka phakathi izingqimba eziningi ze-dielectric kanye nezici zokuphathwa kokushisa okuthuthukisiwe njenge-embedded copper slugs noma amapayipi okushisa ahlanganisiwe.

• Amandla okuxhumana okuminyana okuphezulu - Isekela ama-circuits okulawula ayinkimbinkimbi kanye nemiklamo yesignali exubile ngokusebenzisa izendlalelo eziningi ze-conductive.
• Izakhiwo zokusebenzisa kahle ukushisa - Isebenzisa ukubekwa okukhethiwe kwezindawo ezishisayo nezindawo zokuthululela ithusi ukuze kugcinwe ukuhlangana phakathi kwamandla nokulawula izendlalelo.
• Izidingo zokukhiqiza ezinembayo - Idinga ukubhaliswa okunembile kwesendlalelo phakathi kuka-±50 µm nokuqina kwe-dielectric okungaguquki kuwo wonke amaphaneli amakhulu.
• Ukulawulwa kwe-lamination - Ukunwetshwa kwe-axis ye-Z kanye nokuqondanisa kwezinto ngesikhathi sokucindezela kufanele kulawulwe ngokucophelela ukuvimbela ukuhlukaniswa noma ukungahambi kahle.

Lesi sakhiwo esithuthukisiwe senza ukuhlanganiswa okuphezulu kanye nokuphathwa kokushisa okuphakeme kwama-assemblies e-electronic aminyene.

Izixazululo Ezithuthukisiwe Zokushisa

• Imodeli eshisayo ye-3D - Ihlola kokubili ukushisa okusemaceleni okusabalala ezindizeni zethusi kanye nokuhamba okuqondile ngamanethiwekhi.
• Izendlalelo ezinikezelwe ezishisayo - Inikeza izendlalelo ezithile njengezindiza ezisakaza ukushisa ezinomzila omncane wesignali ukuthuthukisa ukufana kwezinga lokushisa.
• Nge-in-pad ukuhlanganiswa - Ithuthukisa ukuhlangana okushisayo okuqondile kusuka ezingxenyeni ezikhiqiza ukushisa kuya kusisekelo sethusi noma sensimbi.
• Ukwakhiwa kwe-hybrid stack-up - Ihlanganisa izifunda ze-MCPCB ezishisayo nezisezingeni eliphezulu ze-FR-4 zezindleko ezithuthukisiwe kanye nebhalansi yokusebenza.
• Ububanzi bohlelo - Ilungele amabhodi weseva enamandla kakhulu, ama-inverter e-EV, neziteshi ze-telecom base lapho imithwalo eshisayo idlula i-100 W ibhodi ngalinye.

Isitaki se-MCPCB ye-Multilayer simele izinga eliphezulu kakhulu lokuhlanganisa okushisayo nogesi, izimfuneko zokusebenza zokuvala ibhuloho phakathi kwama-MCPCB avamile kanye nezakhiwo ezithuthukisiwe ze-PCB eziyingxubevange.

Ukucatshangelwa Kobunjiniyela Kwedizayini Yesitaki ye-MCPCB

Ukuthuthukiswa Kwendlela Eshisayo

Idizayini esebenzayo yomzila oshisayo kusitaki se-MCPCB idinga ukunciphisa ukumelana nokushisa esibonakalayo ngasinye, kusukela ekuhlanganeni kwengxenye kuya kokunamathiselwe kokugcina kukasinki wokushisa. Onjiniyela kufanele bacabangele okushisayo ngokubeka ngokuqondile ngaphansi kwezingxenye zamandla aphezulu, bathuthukise ngedayamitha kanye nephimbo ukuze uthole ubuningi besiphambano sethusi kuyilapho kugcinwa ubuqotho besakhiwo. Ukusabalala okushisayo kwezendlalelo zethusi kuzuza ekugqineni okukhulu (2-4 oz), nakuba lokhu kufanele kulingane nezimfuneko zesekethe yomugqa ocolekileyo kanye nekhono lokukhiqiza.

Ukuhambisana Kwezinto Ezibalulekile Nokwethenjelwa

I-coefficient of thermal expansion (CTE) ukungafani phakathi kwezinto eziku-MCPCB stack-up idala ingcindezi yokusebenza ngesikhathi sokuhamba kwamabhayisikili, okungase kubangele ukubola noma ukuqhekeka. Ama-Aluminium substrates (CTE: 23 ppm/°C) abhangqwe nama-dielectrics e-FR-4 (CTE: 14-17 ppm/°C) adinga ukucatshangelwa kwedizayini ngokucophelela kumabanga okushisa okusebenza. Amandla okunamathela kwesixhumi esibonakalayo, ahlolwe ngokushaqeka okushisayo nokuhlola isitofu sokucindezela, anquma ukwethembeka kwesikhathi eside ezindaweni ezinokhahlo.

Izithibelo Zenqubo Yokukhiqiza

Idizayini yesitaki ye-MCPCB kufanele ihambisane nemikhawulo yokukhiqiza okuhlanganisa ubuncane bokujiya kwe-dielectric ukuze kufakwe i-pinhole (ngokuvamile ama-micrometer angu-75), izilinganiso zobukhulu be-aspect ratio yama-vias abhonjiwe (8:1 ngezinqubo ezijwayelekile), kanye nokubekezelela ukubhaliswa phakathi kwezendlalelo. Ukukhethwa kokuqedwa kobuso kuthinta kokubili ukuthengiswa nokusebenza kwesixhumi esibonakalayo esishisayo, ne-HASL enikeza ukusebenza kahle kwezindleko kuyilapho i-ENIG inikeza ukucaba okuphakeme kokusebenza kwe-thermal interface. Ukusetshenziswa kwamaphaneli nezindlela zokuhlukanisa kunomthelela ekuthuthukisweni kwezindleko, ikakhulukazi kumadizayini adinga umzila we-substrate yensimbi.

Isiphetho: Ukwakha Isakhiwo Esinokwethenjelwa Esishisayo EsineSitaki Esifanelekile Se-MCPCB

Ukucushwa kwesitaki se-MCPCB kuchaza isisekelo sokusebenza kahle kokushisa, ubuqotho bukagesi, nokuthembeka kwesikhathi eside kumasistimu kagesi kagesi. Kusukela ezakhiweni zongqimba olulodwa ezithuthukiselwe ukudluliswa kokushisa okungabizi kakhulu ukuya ezakhiweni eziyinkimbinkimbi zezendlalelo eziningi ezisekela ukujikeleza okuminyene, umklamo ngamunye kufanele ulinganisele izidingo ezishisayo nezikagesi ngokusekelwe ezidingweni zohlelo lokusebenza. Ukuhlela isitaki okusebenzayo kuqinisekisa ukusebenza okuzinzile ngaphansi kwemithwalo ephezulu yokushisa futhi kwelula ubude besikhathi sokuphila komkhiqizo ezindaweni ezidinga kakhulu.

Kwa- Highleap Electronics , singochwepheshe ekuthuthukiseni nasekukhiqizeni izixazululo ze-MCPCB eziklanywe ngokunemba. Amakhono ethu afaka:

• Comprehensive ukwenziwa ngcono kwedizayini yesitaki usebenzisa advanced sekulingisa ezishisayo amathuluzi.
• Isembozo sephothifoliyo ebanzi i-aluminium, ithusi, nezisekelo zensimbi ezixubile.
• Unembe ukulawulwa kokuqina kwe-dielectric kanye nokuqondanisa kwezendlalelo eziningi zokwakha okunokwethenjelwa okuphezulu.
• Ukuphela kokuphela Ukukhiqiza kwe-MCPCB kanye nezinkonzo zokuhlanganisa ngaphansi kwezinhlelo zekhwalithi eziqinisekisiwe ze-ISO.

Kungakhathaliseki ukuthi uklama izinhlelo ze-LED ezinamandla aphezulu, amamojula okulawula izimoto, noma ihadiwe yokuxhumana ngocingo, i-Highleap Electronics inikeza ukwesekwa kobunjiniyela kanye nobuchwepheshe bokukhiqiza ukuguqula imiqondo yakho yokuklama ukushisa ibe izixazululo ezisebenza kahle kakhulu nezilungele ukukhiqiza. Xhumana nethimba lethu ukuze uxoxe ngezidingo zakho zokuhlanganisa i-MCPCB noma ucele ukubonisana ngobuchwepheshe.