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Metal Core PCB, MCPCB, Thermal Conductive PCB Material Guide

I-Metal Core Printed Circuit Boards (MCPCBs)

Sawubona, wamukelekile ezweni elithakazelisayo lamabhodi e -Metal Core Printed Circuit Boards (MCPCBs) ! Ama-PCB ajwayelekile asebenzisa i- FR4 dielectric core, kodwa ama-MCPCB ahlukile. Asebenzisa i- substrate yensimbi , njenge-aluminium, ithusi, noma i-iron alloys, njengengqimba ephakathi. Lesi sakhiwo esikhethekile sivumela ama-MCPCB ukuthi asuse ukushisa okukhiqizwa yizingxenye ze-elekthronikhi ezinamandla aphezulu kahle, ngakho-ke abaluleke kakhulu ezindaweni ezidinga ukuphathwa kokushisa okuthuthukisiwe!

Encazelweni enemininingwane elandelayo, sizokhuluma ngezinto eziyisisekelo zensimbi ezahlukahlukene ezisetshenziswa kuma-MCPCB, siqhathanise izici zabo, futhi sibone ukuthi yiziphi izinzuzo abanazo. Futhi, sizokhuluma ngezinqubo zabo zokukhiqiza, izinhlelo zokusebenza ezithile, kanye nendlela yokukhetha ama-MCCBB alungile ephrojekthi yakho.

Ukuqonda Izinto Ezibalulekile

I-Aluminium Core MCPCB

I-Aluminium ivelele njengezinto eziyinhloko ezivame kakhulu ezisetshenziswa kuma-MCPCB ngenxa yokulinganisela kwayo kokushisa, ukusebenza kahle kwezindleko , kanye nokukhiqizwa kwayo.

Izakhiwo

Ukusebenza Okushisayo: 130W/mK
I-Coefficient of Thermal Expansion (CTE): 23ppm/°C
Ubuningi: 2.7 g / cm³
Amandla Okushisa Athize: 0.9 J/g°C

Izimfanelo Ezibalulekile

Ukukhipha ukushisa okuhle kakhulu
Ilula futhi iyasebenziseka kabusha
Kulula ukwenza nokushaya ngesibhakela
Ibiza kakhulu futhi itholakala kabanzi

Ibanga Lokuqina Elijwayelekile

0.5mm kuya ku-6mm (okujwayelekile okungu-1mm kuya ku-2mm)

Izicelo

I-Copper Core MCPCB

I-Copper inikeza i-thermal conductivity engenakuqhathaniswa, okuyenza ilungele ukufuna izicelo ezishisayo lapho ukuchithwa kokushisa kubalulekile.

Izakhiwo

Ukusebenza Okushisayo: 400W/mK
I-CTE: 17ppm/°C
Ubuningi: 8.9 g / cm³
Amandla Okushisa Athize: 0.39 J/g°C

Izinzuzo

I-thermal conductivity engavamile
Ihambisana nezinqubo ezijwayelekile ze-PCB
Ingasetshenziswa nge-solder yokushisa ephezulu

Ibanga Lokuqina Elijwayelekile

0.25mm kuya ku-4mm (okujwayelekile okungu-0.5mm kuya ku-2mm)

Izicelo

Ukukhanyisa kwe-LED okunamandla aphezulu
Izikhulisamandla ze-RF
Amamojula wamandla
Amasistimu ekhompyutha aminyana kakhulu

I-Iron Alloy Core MCPCB

Ama-aloyi ensimbi anikeza ibhalansi phakathi kwezindleko nokusebenza okushisayo, okuhlinzeka ngenye indlela esebenzayo ku-aluminium nethusi.

Izakhiwo

Ukusebenza Okushisayo: Kufika ku-65 W/mK
I-CTE: 10-15 ppm/°C
Ubuningi: 7-8 g/cm³
Amandla Okushisa Athize: 0.44-0.46 J/g°C

Izinzuzo

Ukwenziwa ngcono kwe-thermal phezu kwe-aluminium
Ithengeka kakhulu kunethusi
Amandla aphezulu ebukhulu obuncane

Ibanga Lokuqina Elijwayelekile

0.1mm kuya ku-3mm (okujwayelekile okungu-0.2mm kuya ku-0.5mm)

Izicelo

ukukhanyisa LED
I-elekthronikhi yezimboni
Amasistimu e-Telecom
Izithuthi

Ukuqhathanisa Metal Core PCB Materials

Ukuqhathanisa izakhiwo ezibalulekile zezinto eziyinhloko ze-PCB zensimbi:

Imihlahlandlela Yokukhetha Okubalulekile

I-aluminium: Kuhle kakhulu ezinhlelweni ezishayelwa yizindleko ezidinga ukushintshwa kwe-thermal ngaphezu kuka-130 W/mK.
Copper: Ilungele izinhlelo zokusebenza lapho ukuchithwa kokushisa okuphezulu kubalulekile.
I-Iron Alloy: Ifanele izinhlelo zokusebenza ezinesisindo nezindleko ezidinga ukusebenza okushisayo okuphezulu kune-aluminium.

I-Metal Core PCB

Ukucatshangwa Kwedizayini Ye-Metal Core PCBs (MCPCBs)

Ukusebenza nokuthembeka kwama-Metal Core PCB kuncike ekucatshangelweni ngokucophelela kwezinto ezimbalwa zokuklama:

Ukunwetshwa Okushisayo

I-coefficient of thermal expansion (CTE) imelela izinga into enwebekayo noma efinyezwa ngayo ngenxa yokushintsha kwezinga lokushisa. Kuma-MCPCB, ama-CTE angafani phakathi kwengqikithi yensimbi nezinye izendlalelo angaholela ezinkingeni zesakhiwo:

Ukukhetha Okubalulekile: Khetha materials nama-CTE ahambisanayo ukuze kuncishiswe ingcindezi phakathi kwezingqimba ngesikhathi sokuhamba ngebhayisikili okushisayo.
Ukuphathwa kwe-CTE: Sebenzisa amasu okusiza okushisayo futhi ulungise ukujiya kwezingqimba ukuze unciphise ingcindezi.
Inqubo ye-Lamination: Lungiselela inqubo ye-lamination ukuze ibophe izingqimba ngokuqinile, ukuvimbela ukubola.

Ukuqhuba Ukushisa

Umsebenzi oyinhloko wama-MCPCB ukuqeda ukushisa ngendlela efanele, ngale ndlela:

Okokubalulekile Khetha izinsimbi ezifana ne-aluminium noma ithusi ukuze uthole ukuhanjiswa kwazo okushisayo okuphezulu.
Isendlalelo Sokuvikela: Sebenzisa izinto ze-dielectric ezine-conductivity ephezulu ye-thermal ukuze uhlanganise umgogodla wensimbi kanye nezendlalelo zesekhethi.
Imikhondo yethusi: Khulisa ukushuba kokulandelela ukuze uthuthukise ukuhlakazeka okushisayo ngenkathi ugcina ubuqotho bukagesi.

Idizayini kagesi

Idizayini yesekethe inomthelela kukho kokubili ukuphatha okushisayo nokusebenza kukagesi:

Landelela Ububanzi Nezikhala: Lungiselela ububanzi bokulandelela nesikhala ngokusekelwe ezidingweni eziphethe njengamanje ukuze unciphise ukumelana.
Ngedizayini: Sebenzisa i-thermal vias ukusiza ukudluliswa kokushisa phakathi kwezendlalelo.
Ukulawula Impedance: Qinisekisa ukufaniswa kwe-impedance kuzinhlelo zokusebenza zefrikhwensi ephezulu ukuze uvimbele ukuwohloka kwesignali.

I-Mechanical Design

Izakhiwo zemishini ze-MCPCB zinethonya ekuzinzeni kwazo kwesakhiwo nokufaneleka kwezinhlelo zokusebenza ezithile:

Ubukhulu obukhulu: Khetha ubukhulu obufanele bomgogodla ukuze ulinganise ukuchithwa kokushisa namandla emishini.
Ukukhweza Ingxenye: Cabangela isakhiwo se I-Surface-Mount Technology (SMT) kanye nezingxenye ze-Threth-Hole Technology (THT), eziqinisekisa ukwesekwa okufanele kwe-thermal kanye nemishini.
Uhlaka Lwebhodi: Isici kusayizi jikelele we-PCB nokuma ukuze kuqinisekiswe ukuthi ilingana phakathi kwezingqinamba zokwakheka komshini womkhiqizo.

Kafushane, idizayini esebenzayo ye-MCPCBs idinga indlela eguquguqukayo evumelanisa izakhiwo ezishisayo, zikagesi, nezomshini, iqinisekisa ukuthi i-PCB ingakwazi ukuhlangabezana nezimfuneko zokusebenza, ukuqina, nokwethembeka kohlelo lokusebenza.

Cela i-PCB Assembly Quote Manje

Izixazululo Ezingabizi kakhulu zama-Metal PCBs Ekwenziweni kwe-LED

Njengomkhiqizi womkhiqizo we-elekthronikhi we-LED, ukwehlisa izindleko ze-PCB zensimbi kubalulekile ekugcineni ukuncintisana ngenkathi kuqinisekiswa ikhwalithi. Nawa amasu amaningana ongawasebenzisa:

1. Ukuthuthukisa Izinto
Ukukhethwa Kwezinto Ezibalulekile: Khetha i-aluminium kunethusi njengoba ngokuvamile iyonga kakhulu futhi isebenza ngokwanele ekulahleni ukushisa ezinhlelweni eziningi ze-LED.
Isendlalelo se-Dielectric: Sebenzisa izendlalelo ze-dielectric conductive thermally ezinikezela ngokudluliswa kokushisa okungcono kakhulu ngezindleko eziphansi.

2. Ukuthuthukisa Idizayini
Ukubalwa Kwesendlalelo: Nciphisa inani lezendlalelo ekwakhiweni kwe-PCB ngaphandle kokufaka engozini ukusebenza okushisayo nogesi.
Ukuthuthukisa Ukulandelela: Umzila wokulandelela ophumelelayo wehlisa ukusetshenziswa kwezinto. Lokhu kubandakanya ukunciphisa ubude bokulandelela kanye nobubanzi lapho kungenzeka khona.
Ukuma: Dizayina ama-PCB ukuze asebenzise ubukhulu obujwayelekile nezici, wehlise izindleko zokwenza ngokwezifiso.

3. Ukusebenza Ngempumelelo Kwezokukhiqiza
Iphaneli: Dizayina ama-PCB ukuze uthuthukise ukusetshenziswa kwephaneli, wandise inani lamabhodi iphaneli ngayinye.
Ukukhiqizwa Kweqoqo: Khiqiza ngamaqoqo amakhulu ukuze uzuze kumnotho wesilinganiso ekuthengeni okubalulekile nezindleko zokusetha zokukhiqiza.

4. Ukuphathwa Kwabahlinzeki
Ukukhethwa Komhlinzeki: Sebenzisana nabahlinzeki abasebenza ngokukhethekile kuma-PCB angumongo wensimbi futhi abanamanani ancintisanayo, okungenzeka abe sezifundeni ezinezindleko eziphansi zabasebenzi.
Izinkontileka Zesikhathi Eside: Xoxisana ngezinkontileka zesikhathi eside ukuze ukhiye amanani avumayo futhi uqinisekise uchungechunge lokuhlinzeka olungaguquki.

5. Inqubo Yomhlangano
I-Automation: Yenza ngokuzenzakalela izinqubo zokuhlanganisa ukuze unciphise izindleko zabasebenzi futhi andise umsebenzi.
I-Surface Finish: Sebenzisa iziqephu zangaphezulu ezingabizi njenge-HASL esikhundleni sezinketho ezibiza kakhulu njenge-ENIG, inqobo nje uma ihlangabezana nezidingo zomkhiqizo wakho.

6. Ukuhlola Nokulawula Ikhwalithi
Ukwehliswa kokuhlola: Yehlisa izindleko zokulawula ikhwalithi ngokuthuthukisa izinqubo zokuhlola ukuze ubambe amaphutha kusenesikhathi, unciphise ucezu nokusebenza kabusha.
Lawa maqhinga kufanele akusize uzuze ukuncipha kwezindleko kuma-PCB angumongo wensimbi kuyilapho ugcina ukusebenza okudingekayo kumikhiqizo yakho ye-LED.

Isiphetho

Ama-Metal core PCB amele intuthuko enkulu kubuchwepheshe be-PCB, ehlinzeka ngokuphathwa okushisayo okuthuthukisiwe, ukwethembeka kanye nokusebenza kwemishini yesimanje kagesi. Njengoba isidingo sama-elekthronikhi asebenza kahle kakhulu futhi ahlangene sikhula, indima yama-MCPCB izobaluleka kakhulu.

Amandla azo okuhlakaza kahle ukushisa futhi anikeze ukuxhumana okuthembekile kukagesi awenza abaluleke kakhulu ezinhlelweni ezifana nezimoto, i-aerospace kanye nezibani ze-LED. Njengoba siqhubeka nokuphusha imingcele yobuchwepheshe, i-MCPCB izothuthuka ukuze ihlangabezane nezidingo ezikhulayo zomhlaba wezogesi. Ngakho-ke noma inika amandla i-smartphone yakho esesitayeleni noma amasekhethi ayinkimbinkimbi ashayela amasathelayithi akho, khumbula ukuthi ama-MCPCB awumgogodla wesizukulwane esilandelayo samadivayisi kagesi, aqinisekisa ukuthi asebenza kahle kunoma iyiphi indawo.

Cela i-PCB Assembly Quote Manje

I-FQA

1.Yini ehlukanisa i-Metal Core PCBs (MCPCBs) kuma-FR4 PCB endabuko?

Ama-Metal Core PCB asebenzisa i-substrate yensimbi, efana ne-aluminium, ithusi, noma ingxubevange yensimbi, njengesendlalelo esimaphakathi, kuyilapho ama-FR4 PCB endabuko esebenzisa i-FR4 dielectric core. Lesi sakhiwo esiyingqayizivele senza ama-MCPCB akwazi ukuhlakaza kahle ukushisa okukhiqizwa izingxenye ze-elekthronikhi ezinamandla amakhulu, okuzenza zibaluleke ezinhlelweni ezidinga ukuphathwa okushisayo okuthuthukisiwe.

2.Iziphi izinzuzo ezibalulekile zokusebenzisa i-Copper Core MCPCBs?

I-Copper Core MCPCBs inikezela nge-thermal conductivity ehlukile, ene-thermal conductivity engu-400 W/mK. Lokhu kuzenza zilungele izinhlelo zokusebenza ezishisayo lapho ukukhishwa okukhulu kokushisa kubaluleke kakhulu, njengokukhanyisa kwe-LED okunamandla amakhulu nezikhulisamandla ze-RF.

3.Iziqondiso zokukhetha izinto zisiza kanjani ekukhetheni ama-MCPCB alungile ezinhlelo zokusebenza ezithile?

Imihlahlandlela yokukhetha okokusebenza ihlinzeka ngemininingwane ebalulekile ekukhetheni i-MCPCB efaneleke kakhulu yohlelo lokusebenza oluthile olususelwe ezintweni ezifana nokuqhutshwa kokushisa, izindleko, kanye nezimfuneko zokusebenza. Isibonelo, ama-MCPCB e-aluminium angcono kakhulu kuzinhlelo zokusebenza ezishayelwa izindleko ezidinga ukuqhutshwa kwe-thermal ngaphezu kuka-130 W/mK, kuyilapho i-MCPCB yethusi ihamba phambili ezinhlelweni zokusebenza lapho ukuchithwa kokushisa okuphezulu kubaluleke kakhulu.

4.Yikuphi ukucatshangelwa kokuklama okubalulekile ekuqinisekiseni ukusebenza nokuthembeka kwama-Metal Core PCB?

Ukucatshangelwa kokuklama okufana nokuphatha ukunwetshwa kwe-thermal, ukwenza ngcono ukuqhutshwa kwe-thermal, ukuqinisekisa ukuklama okufanele kukagesi, nokucabangela izakhiwo zemishini kubalulekile ekukhuliseni ukusebenza nokuthembeka kwe-Metal Core PCBs. Lezi zici ziqinisekisa ukuthi i-PCB ingakwazi ukuqeda ukushisa ngempumelelo, igcine ubuqotho bukagesi, futhi imelane nezingcindezi zemishini ekusetshenzisweni kwayo okuhlosiwe.

5.Yimaphi amasu angabizi kakhulu abakhiqizi bemikhiqizo ye-elekthronikhi ye-LED abangawaqasha ukuze banciphise izindleko ze-PCB zensimbi?

Abakhiqizi bemikhiqizo ye-elekthronikhi ye-LED bangasebenzisa amasu ahlukahlukene angabizi kakhulu, okuhlanganisa nokwenza kahle izinto, ukwenziwa ngcono kwedizayini, ukuthuthukiswa kokusebenza kahle kokukhiqiza, ukuphathwa kwabahlinzeki, ukuthuthukiswa kwenqubo yokuhlanganisa, nokuhlola nokuthuthukiswa kokulawula ikhwalithi. Lawa masu asiza ukunciphisa izindleko ngenkathi kugcinwa ukusebenza okudingekayo emikhiqizweni ye-LED, kuqinisekiswe ukuncintisana emakethe.

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