I-Metal Core PCB

I-Metal Core Printed Circuit Board (MCPCB), ebizwa nangokuthi i-Insulated Metal Substrate (IMS) PCB noma i-thermal PCB,

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metal core pcb gallery
isakhiwo esiyisisekelo metal core pcb

Isakhiwo Esiyisisekelo se-MCPCB sihlanganisa:

  • Isendlalelo semaski solder
  • Isendlalelo sesiyingi
  • Isendlalelo sethusi 1oz. kwe 6oz. (okuvame ukusetshenziswa kakhulu yi-1oz. kuya ku-2oz.)
  • Isendlalelo se-Dielectric
  • Isendlalelo se-Metal core - i-heatsink noma isisakazi sokushisa

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Iyini i-Metal Core PCB(MCPCB)?

I-Metal Core Printed Circuit Board (MCPCB), ebizwa nangokuthi i-insulated metal substrate (IMS) PCB noma i-thermal PCB, iwuhlobo lwebhodi lesifunda elisebenzisa into yensimbi njengesisekelo salo sokukhipha ukushisa, ngokungafani nama-PCB endabuko e-FR4. Ama-MCPCB aklanyelwe ukudlulisa kahle ukushisa okukhiqizwa izingxenye ze-elekthronikhi phakathi nokusebenza ezindaweni ezingabalulekile kangako, njengamaheatsink ensimbi noma ingqikithi yensimbi ngokwayo.

I-MCPCB ngokuvamile iqukethe izendlalelo ezintathu: isendlalelo se-conductive, isendlalelo se-thermal insulation, kanye nesendlalelo sensimbi engaphansi. Lokhu kwakhiwa kuvumela ukuphathwa kokushisa okuphumelelayo, ukuqinisekisa ukwethembeka nokuphila isikhathi eside kwamadivayisi kagesi, ikakhulukazi ezinhlelweni zamandla aphezulu ezifana nezibani ze-LED namandla kagesi.

Izinhlobo ze-Metal Core PCB

Ngokusho kwe-substrate material

Ukukhethwa kwezinto eziyisisekelo kuncike ezidingweni ezithile zohlelo lokusebenza, izici zokulinganisa ezifana ne-thermal conductivity, rigidity, kanye nezindleko.

Izinsimbi ezisetshenziswa kakhulu ekukhiqizeni i-MCPCB zifaka i-aluminium, ithusi, nama-alloys ensimbi:

  • Aluminum: Yaziwa ngamakhono ayo amahle kakhulu okudlulisa ukushisa namandla okulahla, i-aluminium ingabizi kakhulu, okuyenza ibe ukukhetha ukonga kakhulu kuma-MCPCB.
  • Copper: Ngenkathi ihlinzeka ngokusebenza okushisayo okuphezulu, ithusi libiza kakhulu kune-aluminium.
  • Insimbi: Itholakala ngezinhlobonhlobo ezivamile nezingenasici, insimbi ilukhuni kune-aluminium nethusi kodwa inomoya ophansi wokushisa.

Ngokusho kwe-Structure and Layers of Metal core PCB

ungqimba olulodwa-isakhiwo se-MCPCB
uhlaka lwe-MCPCB lwezingqimba ezimbili
Uhlaka lwe-MCPCB oluhlangothini olukabili
uhlaka lwe-MCPCB lwezingqimba eziningi

I-MCPCB Yesendlalelo Esilodwa

I-Double Layer MCPCB

I-Double Side MCPCB

I-MCPCB Yezingqimba Eziningi

Izinzuzo ze-Metal Core PCB(MCPCB)

  • I-Superior Heat Dissipation: Ama-MCPCB asebenzisa izinsimbi ezifana ne-aluminium noma ithusi, ehlinzeka nge-thermal conductivity enhle kakhulu. Lesi sici sinika amandla ukuphathwa kokushisa okuphumelelayo ezinhlelweni zokusebenza zamandla aphezulu, sehlisa kakhulu izinga lokushisa lokusebenza lezingxenye futhi sithuthukise ukwethembeka kwesistimu nempilo yokuphila. Isibonelo, ama-MCPCB angadlulisela ukushisa ngokushesha izikhathi eziyisi-8 kuye kweziyi-9 kunama-FR4 PCB omdabu.
  • Isidingo Esincishisiwe sama-Heatsink: Ngokungafani nama-FR4 PCBs, adinga izingxenyekazi zekhompuyutha ezingeziwe zokupholisa ngenxa yokushisa kwazo okuphansi, ama-MCPCB angakwazi ukuqeda ukushisa ngokwawo. Lokhu kunciphisa usayizi wesistimu jikelele nobunkimbinkimbi ngokususa ama-heatsink amakhulu.
  • Ukuqina namandla: I-Aluminium, i-substrate evamile yama-MCPCBs, inikeza amandla aphezulu nokuqina uma kuqhathaniswa nezinto ezifana ne-ceramics ne-fiberglass. Lokhu kuqina kunciphisa ubungozi bokulimala ngesikhathi sokukhiqiza, ukuhlanganisa, nokusebenza okuvamile, kuqinisekisa ukusebenza okuhlala isikhathi eside.
  • Ukuzinza kweDimensional: Ama-MCPCB abonisa ukuzinza okukhulu kobukhulu uma engaphansi kokuhlukahluka kwezinga lokushisa. Bahlangabezana nezinguquko zosayizi omncane (ngokuvamile u-2.5% ukuya ku-3.0%) ebangeni lokushisa eliphakathi kuka-30°C kuya ku-150°C, okuqinisekisa ukusebenza okungaguquguquki ezimweni ezihlukahlukene zemvelo.
  • Isisindo Esilula kanye Nokusebenziseka Kabusha Okuphakeme: Ama-MCPCB alula kunama-PCB endabuko, awenza kube lula ukuwaphatha nokuwafaka. Ukwengeza, i-aluminiyamu iyakwazi ukugaywa kabusha futhi ayinabo ubuthi, okunomthelela emikhubeni evikela imvelo. Lesi sici futhi senza i-aluminium ibe enye indlela engabizi kakhulu kunezinye izinto zokwakha.
  • Ukuphila Okude: Amandla nokuqina kwe-aluminium akugcini nje ngokuthuthukisa ukuqina kwe-MCPCBs kodwa futhi kunomthelela empilweni ende yokusebenza. Lokhu kunciphisa izindleko zokunakekela kanye nesidingo sokushintshwa, okwenza ama-MCPCB abe utshalomali oluhlakaniphile mayelana nokuphila isikhathi eside.

I-Metal Core PCB Manufacturing Process

Inqubo yokukhiqiza yama-Metal Core PCBs (MCPCBs) ibandakanya izinyathelo ezimbalwa ezikhethekile ngenxa yokuba khona kongqimba lwensimbi kusitaki.

  1. Amabhodi Ongqimba Olulodwa: Kuma-MCPCB ongqimba olulodwa angenakho ukuguqulwa kwesendlalelo, inqubo ifana neyamabhodi endabuko e-FR4. Isendlalelo se-dielectric sicindezelwe futhi sihlanganiswe ngqo epuleti lensimbi, siqinisekisa ukunamathela okusebenzayo.

  2. Izitaki eziningi: Kuma-MCPCB anezingqimba eziningi, inqubo iqala ngokubhoboza umongo wensimbi. Lokhu kubalulekile ukuze kuvunyelwe ukuguqulwa kwesendlalelo ngaphandle kokufaka engcupheni amasekhethi amafushane. Izinyathelo ezilandelayo zichaza inqubo:

    • Drilling: Izimbobo ezinkulu kancane zibhodlozwa kungqimba lwensimbi ukuze kufakwe izinto zokuvikela.
    • Iyaxhuma: Lezi zimbobo zigcwaliswa ngejeli ye-insulating, eselapheka futhi iqiniswe. Lesi sinyathelo sibalulekile ekulungiseleleni indawo yokucwecwa ngethusi.
    • Ukupenda: Uma ijeli isibekiwe, izimbobo ezibhoboziwe zimbozwa ngethusi, okufana nama-vias ajwayelekile kuma-PCB endabuko.
    • Ukubambisana: Izendlalelo ezisele ze-dielectric zibe sezicindezelwa futhi ziboshwe kungqimba lwensimbi.
    • Ukubhoboza Ngembobo: Ngemuva kokuthi isitaki sesiqediwe, izimbobo zibhobozwa kuwo wonke umhlangano, kulandelwa izinqubo ezengeziwe zokucwenga nokuhlanza.