Njengebhodi yeglasi yefayibha, i-aluminium substrate yinto eqhelekileyo ye-PCB. Umahluko kukuba conductivity wobushushu ye-aluminiyam zeendawana kakhulu ephezulu ngaphezu koko beplanga ifayibha iglasi, ngoko isikakhulu asetyenziswe kumacandelo amandla kunye nezinye izihlandlo ezithandwa ubushushu, ezifana LED ukukhanyisa, sokuyivula namandla drives.Here, i  pcb ekhokelwe ngealuminium ukuxelela ukuba yintoni umahluko phakathi kwe-aluminium substrate kunye ne-fiberglass.

Umahluko phakathi kwe-aluminium substrate kunye ne-fiberglass

I-Aluminium kunye neFiberglass iFiberglass yeyona ndawo isetyenziswa kakhulu kwiibhodi zesekethe, ezinje ngephepha leFR4 eliqhelekileyo elisetyenziselwa ifayibha yeglasi njenge-substrate, emva kokuba umphezulu wobhedu uqhotyoshelwe ekubunjweni kwepleyiti enxibe ubhedu, emva kothotho yokwenza kwakhona ukwenza ibhodi yesekethe eprintiweyo.

Iibhodi zefayibha yeglasi zilungiswe ngebhodi yeglasi yefayibha nge-binder, edla ngokuba luhlobo lwebhodi yentsimbi.Ibhodi ye-fiberglass ngokwayo igqunyiwe kwaye inezinto ezithile ezirhabaxa zedangatye, kodwa ukuqhuba kwayo ngobushushu akuhambanga kakuhle. Ingxaki yokuhanjiswa kwe-thermal kwebhodi yeglasi yefayibha, inxenye yamacandelo aneemfuno zokunyanzeliswa kobushushu ngokubanzi amkele indlela yokuhambisa ubushushu ngemingxunya.Ngoko emva kokuntywila kobushushu bokuntywila kobushushu.

Kodwa i-LED, ayizukunxibelelana ngokuthe ngqo nesinki yokufudumeza ukushenxisa ubushushu.Ukuba umngxuma usetyenziselwa ukuhambisa ubushushu, isiphumo sikude ngokwaneleyo, ke i-LED ngokubanzi isebenzisa i-aluminium substrate njengezinto zebhodi yesekethe.

Ubume be-aluminium substrate buyafana nakwipleyiti ye-fiberglass, ngaphandle kokuba ifayibha yeglasi ithathelwe indawo yi-aluminium, kuba i-aluminium ngokwayo iyaqhuba, ukuba i-aluminium yambathiswe ngqo ngobhedu, iya kubangela isekethe emfutshane. isibophelelo kwi-substrate ye-aluminium ukongeza kwizinto zokubopha, kodwa kunye nezinto zokugquma phakathi kobhedu kunye nealuminium ipleyiti. Ubungqingqwa bebinder buya kuba nefuthe elithile ekubambeni ipleyiti, ukwambathisa okubhityileyo kakhulu akulunganga, nako Ukutyeba kuya kuchaphazela ukuqhuba kobushushu.

Nokuba i-aluminium substrate yesibane se-LED iyaqhuba

Njengoko kunokubonwa kulwakhiwo lwe-aluminium substrate apha ngasentla, nangona izinto zealuminium ziqhuba, ubushushu phakathi kwefoyile yobhedu kunye nezinto zealuminium zenziwa yintsimbi, ke, ifoyile yobhedu ngaphambili isetyenziswa njengesekethe eqhubayo, kwaye ialuminiyam ngasemva isetyenziswa njengesixhobo sokuhambisa ubushushu, ngenxa yoko ayinxibelelaniswa nefoyile yobhedu ngaphambili.

I-aluminium igqunyiwe ukusuka kwifoyile yobhedu ngentsalela, kodwa ine-voltage range.Ukongeza kwi-substrate ye-aluminium, kukho ukuhambisa okuphezulu kwe-thermal kwe-substrate yobhedu, le plate isetyenziswa ngokubanzi kumandla ombane, iindleko zayo iphezulu kakhulu kune-substrate ye-aluminium.

Oku kungasentla kuququzelelwe kwaye kwapapashwa ngabathengisi be-pcb ye-aluminium ye-LED. Ukuba awuqondi ".