I-aluminium substrate iyi-laminate egqoke ithusi esekelwe ensimbi enomsebenzi omuhle wokulahla ukushisa. Kuyinto enjengepuleti eyenziwe ngendwangu ye-electronic glass fiber cloth noma ezinye izinto eziqinisayo ezifakwe inhlaka, i-resin eyodwa, njll. njengongqimba olunamathelayo oluvikelayo, olumbozwe nge-foil yethusi ohlangothini olulodwa noma zombili futhi icindezelwe okushisayo, okubizwa ngokuthi i-aluminium- ipuleti le-copper-clad elisekelwe . I-Kangxin Circuit yethula ukusebenza kwe-aluminium substrate kanye nokwelashwa okungaphezulu kwezinto.
Ukusebenza kwe-aluminium substrate
1.Ukusebenza okuhle kakhulu kokukhipha ukushisa
Amapuleti e-aluminium asekelwe ngethusi anokusebenza okuhle kakhulu kokukhipha ukushisa, okuyisici esivelele kakhulu salolu hlobo lwepuleti. I-PCB eyenziwe ngayo ayikwazi ukuvimbela ngokuphumelelayo izinga lokushisa elisebenzayo lezingxenye kanye nama-substrates alayishwe kuwo ekukhuphukeni, kodwa futhi nokushisa okusheshayo okukhiqizwa izingxenye ze-amplifier zamandla, izingxenye zamandla aphezulu, ukushintshwa kwamandla wesekethe enkulu nezinye izingxenye. Iphinde isatshalaliswe ngenxa yokuminyana kwayo okuncane, isisindo esilula (2.7g/cm3), i-anti-oxidation, kanye nentengo eshibhile, ngakho-ke isibe yisamba esiguquguqukayo kakhulu nenani elikhulu leshidi eliyinhlanganisela kuma-laminates enziwe ngethusi enziwe ngensimbi. Ukumelana nokushisa okugcwele kwe-substrate ye-aluminium evalekile kungu-1.10℃/W futhi ukumelana nokushisa kungu-2.8℃/W, okuthuthukisa kakhulu amandla okuhlangana kocingo lwethusi.
2.Thuthukisa ukusebenza kahle kanye nekhwalithi yomshini
Ama-laminates agqoke ithusi asekelwe ku-aluminium anamandla amakhulu emishini kanye nokuqina, okungcono kakhulu kune-resin eqinile ehlanganiswe ne-copper-clad laminates kanye ne-ceramic substrates. Iyakwazi ukubona ukwakhiwa kwamabhodi aphrintiwe endaweni enkulu kuma-substrates ensimbi, futhi ifaneleka ngokukhethekile ukukhweza izingxenye ezisindayo kulawo ma-substrates. Ngaphezu kwalokho, i-aluminium substrate nayo inobucwebe obuhle, futhi ingaqoqwa futhi icutshungulwe ku-substrate ngokushaya ngesando, i-riveting, njll. i-laminate ene-copper esekelwe esekelwe ayikwazi.
3.Ukuzinza okuphezulu kwe-dimensional
Ukuze ahlukahlukene zethusi clad laminates, kunenkinga ukunwetshwa ezishisayo (ukuqina dimensional), ikakhulukazi ukunwetshwa ezishisayo in ukushuba isiqondiso (Z-eksisi) ibhodi, okuthinta izinga izimbobo metallized kanye izintambo. Isizathu esiyinhloko ukuthi ama-coefficients okunwetshwa komugqa wamapuleti ahlukile, njengethusi, futhi i-coefficient yokwandisa eqondile ye-epoxy glass fiber cloth substrate ingu-3. Ukwandiswa komugqa kokubili kuhluke kakhulu, okulula ukubangela umehluko ekwandiseni okushisayo kwe-substrate, okubangela ukuthi isekethe yethusi kanye nembobo yensimbi iphuke noma yonakaliswe. I-coefficient yomugqa yokwandisa ye-aluminium substrate iphakathi, incane kakhulu kune-resin substrate evamile, futhi iseduze ne-coefficient yomugqa yokwandisa yethusi, evumelana nokuqinisekisa ikhwalithi nokuthembeka kwesekethe ephrintiwe.
Ukwelashwa okungaphezulu kwe-aluminium substrate material
1. Ukwehlisa
Ingaphezulu lepuleti elisekelwe ku-aluminium limbozwe ungqimba lwamafutha ngesikhathi sokucubungula nokuthutha, futhi kufanele lihlanzwe ngaphambi kokusetshenziswa. Umgomo ukusebenzisa uphethiloli (uphethiloli wendiza evamile) njenge-solvent, engancibilika, bese usebenzisa i-ejenti yokuhlanza encibilika emanzini ukuze isuse amabala kawoyela. Hlanza indawo ngamanzi agobhozayo ukuze ihlanzeke futhi ingabi namaconsi amanzi.
2. Nciphisa amafutha
I-aluminium substrate ngemva kokwelashwa okungenhla isenawo amafutha angakhishiwe phezulu. Ukuze uyisuse ngokuphelele, cwilisa nge-alkali sodium hydroxide eqinile ku-50°C imizuzu engu-5, bese ugeza ngamanzi ahlanzekile.
3. Ukufakwa kwe-alkaline. Ingaphezulu lepuleti le-aluminium njengento eyisisekelo kufanele ibe nobulukhuni obuthile. Njengoba i-aluminium substrate kanye nongqimba lwefilimu ye-aluminium oxide ebusweni kokubili kuyizinto ze-amphoteric, ingaphezulu lesisekelo se-aluminium singaqiniswa ngokusebenzisa uhlelo lwesisombululo se-alkali ene-asidi, i-alkaline noma esiyinhlanganisela. Ngaphezu kwalokho, ezinye izinto kanye nezithasiselo zidinga ukwengezwa kwisisombululo esiqinile ukuze kuzuzwe lezi zinhloso ezilandelayo.
4. Ukupholisha ngamakhemikhali (ukucwilisa). Ngenxa yokuthi isisekelo se-aluminium siqukethe ezinye izinsimbi ezingcolile, kulula ukwenza izinhlanganisela ze-inorganic ezinamathela ebusweni be-substrate ngesikhathi senqubo yokuqina, ngakho-ke izinhlanganisela ze-inorganic ezakhiwe phezulu kufanele zihlaziywe. Ngokwemiphumela yokuhlaziya, lungiselela ikhambi elifanelekile lokucwilisa, bese ubeka i-aluminium egayiwe engaphansi kwekhambi lokucwilisa ukuze uqinisekise isikhathi esithile, ukuze ingaphezulu lepuleti le-aluminium lihlanzeke futhi licwebezele.