Ingxenye yokuqala: Iyini i-Aluminium PCB?
I-Aluminium substrate iwuhlobo lwebhodi eligqoke ithusi elisekelwe ensimbi elinomsebenzi omuhle kakhulu wokulahla ukushisa.Ngokuvamile, ibhodi elinohlangothi olulodwa lakhiwa izingqimba ezintathu: ungqimba lwesifunda (ucwecwe lwethusi), ungqimba oluvikelayo, kanye nesendlalelo sesisekelo sensimbi.Kuzinhlelo zokusebenza ezisezingeni eliphezulu, kukhona nemiklamo ezinhlangothi ezimbili enesakhiwo sesendlalelo sesifunda, isendlalelo sokuvikela, isisekelo se-aluminium, isendlalelo sokuvikela, kanye nongqimba lwesekethe.Inani elincane lezinhlelo zokusebenza lifaka amabhodi anezingqimba eziningi, angakhiwa ngokuhlanganisa amabhodi anezingqimba eziningi ajwayelekile anezendlalelo ezivikelayo nezisekelo ze-aluminium.
I-aluminium substrate ehlangothini olulodwa: Iqukethe ungqimba olulodwa lwephethini ye-conductive, into evikelayo, nepuleti le-aluminium (i-substrate).
I-aluminium substrate enezinhlangothi ezimbili: Ifaka izendlalelo ezimbili zephethini yokuqhuba, into evikelayo, nepuleti le-aluminium (i-substrate) enqwabelene.
Ibhodi lesifunda le-aluminium eliphrintiwe elinezingqimba eziningi: Kuyibhodi lesifunda eliphrintiwe elenziwe ngokufaka i-laminating kanye nokuhlanganisa izendlalelo ezintathu noma ngaphezulu zephethini ye-conductive layer, impahla evikelayo, nepuleti le-aluminium (i-substrate) ndawonye.
Ihlukaniswe ngezindlela zokwelapha ezingaphezulu:
Ibhodi elifakwe ngegolide (Igolide elincanyana eliChemical, Igolide eliwugqinsi weChemical, Ukufakwa kwegolide okukhethiwe)
Ingxenye Yesibili: Isimiso Sokusebenza Se-Aluminium Substrate
Amadivayisi kagesi abekwe phezulu kungqimba lwesekethe.Ukushisa okukhiqizwa amadivaysi ngesikhathi sokusebenza kuqhutshwa ngokushesha ngesendlalelo se-insulating kuya kwesendlalelo sesisekelo sensimbi, esikhipha ukushisa, sifinyelele ukuchithwa kokushisa kwamadivayisi.
Uma kuqhathaniswa ne-FR-4 yendabuko, ama-substrates e-aluminium anganciphisa ukumelana nokushisa, awenze amakhondaktha okushisa amahle kakhulu.Uma kuqhathaniswa namasekethe e-ceramic aminyene, abuye abe nezakhiwo ezisezingeni eliphakeme zemishini.
Ukwengeza, ama-substrates e-aluminium anezinzuzo ezilandelayo eziyingqayizivele:
- Ukuhambisana nezidingo ze-RoHs
- Ukuzivumelanisa nezimo kangcono kuzinqubo ze-SMT
- Ukuphathwa ngokuphumelelayo kokusabalalisa okushisayo ekwakhiweni kwesekethe ukunciphisa izinga lokushisa lemojula, ukwelula isikhathi sokuphila, ukuthuthukisa ukuminyana kwamandla nokuthembeka
- Ukwehliswa kokuhlanganiswa kwamasinki okushisa nezinye ihadiwe, okuhlanganisa izinto zokusebenzisana ezishisayo, okuholela kumthamo womkhiqizo omncane kanye nezindleko eziphansi zehadiwe nezokuhlanganisa, kanye nenhlanganisela efanele yamandla nokulawula amasekhethi
- Ukushintshwa kwama-substrates e-ceramic antekenteke ukuze kuthuthukiswe ukuqina kwemishini
Ingxenye Yesithathu: Ukwakhiwa Kwe-Aluminium Substrates
1. Ungqimba Lwesekethe
Isendlalelo sesifunda (ngokuvamile sisebenzisa ucwecwe lwethusi lwe-electrolytic) luqoshwe ukwenza amasekhethi aphrintiwe, asetshenziselwa ukuhlanganiswa kwengxenye nokuxhumana.Uma kuqhathaniswa ne-FR-4 yendabuko, enobukhulu obufanayo nobubanzi bomugqa, ama-substrates e-aluminium angathwala amaza aphezulu.
2. I-Insulating Layer
Isendlalelo se-insulating siwubuchwepheshe obuyinhloko kuma-substrates e-aluminium, esebenza ngokuyinhloko ukunamathela, ukuhlukanisa, nokushisa.Ungqimba oluvikelayo lwe-aluminium substrates luyisithiyo esishisayo esibaluleke kakhulu ezakhiweni zamamojula amandla.I-thermal conductivity engcono yesendlalelo se-insulating kusiza ukusakazeka kokushisa okukhiqizwa phakathi nokusebenza kwedivayisi, okuholela emazingeni okushisa aphansi okusebenza, ukukhuphuka kwamandla emojuli, usayizi oncishisiwe, ubude besikhathi sempilo, kanye nokuphuma kwamandla aphezulu.
3. I-Metal Base Layer
Ukukhethwa kwensimbi yesisekelo sensimbi evikelayo kuncike ekucabangeni okuphelele kwezinto ezifana ne-coefficient yesisekelo sensimbi sokunwetshwa kwe-thermal, ukuqhutshwa kwe-thermal, amandla, ubulukhuni, isisindo, isimo esiphezulu, kanye nezindleko.
Ingxenye Yesine: Izizathu Zokukhetha Ama-Aluminium Substrates
1. Ukushisa Ukushisa
Amabhodi amaningi anezinhlangothi ezimbili nanezendlalelo eziningi anokuminyana okuphezulu namandla, okwenza ukuqeda ukushisa kube inselele.Izinto ezivamile ze-substrate ezifana ne-FR4 ne-CEM3 azikhondathisi ezingezinhle zokushisa futhi zine-inter-layer insulation, okuholela ekulahlekeni kokushisa okunganele.Ama-Aluminium substrates axazulula le nkinga yokukhishwa kokushisa.
2. Ukwanda Okushisayo
Ukunwetshwa kwe-thermal nokufinyela kungokwemvelo ezintweni ezisetshenziswayo, futhi izinto ezihlukene zinama-coefficients ahlukene wokunwetshwa kokushisa.Amabhodi aphrintiwe asekelwe ku-aluminium abhekana ngokuphumelelayo nezinkinga zokukhipha ukushisa, okwenza kube lula inkinga yokunwetshwa kokushisa okuhlukile ezingxenyeni zebhodi, ukuthuthukisa ukuqina nokuthembeka kukonke, ikakhulukazi ezinhlelweni ze-SMT (Surface Mount Technology).
3. Ukuzinza kweDimensional
Amabhodi aphrintiwe asuselwa ku-aluminium azinzile ngokuphawulekayo ngokwemibandela yobukhulu uma kuqhathaniswa namabhodi aphrintiwe wezinto ezigqunyiwe.Ukushintsha kobukhulu bamabhodi aphrintiwe asekelwe ku-aluminium noma amabhodi awumongo we-aluminium, ashisisa ukusuka ku-30°C kuya ku-140-150°C, kungu-2.5-3.0%.
4. Ezinye Izizathu
Amabhodi aphrintiwe asekelwe ku-aluminium anemiphumela yokuvikela, ashintsha ama-substrates e-ceramic aphukayo, afanele ubuchwepheshe bokukhweza phezulu, anciphisa indawo esebenzayo yamabhodi aphrintiwe, ashintshe izingxenye ezifana namasinki okushisa ukuze kuthuthukiswe ukumelana nokushisa komkhiqizo kanye nezakhiwo ezibonakalayo, nokunciphisa izindleko zokukhiqiza nokusebenza.
Ingxenye Yesihlanu: Izicelo Ze-Aluminium Substrates
1. Izisetshenziswa zomsindo: Izikhulisa-zwi zokufaka/okukhiphayo, izikhulisa-zwi ezilinganiselayo, izikhulisamsindo zomsindo, izikhulisa-msindo zangaphambili, izikhulisamandla, njll.
2. Izisetshenziswa zamandla: Izilawuli zokushintsha, iziguquli ze-DC/AC, izilungisi ze-SW, njll.
3. Izinsiza Ze-elekthronikhi Zokuxhumana: Ama-amplifiers aphezulu, amadivaysi okuhlunga, amasekhethi okudlulisa, njll.
4. I-Office Automation Equipment: Abashayeli bezimoto zikagesi, njll.
5. Izimoto: Izilawuli ze-elekthronikhi, izinhlelo zokuthungela, izilawuli zamandla, njll.
6. Amakhompyutha: Amabhodi e-CPU, amadrayivu e-floppy disk, amayunithi wamandla, njll.
7. Amamojula Amandla: Ama-Inverters, ama-solid-state relays, amabhuloho okulungisa, njll.
8. Ukulungiswa Kwezibani: Ngokukhuthazwa kwezibani zokulondoloza amandla, ama-substrates asekelwe ku-aluminium asetshenziswa kakhulu ezibani ze-LED.
Isikhathi sokuthumela: Aug-09-2023
