I-Metal Core PCB isho ukuthi into ewumgogodla (isisekelo) ye-PCB iyinsimbi, hhayi i-FR4/CEM1-3 evamile, njll. futhi okwamanje insimbi esetshenziswa kakhulu kumkhiqizi we-MCPCB i-Aluminium, Ithusi ne-alloy yensimbi. I-Aluminium inekhono elihle lokudlulisa ukushisa nekhono lokulahla, kodwa nokho ishibhile; ithusi linokusebenza okungcono nakakhulu kodwa libiza kakhulu, futhi insimbi ingahlukaniswa ibe yinsimbi evamile nensimbi engagqwali. Iqinile kakhulu kunakho kokubili i-aluminium nethusi, kodwa ukuqhutshwa kokushisa kuphansi kunabo futhi. Abantu bazozikhethela isisekelo/izinto eziwumgogodla ngokuya ngokusetshenziswa kwabo okuhlukile.

Ngokuvamile, i-aluminium iyindlela yomnotho kakhulu uma kucatshangelwa ukuqhutshwa kokushisa, ukuqina, kanye nezindleko. Ngakho-ke, izinto eziyisisekelo/eziyinhloko ze-Metal Core PCB ezijwayelekile zenziwe nge-aluminium. Enkampanini yethu, uma kungesona isicelo esikhethekile, noma amanothi, ireferensi yensimbi eyinhloko izoba i-aluminium, bese i-MCPCB izosho i-Aluminium Core PCB. Uma udinga i-Copper Core PCB, i-Steel Core PCB, noma i-Stainless steel core PCB, kufanele wengeze amanothi akhethekile emdwebeni.

Kwesinye isikhathi abantu bazosebenzisa isifinyezo esithi “MCPCB”, esikhundleni segama eligcwele njenge-Metal Core PCB, noma i-Metal Core Printed Circuit Board. Futhi kusetshenziswe igama elihlukile libhekisa umnyombo/isisekelo, ngakho-ke uzobona negama elihlukile le-Metal Core PCB, njengokuthi  I-Metal PCB, i-Metal Base PCB, i-Metal Backed PCB, i-Metal Clad PCB ne-Metal Core Board nokunye.

Ama-MCPCB asetshenziswa esikhundleni sama-FR4 endabuko noma ama-CEM3 PCB ngenxa yekhono lokususa kahle ukushisa kude nezingxenye. Lokhu kufinyelelwa ngokusebenzisa I-Thermally Conductive Dielectric Layer.

Umehluko omkhulu phakathi kwebhodi le-FR4 ne-MCPCB yi-thermal conductivity dielectric material ku-MCPCB. Lokhu kusebenza njengebhuloho elishisayo phakathi kwezingxenye ze-IC ne-metal backing plate. Ukushisa kuqhutshwa kusukela ephaketheni ngokusebenzisa ingqikithi yensimbi kuya kusinki wokushisa owengeziwe. Ebhodini le-FR4 ukushisa kuhlala kumile uma kungadluliswanga yi-heatsink yendawo. Ngokokuhlolwa ngelebhu i-MCPCB ene-1W LED yahlala iseduze nendawo engu-25C, kuyilapho yona le LED engu-1W ebhodini le-FR4 ifinyelela ku-12C ngaphezu kwe-ambient. I-LED PCB ihlale ikhiqizwa nge-Aluminium core, kodwa ngezinye izikhathi i-steel core PCB iphinde isetshenziswe.

Inzuzo ye-MCPCB

1.ukushisa

Amanye ama-LED ahlakaza phakathi kuka-2-5W wokushisa nokwehluleka kwenzeka lapho ukushisa okuvela ku-LED kungasuswa kahle; ukukhanya kwe-LED kuyancishiswa kanye nokuwohloka lapho ukushisa kuhlala kumile kuphakheji ye-LED. Injongo ye-MCPCB ukususa kahle ukushisa kuwo wonke ama-IC's (hhayi ama-LED kuphela). Isisekelo se-aluminium kanye nesendlalelo se-dielectric esibamba ukushisa sisebenza njengamabhuloho phakathi kwama-IC kanye nesinki yokushisa. Usinki owodwa wokushisa ugxunyekwe ngqo kusisekelo se-aluminium asusa isidingo samasinki amaningi okushisa phezu kwezingxenye ezifakwe phezulu.

2. ukunwetshwa okushisayo

Ukunwetshwa kwe-thermal nokufinyela kuyimvelo evamile yento, i-CTE ehlukile ihlukile ekwandiseni okushisayo. Njengezimpawu zayo, i-aluminiyamu nethusi kunokudlulela okuyingqayizivele kune-FR4 evamile, ukuqhutshwa kwe-thermal kungaba ngu-0.8~3.0 W/c.K.

3. ukuzinza kwe-dimensional

Kuyacaca ukuthi usayizi webhodi lesifunda eliphrintiwe lensimbi lizinzile kunezinto zokuvikela. Ukushintsha kosayizi okungu-2.5 ~ 3.0% lapho i-Aluminium PCB namaphaneli wesemishi le-aluminium kushisiswe kusuka ku-30 ​​℃ kuya ku-140 ~ 150 ℃.


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