Gawo 1: Kodi Aluminium PCB ndi chiyani?
Aluminiyamu gawo lapansi ndi mtundu wa zitsulo zopangidwa ndi zitsulo zamkuwa zokhala ndi ntchito yabwino kwambiri yotaya kutentha.Nthawi zambiri, bolodi lokhala ndi mbali imodzi limapangidwa ndi zigawo zitatu: chozungulira (chojambula chamkuwa), chosanjikiza chotchinga, ndi chitsulo.Pazogwiritsa ntchito zapamwamba, palinso mapangidwe a mbali ziwiri okhala ndi mawonekedwe ozungulira, insulating layer, aluminium base, insulating layer, ndi circuit layer.Mapulogalamu ochepa amaphatikizapo matabwa amitundu yambiri, omwe amatha kupangidwa pomanga matabwa wamba amitundu yambiri okhala ndi zigawo zoteteza ndi zoyambira za aluminiyamu.
Mbali imodzi ya aluminiyamu gawo lapansi: Muli gawo limodzi la magawo opangira ma conductive, zinthu zotetezera, ndi mbale ya aluminiyamu (gawo lapansi).
Mbali ziwiri za aluminiyamu gawo lapansi: Zimaphatikizapo zigawo ziwiri za zigawo za conductive, insulating material, ndi mbale ya aluminiyamu (gawo lapansi) zokhala pamodzi.
Mipikisano wosanjikiza kusindikizidwa zotayidwa dera bolodi: Ndi kusindikizidwa dera bolodi opangidwa ndi laminating ndi kugwirizana zigawo zitatu kapena kuposa conductive chitsanzo zigawo, insulating zakuthupi, ndi mbale zotayidwa (gawo lapansi) pamodzi.
Amagawidwa ndi njira zochizira pamwamba:
Bolodi wokutidwa ndi golide (Golide wochepa thupi, Chemical wandiweyani, golide wosankha)
Gawo Lachiwiri: Aluminium Substrate Working Mfundo
Zipangizo zamagetsi zimayikidwa pamwamba pamtunda wozungulira.Kutentha kopangidwa ndi zipangizo panthawi yogwira ntchito kumayendetsedwa mofulumira kupyolera muzitsulo zotetezera kuzitsulo zazitsulo, zomwe zimachotsa kutentha, kukwaniritsa kutentha kwa zipangizo.
Poyerekeza ndi chikhalidwe cha FR-4, magawo a aluminiyamu amatha kuchepetsa kukana kwamafuta, kuwapangitsa kukhala okonda kutentha kwambiri.Poyerekeza ndi mabwalo a ceramic amtundu wakuda, amakhalanso ndi makina apamwamba kwambiri.
Kuphatikiza apo, magawo a aluminiyamu ali ndi zabwino izi:
- Kutsata zofunikira za RoHs
- Kusinthika kwabwino kumachitidwe a SMT
- Kusamalira moyenera kufalikira kwamafuta pamapangidwe ozungulira kuti muchepetse kutentha kwa gawo, kukulitsa moyo, kukulitsa kachulukidwe kamagetsi ndi kudalirika.
- Kuchepetsa kuphatikizika kwa masinki otentha ndi zida zina, kuphatikiza zida zoyatsira moto, zomwe zimapangitsa kuti pakhale kuchuluka kwazinthu zazing'ono komanso kutsika kwamitengo yamagetsi ndi kusonkhana, komanso kuphatikiza koyenera kwamagetsi ndi mabwalo owongolera.
- Kusintha kwa magawo osalimba a ceramic kuti makina azikhala olimba
Gawo Lachitatu: Mapangidwe a Aluminium Substrates
1. Gulu Lozungulira
Dera lozungulira (lomwe limagwiritsidwa ntchito popanga zojambula zamkuwa za electrolytic) limakhazikika kuti lipange mabwalo osindikizidwa, omwe amagwiritsidwa ntchito pophatikiza zigawo ndi kulumikizana.Poyerekeza ndi chikhalidwe cha FR-4, chokhala ndi makulidwe omwewo ndi m'lifupi mwake, magawo a aluminiyamu amatha kunyamula mafunde apamwamba.
2. Insulating Layer
Chipinda chotchinga ndi ukadaulo wofunikira mu magawo a aluminiyamu, omwe amagwiritsidwa ntchito makamaka pakumatira, kutsekereza, ndi kuwongolera kutentha.Chotchinga chotchinga cha magawo a aluminiyamu ndiye chotchinga chofunikira kwambiri pamagawo amagetsi.Kutentha kwabwino kwa gawo la insulating kumathandizira kufalikira kwa kutentha komwe kumapangidwa panthawi yogwiritsira ntchito chipangizocho, zomwe zimapangitsa kuti kutentha kwapang'onopang'ono kukhale kocheperako, kuchulukitsidwa kwamagetsi a module, kukula kochepa, kutalika kwa moyo, komanso kutulutsa mphamvu zambiri.
3. Metal Base Layer
Kusankhidwa kwachitsulo pazitsulo zotchingira zitsulo kumadalira kuganiziridwa bwino kwa zinthu monga coefficient of metal base of thermal expansion, matenthedwe matenthedwe, mphamvu, kuuma, kulemera, mawonekedwe apamwamba, ndi mtengo.
Gawo Lachinayi: Zifukwa Zosankhira Magawo a Aluminiyamu
1. Kutentha Kutentha
Ma board ambiri am'mbali ndi amitundu yambiri amakhala ndi kachulukidwe komanso mphamvu zambiri, zomwe zimapangitsa kuti kutentha kukhale kovuta.Zida zapansi panthaka monga FR4 ndi CEM3 ndizokonda kutentha komanso zimakhala zotsekera pakati, zomwe zimapangitsa kuti kutentha kusakhale kokwanira.Magawo a aluminiyamu amathetsa vuto la kutaya kutenthaku.
2. Kuwonjezeka kwa kutentha
Kukula ndi kutsika kwamafuta kumagwirizana ndi zinthu, ndipo zinthu zosiyanasiyana zimakhala ndi ma coefficients osiyanasiyana akukula kwamafuta.Ma board osindikizidwa opangidwa ndi aluminiyamu amathana bwino ndi vuto la kutentha kwapang'onopang'ono, kuchepetsa vuto lakukula kwamafuta osiyanasiyana pazigawo za bolodi, kupangitsa kuti ikhale yolimba komanso yodalirika, makamaka pamapulogalamu a SMT (Surface Mount Technology).
3. Dimensional Kukhazikika
Ma board osindikizidwa opangidwa ndi aluminiyamu amakhala okhazikika potengera kukula kwake poyerekeza ndi matabwa osindikizidwa.Kusintha kwapang'onopang'ono kwa matabwa osindikizidwa opangidwa ndi aluminiyamu kapena matabwa apakatikati, otenthedwa kuchokera 30 ° C mpaka 140-150 ° C, ndi 2.5-3.0%.
4. Zifukwa Zina
Aluminiyamu ofotokoza kusindikizidwa matabwa ndi zoteteza, m'malo Chimaona za ceramic magawo, ndi oyenera pamwamba mounting luso, kuchepetsa m'dera ogwira matabwa osindikizidwa, m'malo zigawo zikuluzikulu monga kutentha kumazama kumapangitsanso mankhwala kukana kutentha ndi katundu thupi, ndi kuchepetsa mtengo kupanga ndi ntchito.
Gawo Lachisanu: Kugwiritsa Ntchito Magawo A Aluminium
1. Zida Zomvera: Zowonjezera / zotulutsa zotulutsa, zowonjezera zowonjezera, zowonjezera zomvetsera, zowonjezera zowonjezera, zowonjezera mphamvu, etc.
2. Zida Zamagetsi: Kusintha owongolera, otembenuza DC / AC, osintha SW, etc.
3. Zipangizo Zamagetsi Zamagetsi: Ma amplifiers apamwamba kwambiri, zipangizo zosefera, maulendo opatsirana, ndi zina zotero.
4. Office Automation Equipment: Madalaivala amagetsi amagetsi, etc.
5. Magalimoto: Owongolera zamagetsi, makina oyatsira, owongolera mphamvu, ndi zina zambiri.
6. Makompyuta: Ma board a CPU, ma floppy disk drive, mayunitsi amagetsi, ndi zina zambiri.
7. Ma module a Mphamvu: Ma inverters, ma relay olimba, milatho yokonzanso, etc.
8. Zowunikira Zowunikira: Polimbikitsa nyali zopulumutsa mphamvu, magawo opangidwa ndi aluminiyamu amagwiritsidwa ntchito kwambiri mu nyali za LED.
Nthawi yotumiza: Aug-09-2023
