PCB zotayidwa gawo lapansi ali mayina ambiri, zotayidwa cladding, zotayidwa PCB, zitsulo atavala kusindikizidwa dera bolodi (MCPCB), thermally conductive PCB, etc. Ubwino wa PCB zotayidwa gawo lapansi ndi kuti kuzimiririka kutentha ndi bwino kuposa muyezo FR-4 dongosolo, ndi dielectric ntchito kawirikawiri Ndi 5 kwa 10 nthawi matenthedwe madutsidwe wa ochiritsira epoxy galasi, ndi kutentha kutengerapo index wa gawo limodzi mwa magawo khumi a makulidwe ndi kothandiza kuposa chikhalidwe okhwima PCB. Tiyeni timvetsetse mitundu ya PCB aluminiyamu magawo pansipa.

1. Chigawo cha aluminium chosinthika

Chimodzi mwazotukuka zaposachedwa muzinthu za IMS ndi ma dielectric osinthika. Zidazi zimatha kupereka zabwino kwambiri zamagetsi zamagetsi, kusinthasintha komanso kusinthasintha kwamafuta. Mukagwiritsidwa ntchito pazinthu zosinthika za aluminiyamu monga 5754 kapena zina zotero, mankhwala amatha kupangidwa kuti akwaniritse maonekedwe ndi ma angles osiyanasiyana, omwe amatha kuthetsa zipangizo zokwera mtengo, zingwe ndi zolumikizira. Ngakhale kuti zipangizozi ndi zosinthika, zimapangidwira kuti zipinde ndikukhalabe m'malo mwake.

2. Wosakaniza aluminium aluminium gawo lapansi
Mu "hybrid" IMS kapangidwe, "zigawo zing'onozing'ono" za zinthu zopanda kutentha zimakonzedwa paokha, ndiyeno Amitron Hybrid IMS PCBs amamangiriridwa ku gawo lapansi la aluminiyamu ndi zinthu zotentha. Kapangidwe kofala kwambiri ndi 2-wosanjikiza kapena 4-wosanjikiza subassembly yopangidwa ndi chikhalidwe cha FR-4, yomwe imatha kumangirizidwa ku gawo lapansi la aluminiyamu ndi thermoelectric kuthandiza kutulutsa kutentha, kukulitsa kulimba, ndikuchita ngati chishango. Zopindulitsa zina ndi izi:
1. Mtengo wotsika kuposa zida zonse zopangira matenthedwe.
2. Perekani ntchito yabwino yotentha kuposa zinthu zamtundu wa FR-4.
3. Zoyikira zotsika mtengo komanso njira zolumikizirana nazo zitha kuthetsedwa.
4. Itha kugwiritsidwa ntchito pamapulogalamu a RF omwe amafunikira mawonekedwe otayika a RF a PTFE pamwamba wosanjikiza.
5. Gwiritsani ntchito mazenera a chigawo mu aluminiyamu kuti agwirizane ndi zigawo za dzenje, zomwe zimalola zolumikizira ndi zingwe kuti zidutse cholumikizira kudzera mu gawo lapansi pomwe kuwotcherera ngodya zozungulira kuti apange chisindikizo popanda kufunikira kwa ma gaskets apadera kapena ma adapter ena okwera mtengo.

Atatu, multilayer aluminiyamu gawo lapansi
Pamsika wopatsa mphamvu kwambiri, ma IMS PCB amapangidwa ndi ma multilayer thermally conductive dielectrics. Zomangamangazi zimakhala ndi gawo limodzi kapena zingapo zozungulira zomwe zimakwiriridwa mu dielectric, ndipo ma vias akhungu amagwiritsidwa ntchito ngati njira zotenthetsera kapena njira zamawu. Ngakhale kuti mapangidwe amtundu umodzi ndi okwera mtengo komanso osathandiza kwambiri kuti asamutsire kutentha, amapereka njira yoziziritsira yosavuta komanso yothandiza pamapangidwe ovuta kwambiri.
Chachinayi, gawo lapansi lopangidwa ndi aluminium
Mu dongosolo lovuta kwambiri, aluminiyumu wosanjikiza akhoza kupanga "core" ya multilayer matenthedwe kapangidwe. Asanayambe lamination, aluminiyamu ndi electroplated ndi kudzazidwa ndi dielectric pasadakhale. Zida zotentha kapena zing'onozing'ono zimatha kukhala laminated kumbali zonse za aluminiyumu pogwiritsa ntchito zipangizo zomatira zotentha. Mukapangidwa ndi laminated, msonkhano womalizidwa umafanana ndi gawo lapansi lamitundu yambiri ya aluminiyamu pobowola. Zokutidwa kudzera m'mabowo kudutsa mipata mu aluminiyamu kuti asunge magetsi. Kapenanso, pachimake mkuwa akhoza kulola mwachindunji kugwirizana magetsi ndi insulating vias.