Kodi mukukayikira, chifukwa chiyani gawo lapansi la aluminiyamu lili bwino kuposa FR-4?
Aluminiyamu pcb ali bwino processing ntchito, kungakhale ozizira ndi otentha kupinda, kudula, kubowola ndi ntchito zina processing, kupanga zosiyanasiyana akalumikidzidwa ndi makulidwe a bolodi dera. Gulu ladera la FR4 ndilosavuta kusweka, kuvula ndi mavuto ena, ndipo ndizovuta kukonza. Choncho, gawo lapansi la aluminiyamu nthawi zambiri limagwiritsidwa ntchito pazinthu zamagetsi zamagetsi, monga kuyatsa kwa LED, zamagetsi zamagalimoto, magetsi ndi zina.
Kumene, zotayidwa pcb alinso ndi kuipa. Chifukwa cha gawo lapansi lachitsulo, mtengo wa aluminiyamu gawo lapansi ndi wokwera, ndipo nthawi zambiri ndi wokwera mtengo kwambiri kuposa FR4. Kuonjezera apo, chifukwa gawo lapansi la aluminiyamu silophweka kugwirizana ndi zikhomo za zipangizo zamagetsi, chithandizo chapadera, monga zitsulo, chimafunika, chomwe chimawonjezera mtengo wopanga. Kuphatikiza apo, gawo lotsekera la gawo lapansi la aluminiyamu limafunikiranso chithandizo chapadera kuti zitsimikizire kuti kutentha kwapang'onopang'ono kumagwira ntchito popanda kukhudza kufalikira kwa chizindikiro.
Kuphatikiza pa kusiyana kwa mtengo, palinso kusiyana pakati pa aluminiyamu pcb ndi FR4 malingana ndi ntchito ndi ntchito zosiyanasiyana.
Choyamba, gawo lapansi la aluminiyamu limakhala ndi ntchito yabwino yochepetsera kutentha, yomwe imatha kutulutsa bwino kutentha kopangidwa ndi bolodi ladera mwachangu. Izi zimapangitsa kuti gawo lapansi la aluminiyamu likhale loyenera kwambiri kuti likhale lamphamvu kwambiri, lapamwamba kwambiri, monga magetsi a LED, ma modules amphamvu, ndi zina zotero. kamangidwe ka dera.
Kachiwiri, mphamvu yonyamulira ya aluminiyamu gawo lapansi ndiyokulirapo, yomwe ili yoyenera ma frequency apamwamba komanso magwiridwe antchito apamwamba apano. M'mapangidwe amagetsi apamwamba kwambiri, zamakono zidzatulutsa kutentha, ndipo kutentha kwapamwamba kwambiri komanso kutentha kwabwino kwa gawo lapansi la aluminiyamu kungathe kuthetsa kutentha, motero kuonetsetsa kudalirika ndi kukhazikika kwa dera. Kuthekera kwaposachedwa kwa FR4 ndikocheperako ndipo sikoyenera pazamagetsi amphamvu kwambiri, othamanga kwambiri.
Kuphatikiza apo, magwiridwe antchito a aluminium substrate seismic ndiabwino kuposa FR4, amatha kukana kugwedezeka kwamakina ndi kugwedezeka, kotero pamagalimoto, njanji ndi magawo ena amagetsi amagetsi, gawo lapansi la aluminiyamu lagwiritsidwanso ntchito kwambiri. Nthawi yomweyo, gawo lapansi la aluminiyamu lilinso ndi magwiridwe antchito abwino a anti-electromagnetic interference, omwe amatha kuteteza bwino mafunde a electromagnetic ndikuchepetsa kusokonezedwa kwa dera.
Nthawi zambiri, aluminiyamu pcb imakhala ndi ntchito yabwino yochepetsera kutentha, mphamvu yonyamulira pano, magwiridwe antchito a seismic ndi kukana kwamagetsi amagetsi kuposa FR4, ndipo ndiyoyenera kupanga mphamvu zamagetsi, osalimba kwambiri komanso ma frequency apamwamba. FR4 ndiyoyenera kupanga mawonekedwe amagetsi wamba, monga mafoni am'manja, ma laputopu ndi zinthu zina zamagetsi zamagetsi. Mtengo wa gawo lapansi la aluminiyamu nthawi zambiri umakhala wokwera, koma pamapangidwe ofunikira kwambiri, kusankha gawo lapansi la aluminiyamu ndi gawo lofunikira kwambiri.
Mwachidule, zotayidwa pcb ndi FR4 ndi oyenera mitundu yosiyanasiyana ya ntchito dera ndipo ali ndi ubwino ndi kuipa. Posankha zida zama board ozungulira, ndikofunikira kuyeza zinthu zosiyanasiyana molingana ndi mawonekedwe ogwiritsira ntchito komanso zofunikira kuti musankhe zida zoyenera kwambiri.
Nthawi yotumiza: Nov-30-2023
