Chaka chino, chokhudzidwa ndi mliri watsopano wa korona, kupezeka kwa zipangizo za PCB sikukwanira, ndipo mitengo ya zipangizo ikukweranso.Makampani okhudzana ndi PCB nawonso akhudzidwa kwambiri.Kuti ntchitoyo ipite patsogolo, mainjiniya amayenera kuganizira zokometsera mapangidwe kuti achepetse mtengo wa PCB.Ndiye, ndi zinthu ziti zomwe zingakhudze mtengo wopanga PCB?
Zinthu zazikulu zimakhudza mtengo wa PCB wanu
1. PCB kukula ndi kuchuluka
Ndizosavuta kumvetsetsa momwe kukula ndi kuchuluka kungakhudzire mtengo wa PCB, kukula ndi kuchuluka kwake kudzadya zida zambiri.
2. Mitundu ya zinthu zapansi panthaka zomwe zimagwiritsidwa ntchito
Zida zina zapadera zomwe zimagwiritsidwa ntchito m'malo ena ogwirira ntchito zitha kukhala zokwera mtengo kwambiri kuposa zida zanthawi zonse.Kupanga Mabodi Osindikizidwa Osindikizidwa kumadalira zinthu zingapo zomwe zimagwiritsidwa ntchito, zomwe zimayendetsedwa makamaka ndi ma frequency ndi liwiro la kagwiritsidwe ntchito, komanso kutentha kwakukulu kogwirira ntchito.
3. Chiwerengero cha zigawo
zigawo zambiri zimamasulira kukhala ndalama zowonjezera chifukwa cha masitepe ochulukirapo, zinthu zambiri, komanso nthawi yowonjezera yopanga.
4. PCB zovuta
PCB zovuta zimadalira chiwerengero cha zigawo ndi chiwerengero cha vias pa wosanjikiza aliyense, monga izi limafotokoza kusiyanasiyana kwa zigawo kumene vias kuyamba ndi kusiya pa, chofunika kwambiri lamination ndi kubowola masitepe mu ndondomeko PCB kupanga.Opanga amatanthauzira njira yochepetsera ngati kukanikiza zigawo ziwiri zamkuwa ndi ma dielectrics pakati pa zigawo zamkuwa zoyandikana pogwiritsa ntchito kutentha ndi kukakamiza kupanga laminate ya PCB yambiri.
Kodi mungakonze bwanji mapangidwe anu?
1. Track and gap geometry- thinner ndiyokwera mtengo.
2. Kuwongolera kwa impedance- njira zowonjezera zowonjezera zimawonjezera ndalama.
3. Kukula ndi kuwerengera kwa mabowo- mabowo ambiri ndi ma diameter ang'onoang'ono amakwera pamwamba.
4. plugged kapena wodzazidwa vias ndi ngati mkuwa yokutidwa- zina ndondomeko masitepe kuwonjezera ndalama.
5. Makulidwe a mkuwa m'magawo- makulidwe apamwamba amatanthauza mtengo wokwera.
6. Kumaliza pamwamba, kugwiritsa ntchito golide ndi makulidwe ake- Zinthu zowonjezera ndi masitepe opangira zimachulukitsa mtengo.
7. Kulekerera- kulolerana kokulirapo ndikokwera mtengo.
Zinthu zina zimakhudza mtengo wanu.
Izi zing'onozing'ono zamtengo wapatali zokhudzana ndi gulu la III zimadalira onse, wopanga ndi kugwiritsa ntchito PCB.Iwo makamaka akuphatikizapo:
1. PCB makulidwe
2. Mankhwala osiyanasiyana apamwamba
3. Solder masking
4. Kusindikiza kwa nthano
5. Kalasi ya magwiridwe antchito a PCB (IPC Kalasi II/ III etc.)
6. PCB contour- makamaka pa z- axis routing
7. Kupaka m'mbali kapena m'mphepete
PHILIFAST adzakupatsani malingaliro abwino molingana kukuthandizani kuchepetsa mtengo wa matabwa PCB.
Nthawi yotumiza: Jul-14-2021