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dangcv8
01

Su'aalaha Badiya La Weydiiyo
show2v
02

Su'aalaha Badiya La Weydiiyo ee Adeegga PCB
ddangusw
03

Su'aalaha Inta Badan La Isweydiiyo ee Adeegga Golaha PCB

Su'aalaha Badiya La Weydiiyo

PCB-ga gadaal-u-soo-kabashada

Waa maxay Qodista Dib-u-eegista PCB?

Habka qodista dambe ee PCB, oo sidoo kale loo yaqaan qodista qoto dheer ee la xakameeyey, waxaa ku jira ka saarista stubka PCB-yada lakabka badan leh si loo abuuro vias. Ujeeddada qodista dambe waa in la fududeeyo socodka calaamadaha u dhexeeya lakabyada kala duwan ee looxa iyada oo aan faragelin ka imanayn stubyada aan loo baahnayn.
Si aan u bixinno sharraxaad cad oo ku saabsan habka qodista dambe, aan ka fiirsanno tusaale.
Ka soo qaad in uu jiro PCB 12-lakab ah oo leh god dhex mara oo isku xiraya lakabka koowaad iyo kan 12-aad. Ujeedadu waa in lakabka koowaad oo keliya lagu xiro lakabka 9-aad, iyadoo lakabka 10-aad ilaa kan 12-aad aan la isku xirin. Si kastaba ha ahaatee, lakabka aan isku xirnayn wuxuu abuuraa "xarig" oo faragelin kara waddada calaamadda, taasoo keenta dhibaatooyin ku saabsan daacadnimada calaamadda. Qoditaanka dambe wuxuu ku lug leeyahay qodista xarigyadan dhinaca dambe ee looxa si loo hagaajiyo gudbinta calaamadaha.

Waa maxay ujeeddada qodista dib-u-qodista PCB?

Qoditaanka dambe ee PCB waxaa loo isticmaalaa in lagu saaro qaybta aan la isticmaalin ee godka dhex mara (via) oo ka baxsan lakabka ugu dambeeya ee PCB. Habkani wuxuu kaa caawinayaa yareynta arrimaha daacadnimada calaamadda, sida resonance stub iyo milicsiga calaamadaha, kuwaas oo ka dhici kara naqshadaha dijitaalka ah ee xawaaraha sare leh.

Waa maxay "saamiga dhinaca"?

Su'aalaha Badiya La Weydiiyo Ee Ku Saabsan Looxyada Wareegga Daabacan › ERAYADA
Xiriirka ka dhexeeya dhexroorka godka iyo dhererkiisa. Marka soo-saare uu sheego in wax-soo-saarkoodu uu leeyahay "saamiga dhinac" oo ah 8:1, waxay la macno tahay, tusaale ahaan, in dhexroorka godku uu yahay 0.20 mm oo ku jira PCB dhumucdiisu tahay 1.60 mm.
Qaab-dhismeedka HDI, saamiga dhinaca ee microvia wuxuu ku kooban yahay 1:1, laakiin 0.7-0.8:1 ayaa ka wanaagsan in la fududeeyo dahaadhka.

Waa maxay faa'iidooyinka qodista dib-u-qodista PCB-ga?

Faa'iidooyinka qodista dambe ee PCB waxaa ka mid ah hagaajinta hufnaanta calaamadaha, hoos u dhaca luminta gelinta, xakamaynta isgoysyada oo la xoojiyay, iyo kordhinta baaxadda. Marka laga saaro qaybta aan la isticmaalin ee foostada via, qodista dambe waxay yareysaa falcelinta stub iyo milicsiga calaamadaha, taasoo keenta gudbinta calaamadaha oo nadiif ah oo sax ah.