Ku soo dhawoow mareegahayaga

12-lakabyada-PCB

Sharaxaad Gaaban:


Faahfaahinta Alaabta

Qaar kalexog12kan lakab ee PCB

Lakabyada looxa: 12 lakab

Dhammaadka dhumucda looxa: 1.6mm

Daaweynta dusha sare: ENIG 1 ~ 2 u"

Qalabka looxa: Shengyi S1000

Dhameystir dhumucda naxaasta: 1 OZ lakabka gudaha, 1 OZ lakabka baxay

Soldmask Midabka: Cagaaran

Midabka Silkscreen: Caddaan

Iyada oo la xakameynayo impedance

Indho la'aan & fiisooyin la aasay

12-layers-PCB (3)

Waa maxay mabaadi'da aasaasiga ah ee impedance iyo tixgalinta naqshadaynta rajada ee looxyada badan?

Marka naqshadaynta impedance iyo isugaynta, ugu weyn

salku waa dhumucda PCB, tirada lakabyada, impedance

shuruudaha qiimaha, cabbirka hadda, daacadnimada calaamadaha,

daacadnimada awoodda, iwm. Mabaadi'da tixraaca guud

waa sida soo socota:

1. Laminate wuxuu leeyahay simmetry;

2. Caqabaddu waxay leedahay sii socosho;

3. Lakabka tixraaca ee ka hooseeya dusha qaybta waa inuu noqdaa dhul dhamaystiran ama ilo koronto (sida caadiga ah lakabka labaad ama lakabka penultimate);

4. Diyaarad koronto iyo diyaarad dhulka ah ayaa si adag isugu xiran;

5. Lakabka calaamaduhu wuxuu u dhow yahay sida ugu macquulsan lakabka diyaaradda tixraaca;

6. Ka fogee masaafada u dhaxaysa labada lakab ee signalada ku xiga sida ugu macquulsan.Jidku waa orthogonal;

7. Labada lakab ee tixraaca ee kor ku xusan iyo hoosta calaamada waa dhul iyo awood, isku day inaad soo gaabin masaafada u dhaxaysa lakabka calaamadaha iyo lakabka dhulka;

8. Kala fogaanshaha calaamadaha kala duwan ≤ 2 jeer ballaca xariiqda;

9. Prepreg u dhexeeya lakabyada waa ≤3;

10. Ugu yaraan hal xaashi oo ah 7628 ama 2116 ama 3313 ee lakabka sare ee sare;

11. Habka isticmaalka prepreg waa 7628→2116→3313→1080→106


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