- 28
- Sep
Yadda ake ƙera tarin PCB 4-Layer？
Yadda ake tsarawa PCB mai kaɗa-4 tari
A ka’idar, akwai zaɓuɓɓuka guda uku.
Hanya 1:
Layer na samar da wutar lantarki, yashi ƙasa da yadudduka sigina biyu an shirya su kamar haka:
TOP (Layer siginar); L2 (samuwar); L3 (Layer samar da wutar lantarki); BOT (siginar siginar).
Shirin 2:
Layer na samar da wutar lantarki, yashi ƙasa da yadudduka sigina biyu an shirya su kamar haka:
TOP (Layer samar da wutar lantarki); L2 (siginar siginar); L3 (Layer sigina; BOT (bene na ƙasa).
Shirin 3:
Layer na samar da wutar lantarki, yashi ƙasa da yadudduka sigina biyu an shirya su kamar haka:
TOP (Layer siginar); L2 (Layer wutar lantarki); L3 (layin haɗin kai); BOT (siginar siginar).
Layer sigina
Kasan kasa
iko
Layer sigina
Menene fa’ida da rashin amfanin waɗannan zaɓuɓɓuka guda uku?
Hanya 1, babban tari na yadudduka huɗu na ƙirar PCB, akwai ƙasa a ƙarƙashin ɓangaren ɓangaren, siginar maɓalli shine mafi kyawun TOP Layer; Don kauri Layer Saituna, ana ba da shawarar shawarwarin masu zuwa: Faifan mahimmancin faranti (GND zuwa WUTA) kada yayi kauri sosai don rage ƙarancin rarrabawar wadatar WUTA da ƙasa; Tabbatar da ƙulla jirgin sama mai ƙarfi.
Mataki na 2, don cimma wani sakamako na garkuwa, ana sanya wutar lantarki da sanya ƙasa a saman TOP da BOTTOM. Koyaya, shirin dole ne ya sami tasirin masking da ake so. Akalla akwai lahani masu zuwa:
1, wutar lantarki da kasa sunyi nisa sosai. Haƙƙin jirgin yana da girma sosai.
2, saboda tasirin faifan bangaren, samar da wutar lantarki da kasa bai cika cika ba. Matsalar siginar ba ta ƙarewa saboda rashin cikakken bayani akan farfajiya.
A aikace, samar da wutan lantarki da maƙasudin maganin yana da wahalar amfani da shi azaman cikakken jirgin bincike saboda yawan na’urorin da aka ɗora a saman. Tasirin garkuwa da ake tsammanin yana da kyau sosai. Wahalar aiwatarwa; Amfani da shi yana da iyaka. Koyaya, shine mafi kyawun tsarin saitin Layer akan allon da’irar guda.
Hanyar 3, mai kama da hanya 1, ana amfani da ita inda aka shimfida babban kayan aiki tare da BOTTOM ko siginar siginar tushe.