Teknụzụ kacha mma bụ otu n'ime ndị na-emepụta pcb kacha mma na ndị na-eweta bọọdụ sekit na China
Asụsụ
Teknụzụ kacha mma bụ otu n'ime ndị na-emepụta pcb kacha mma na ndị na-eweta bọọdụ sekit na China
"Otu akụkụ PCB", ma ọ bụ ị nwere ike ịkpọ ya dị ka Single Layer PCB, ma ọ bụ 1L PCB. Ebe ahụ's ọ bụghị naanị otu ọla kọpa trace on na osisi, SMD components n'otu akụkụ (site na oghere components n'akụkụ nke ọzọ), ma ọ dịghị PTH (plated site oghere) ma ọ bụ Via, nwere naanị NPTH (enweghị-plated throgh oghere), ma ọ bụ ọnọdụ. oghere.
Ọ bụ ụdị osisi kachasị ọnụ ala, a na-ejikwa ya na bọọdụ dị mfe. Iji nweta ọnụ ala dị ọnụ ala, mgbe ụfọdụ ndị mmadụ ga-eji CEM-1, CEM-3 kama FR4, mee bọọdụ sekit. Mgbe ụfọdụ, ụlọ ọrụ mmepụta ihe ga-ewepụ otu trace ọla kọpa na 2L CCL (ọla kọpa clad laminate) ma ọ bụrụ na enweghị 1L FR4 raw material dị.
Ebe ahụ's ọzọ ot osisi"2L PCB" nke nwere akara ọla kọpa 2, ma aha ya dị ka"PCB akụkụ abụọ" (D/S PCB), na PTH (Via) bụ ihe dị mkpa, ma ọ ka na-eme't nwere oghere ma ọ bụ kpuru ìsì. Enwere ike ikpokọta akụrụngwa n'akụkụ abụọ na elu, yabụ ị meghị ya't mkpa ichegbu onwe gị banyere ebe etinye components na osisi, na ọ dịghị mkpa iji site oghere components nke na-adị ọnụ mgbe niile karịa SMD otu.
Ugbu a nke a bụ otu n'ime ụdị PCB kachasị ewu ewu na Ụwa, anyị nwere ike ịnye ha ọrụ ntụgharị ọsọ ọsọ awa 24. Pịa ebe a ka ịhụ oge ndu maka ụdị bọọdụ sekit abụọ ahụ.
Ọdịdị nke otu akụkụ (1L) PCB
Nke a bụ akwa oyi akwa maka otu akụkụ (S/S) FR4 PCB (site n'elu ruo na ala):
Top silkscreen/Legend: iji chọpụta aha PAD ọ bụla, nọmba akụkụ osisi, data, wdg;
Imecha elu elu: iji chebe ọla kọpa ekpughere site na oxidation;
Top Soldermask (overlay): iji chebe ọla kọpa site na oxidation, ka a ghara ire ya n'oge usoro SMT;
Top Trace: ọla kọpa etched dị ka imewe si na-arụ ọrụ dị iche iche
Ihe ntinye/isi ihe: anaghị arụ ọrụ dịka FR4, FR3, CEM-1, CEM-3.
Nhazi nke PCB akụkụ abụọ (2L).
Top silkscreen/Legend: iji chọpụta aha PAD ọ bụla, nọmba akụkụ osisi, data, wdg;
Imecha elu elu: iji chebe ọla kọpa ekpughere site na oxidation;
Top Soldermask (overlay): iji chebe ọla kọpa site na oxidation, ka a ghara ire ya n'oge usoro SMT;
Top Trace: ọla kọpa etched dị ka imewe si na-arụ ọrụ dị iche iche
Ihe ntinye/isi ihe: anaghị arụ ọrụ dịka FR4, FR5
Nchọta ala (ọ bụrụ na ọ bụla): (otu aka ahụ ekwuru n'elu)
Bottom soldermask (machie):(otu aka ahụ ekwuru n'elu)
Ngwucha elu ala: (dị ka ekwuru n'elu)
Silkscreen/akụkọ ifo: (dị ka ekwuru n'elu)
