LBH

Li-vias tse foufetseng: Ha lehlakore le le leng feela la li-vias le le ka ntle ho PCB, li bitsoa li-vias tse foufetseng.

Li-via tse patiloeng: Ha mahlakore ka bobeli a li-via a patiloe ka har'a lera le ka hare la PCB, li bitsoa li-via tse patiloeng.

Taba ea pele, re bua ka laser drill blind ka masoba. PCB blind ka mokhoa oa tlhahiso e latelang:

1) Qetella mekhahlelo eohle ea ka hare pele;

2) ho lahlela ka har'a lera tse peli tsa prepreg le lakane ea koporo holim'a lera le ka hare la boto ea PCB le seng le loketse ho phethoa;

3) phunya bofofu bo laoloang ba botebo ka PCB ka laser.

Hlokomela hore ho nepahala ho bohlokoa haholo bakeng sa batho ba foufetseng ka ho sebelisa in pad.

Ha e le ka sefofu sa mechine se phunyeletsang ka masoba, re nka li-PCB tse nang le mela e 4 tse nang le li-vias tse blind ka lera la 1 ho isa lera la 2 mohlala, ts'ebetso e tjena:

1) hlahisa mekhahlelo ea 1 le ea 2 e le PCB e tloaelehileng ea mekhahlelo e 'meli, kahoo ho tla ba le li-drill holim'a mekhahlelo ea 1 ho isa ho ea 2;

2) ho kopanya mapolanka a mabeli a mantlha ka laminate e le hore re fumane PCB ea mekato e 4, 'me re phunye plating ka masoba;

3) ha PCB e felile, o fumana PTH ho tloha mealong ya 1 ho isa ho ya 4 le di-vias tse foufetseng ho tloha mealong ya 1 ho isa ho ya 2.

Melemo ea ho sebelisa sesebelisoa se foufetseng le se patiloeng e boletsoe ka tlase:

Ho fokotsa boholo le boima ba PCB

Ho fokotsa palo ea mekhahlelo

Ho fokotsa litšenyehelo tsa tlhahiso ea mefuta e 'maloa ea li-PCB ho tloha ha ho kopanngoa mesebetsi e mengata

Ho ntlafatsa ho lumellana ha motlakase

Ho eketsa litšobotsi tsa lihlahisoa tsa elektroniki

Ho etsa hore mosebetsi oa moralo o be bonolo le o potlakileng

Ho fokotsoa ha bophara ba li-vias tse foufetseng le tse patiloeng ho beha litlhoko tse phahameng tlhahisong ea PCB.

Ho hlokahala baenjiniere ba nang le boiphihlelo bo phahameng haholo ho rala li-PCB tsa li-vias tse foufetseng le tse patiloeng.

Ho thata haholo ho kopanya li-PCB tsa li-vias tse foufetseng le tse patiloeng kaha li lula li e-na le li-pad tse nyane, joalo ka li-pad tsa BGA.

Ka har'a boto ea li-via tsa drill blind drill ka laser, karolelano e tloaelehileng ea ponahalo ea blind through ke 1:1.

Li-vias tse patiloeng ka har'a PCB li tsamaea ka masoba a pakeng tsa mealo e ka hare. Re nka sefofu sa mealo e 6/se patiloeng ka boto ea potoloho mohlala: li-vias tse sa boneng li ka tsamaea ka masoba a tsoang moalong oa 2-3, 2-4, 2-5, 3-4, 3-5 le 4-5.

Li-PCB tsa HDI tse nang le blind via le tse patiloeng hangata li sebelisoa haholo, li lula li le teng ka har'a liboto tsa potoloho tse hatisitsoeng tsa theknoloji e phahameng ka nako e le 'ngoe. Empa ke mefuta e fapaneng ka ho felletseng ea li-via.