Vazhinji vanotenga zvemagetsi fekitori vakavhiringidzika nezve mutengo wePCB.kunyangwe vamwe vanhu vane makore mazhinji eruzivo mukutenga kwePCB vangasanzwisisa zvizere chikonzero chepakutanga.Muchokwadi, mutengo wePCB unoumbwa nezvinhu zvinotevera:
Chekutanga, mitengo yacho yakasiyana nekuda kwezvinhu zvakasiyana zvinoshandiswa muPCB.
Kutora zvakajairwa kaviri akaturikidzana pcb semuenzaniso, iyo laminate inosiyana kubva kuFR-4, CEM-3, nezvimwewo nehupamhi hwepakati kubva 0.2mm kusvika 3.6mm.Ukobvu hwemhangura hunosiyana kubva pa0.5Oz kusvika 6Oz, zvese zvakakonzera musiyano mukuru wemutengo.Iyo soldermask ingi mitengo yakasiyanawo neyakajairika thermosetting inki zvinhu uye photosensitive girinhi ingi zvinhu.
Chechipiri, mitengo yacho yakasiyana nekuda kwemaitiro akasiyana ekugadzira.
Maitiro ekugadzira akasiyana anoguma nemitengo yakasiyana.Zvakadai sebhodhi-yakavezwa bhodhi uye tin-plated bhodhi, chimiro chenzira uye punching, kushandiswa kwemitsetse yesilika yekrini uye mitsara yakaoma yefirimu ichaumba mari yakasiyana, zvichiita kuti mutengo usiyane.
Chechitatu, mitengo yacho yakasiyana nekuda kwekuoma uye kuwanda.
PCB ichave yakasiyana mutengo kunyange kana zvinhu uye maitiro akafanana, asi nekuoma kwakasiyana uye density.Semuenzaniso, kana paine maburi 1000 pamapuranga ese edunhu, gomba dhayamita reimwe bhodhi rakakura kupfuura 0.6mm uye gomba dhayamita rerimwe bhodhi risingasviki 0.6mm, izvo zvinogadzira zvakasiyana mari yekuchera.Kana mapuranga maviri edunhu akafanana mune zvimwe zvikumbiro, asi upamhi hwemutsara hwakasiyana hunoguma nemutengo wakasiyana, sekuti rimwe bhodhi rakafara rakakura kupfuura 0.2mm, nepo rimwe rine risingasviki 0.2mm.Nekuti mabhodhi ehupamhi asingasviki 0.2mm ane yakanyanya kuremara mwero, zvinoreva kuti mutengo wekugadzira wakakwira kupfuura zvakajairwa.
Chechina, mitengo yacho yakasiyana nekuda kwezvakasiyana zvinodiwa nevatengi.
Izvo zvinodiwa nevatengi zvichakanganisa zvakananga iyo isiri-yakakanganisa mwero mukugadzirwa.Zvakadai sebhodhi rimwechete rinobvumirana neIPC-A-600E kirasi1 inoda 98% yekupasa, nepo zvibvumirano zvekirasi3 zvinoda kungova ne90% yekupasa, zvichikonzera mutengo wakasiyana wefekitori uye pakupedzisira zvinotungamira kukuchinja kwemitengo yechigadzirwa.
Nguva yekutumira: Jun-25-2022
