Uninzi lwabathengi befektri ye-elektroniki babhidekile malunga nexabiso lePCBs.kwanabanye abantu abaneminyaka emininzi yamava kwi-PCB yokuthenga banokungasiqondi ngokupheleleyo isizathu sokuqala.Ngapha koko, ixabiso lePCB liqulunqwe zezi zinto zilandelayo:
Okokuqala, amaxabiso ahlukile ngenxa yezinto ezahlukeneyo ezisetyenziswa kwi-PCB.
Ukuthatha iileya eziqhelekileyo eziphindwe kabini pcb njengomzekelo, i-laminate iyahluka ukusuka kwi-FR-4, i-CEM-3, njl njl kunye nobubanzi obusuka ku-0.2mm ukuya kwi-3.6mm.Ubunzima bobhedu buhluka ukusuka kwi-0.5Oz ukuya kwi-6Oz, konke oku kubangele umahluko omkhulu wexabiso.Amaxabiso e-inki ye-soldermask nawo ahluke kwizinto eziqhelekileyo ze-inki ze-thermosetting kunye ne-photosensitive eluhlaza izinto ze-inki.
Okwesibini, amaxabiso ahluke ngenxa yeenkqubo ezahlukeneyo zemveliso.
Iinkqubo ezahlukeneyo zemveliso zikhokelela kwiindleko ezahlukeneyo.Njengebhodi efakwe ngegolide kunye nebhodi efakwe i-tin-plated, imilo yomzila kunye nokubetha, ukusetyenziswa kwemigca yesikrini sesilika kunye nemigca yefilimu eyomileyo iya kwenza iindleko ezahlukeneyo, okukhokelela ekuhlukeni kwexabiso.
Okwesithathu, amaxabiso ahluke ngenxa yobunzima kunye nokuxinana.
PCB iya kuba iindleko ezahlukeneyo nokuba izixhobo kunye nenkqubo ziyafana, kodwa kunye nobunzima ezahlukeneyo kunye noxinaniso.Ngokomzekelo, ukuba kukho imingxuma eyi-1000 kwiibhodi zombini zeesekethe, ububanzi bomngxuma webhodi enye bukhulu kuno-0.6mm kunye nobubanzi bomngxuma welinye ibhodi bungaphantsi kwe-0.6mm, okuya kwenza iindleko ezahlukeneyo zokomba.Ukuba iibhodi zeesekethe ezimbini ziyafana kwezinye izicelo, kodwa ububanzi bomgca buhluke kwakhona kubangela iindleko ezahlukeneyo, ezifana nobubanzi bebhodi enye bukhulu kune-0.2mm, ngelixa enye ingaphantsi kwe-0.2mm.Ngenxa yokuba iibhodi ububanzi ngaphantsi kwe-0.2mm zinezinga eliphezulu elineziphene, oku kuthetha ukuba ixabiso lemveliso liphezulu kunesiqhelo.
Okwesine, amaxabiso ahluka ngenxa yeemfuno ezahlukeneyo zabathengi.
Iimfuno zabathengi ziya kuchaphazela ngokuthe ngqo izinga elingenasiphako kwimveliso.Okufana nebhodi enye izivumelwano IPC-A-600E class1 ifuna 98% izinga lokupasa, ngelixa ngokuvumelana class3 kufuna kuphela 90% ireyithi yokupasa, okubangela iindleko ezahlukeneyo kumzi-mveliso kwaye ekugqibeleni kukhokelele utshintsho kumaxabiso emveliso.
Ixesha lokuposa: Jun-25-2022
