Intambamyi iyo ari yo yose hagati yumwanya wa pin yo guhinduranya urumuri hamwe na PCB ihagaze umwobo bizagira ingaruka kubikorwa bya SMT.Niba kwihanganira bikwiye ari ngombwa, hazabaho ingaruka zimwe zo guhangayikishwa na mashini.Mu gihe cyo gusesengura ikusanyirizo ryokwihanganirana ryerekana pin ya pisine ihinduranya urumuri hamwe nu mwobo wa PCB, ikibanza ntarengwa kiri hagati ya pin ihagaze nu mwobo uhagaze. kuba -0.063mm, ibyo, hariho kwivanga gake.Kubwibyo, harikibazo cyuko pin ya posisiyo yumucyo udashobora kwinjizwa mumwobo wa PCB neza mugihe cya SMT.Ingaruka mbi zirashobora gutahurwa no kugenzura amashusho mbere yo kugurisha ibicuruzwa.Inenge ntoya izasigara inzira ikurikira kandi izatera impagarara.Dukurikije isesengura rya Root Square Sum, igipimo gifite inenge cyari 7153PPM. Birasabwa guhindura ingano no kwihanganira umwobo wa PCB uva kuri 0.7mm + / -0.05mm ukagera kuri 0.8mm + / -0.05mm.Isesengura ryo gukusanya kwihanganira ryongeye gukorwa kuri gahunda nziza.Ibisubizo byerekana ko byibuze byemewe hagati yinkingi yumwanya nu mwobo uhagaze ni + 0.037mm, kandi ibyago byo kwivanga bivaho.
Igihe cyo kohereza: Kanama-18-2021