Kodi chovala cha mpira ndi chiani?

Mpira wa msipu ndi chimodzi mwazinthu zodziwika bwino zomwe zimapezeka pogwiritsa ntchito ukadaulo wa Mount ku bolodi ladera losindikizidwa. Zowona kukhala ndi dzina lawo, ndi mpira wa walonda womwe wapasiyana ndi thupi lalikulu lomwe limapanga cholumikizira cholumikizira pa bolodi.

Mipira ya asitikali ndi zinthu zomwe zimachitika, kutanthauza kuti ngati azungulira mozungulira madera osindikizidwa, amatha kuyambitsa zazifupi zamagetsi, zomwe zimakhudza kudalirika kwa bolodi ladera losindikizidwa.

Pa aIPC-A-610, a PCB with more than 5 solder balls (<=0.13mm) within 600mm² is defective, as a diameter larger than 0.13mm violates the minimum electrical clearance principle. Komabe, ngakhale mabungwe amenewa anena kuti mipira ya alonda ija ikhoza kusiyidwa ngati akakamizidwa mosatekeseka, palibe njira yeniyeni yodziwira zowona ngati ali.

Momwe mungapangire mipira yankhondo musanachitike

Mipira ya msiriva imatha chifukwa cha zinthu zosiyanasiyana, zopezera matendawa pamavuto ena. Nthawi zina, amatha kukhala opanda pake. Nawa ndi zifukwa zochepa zomwe asitikali a mpira amapanga pamsonkhano wa PCB.

Chinyezi-KunyowaIli ndi chinthu chimodzi chachikulu kwambiri cha opanga madera osindikizira lero. Kupatula pa popcorn zotsatira ndi microscopic zolimba, zitha kupangitsanso mipira yaukadaulo kuti ikhale chifukwa cha mpweya kapena madzi. Onetsetsani kuti ma boani osindikizidwa amauma musanagwiritse ntchito msirikali, kapena kusintha kuti athe kudziletsa chinyezi pazopangira.

Walonda phala- Mavuto mu msirikali amatulutsa payokha amatha kupangitsa kuti msipuyo azipanga. Chifukwa chake, sililangizidwa kuti agwiritsenso ntchito wogulitsa kapena kulola kugwiritsidwa ntchito kwa msirikali kudutsa tsiku lotha ntchito. Wogulitsa wa asiti amayeneranso kusungidwa bwino ndikuthandizidwa ndi mawiti a wopanga. Mafuta osungunuka madzi amathanso kuperekanso chinyontho chochuluka.

Mapangidwe a Steccil- Kupukutira kwa msipu kumatha kuchitika pamene cholembera chatsukidwa, kapena ngati wosankha wasokonekera. Chifukwa chake, kudaliraZojambula zosindikizidwa zosindikizidwaNdipo nyumba yamsonkhano ingakuthandizeni kupewa izi.

Chotsani Mbiri Yabwino- Kusungunulira kosinthika kumafunikira kuti atuluke pamalo oyenera. Akukwera kwambiriKapenanso kutentha kumatha kubweretsa mapangidwe a msirikali. Kuti muthane ndi izi, onetsetsani kuti mtengo wanu umakhala wochepera 1.5 ° C / sec kuchokera kutentha kwa chipinda mpaka 150 c.

Wogulitsa mpira

Utsi mu ma systemsndi njira yabwino kwambiri yochotsera balo lankhondo. Makinawa amagwiritsa ntchito maphokoso othamanga kwambiri omwe amachotsa mipira ya ogulitsa kuchokera pamwamba pa bolodi ladera kuthokoza chifukwa cha zovuta zawo.

Komabe, mtundu uwu wochotsedwawo sikogwira ntchito ngati muzu umayambitsa kuchokera pa PCB ndi pre-starlow starth amatulutsa zovuta.

Zotsatira zake, ndibwino kuti muzindikire zomwe zimayambitsa mipira wa starder mochedwa, chifukwa njira izi zitha kusintha popanga pCB yanu. Kupewa kumapereka zotsatira zabwino kwambiri.

Dumphani zofooka ndikuganiza Inc

Pofotokoza, tikumvetsa kuti zokumana nazo ndi njira yabwino kwambiri yopewera mabisiki omwe amabwera ndi nsalu za PCB ndi msonkhano. Timapereka bwino kwambiri pantchito yodalirika pantchito yankhondo ndi awespace, ndikupereka kusintha kwachangu pa prototyping ndi kupanga.

Kodi mwakonzeka kuwona kuwunika?Lumikizanani nafe leroKuti mumve zambiri pazinthu za PCB ndi njira zachigawo.