A cikin wane yanayi kuke saita yanayin zafi daban-daban don TOP da abubuwan dumama ƙasa na tanda mai sake fitowa?

A mafi yawan yanayi, ma'aunin zafi na tanda mai sake kwarara iri ɗaya ne ga abubuwan dumama Sama da ƙasa a yanki ɗaya.Amma akwai lokuta na musamman inda ya zama dole don amfani da saitunan zafin jiki daban-daban zuwa abubuwan TOP da BOTTOM.Injiniyan tsarin SMT yakamata ya sake duba takamaiman buƙatun hukumar don tantance saitunan daidai.Gabaɗaya, ga wasu ƙa'idodi don saita yanayin zafi mai zafi:

1. Idan akwai ta hanyar ramuka (TH) akan allo, kuma kuna son sake cika su tare da abubuwan SMT tare, kuna iya yin la'akari da ƙara yawan zafin jiki na ƙasa saboda abubuwan TH zasu toshe zazzagewar iska mai zafi a gefen sama, hana pads a ƙarƙashin abubuwan TH daga karɓar isasshen zafi don yin haɗin gwiwa mai kyau.
2. Yawancin gidaje masu haɗin TH an yi su ne daga filastik wanda zai narke da zarar zafin jiki ya yi yawa.Dole ne injiniyan tsari ya fara yin gwaji kuma ya duba sakamakon.
3. Idan akwai manyan abubuwan SMT kamar inductor da capacitors na aluminium a kan jirgin, zaku kuma buƙatar la'akari da saita yanayin zafi daban-daban don dalili ɗaya kamar masu haɗin TH.Injiniyan yana buƙatar tattara bayanan zafi na takamaiman aikace-aikacen allo kuma ya daidaita bayanin yanayin zafi sau da yawa don tantance madaidaicin yanayin zafi.
4. Idan akwai abubuwa a bangarorin biyu na allo, yana yiwuwa a saita yanayin zafi daban-daban kuma.

A ƙarshe, injiniyan tsari dole ne ya bincika kuma ya inganta bayanin martabar thermal don kowane takamaiman allo.Hakanan ya kamata injiniyoyi masu inganci su shiga don bincika haɗin gwiwar solder.Ana iya amfani da injin duba x-ray don ƙarin bincike.