Ana amfani da tanda mai sake fitowa a cikin Fasahar Dutsen Surface (SMT) masana'anta ko tsarin tattara kayan aikin semiconductor.Yawanci, tanda mai sake kwarara wani yanki ne na layin hada kayan lantarki, gami da bugu da injin sanyawa.Na'urar bugawa tana buga manna solder akan PCB, kuma injin sanyawa yana sanya abubuwan da aka gyara akan manna bugu.
Saita Tushen Solder Mai Maimaitawa
Ƙirƙirar tanda mai sake juyewa yana buƙatar sanin abin da ake amfani da shi a cikin taron.Shin slurry yana buƙatar yanayi na nitrogen (ƙananan oxygen) yayin dumama?Matsakaicin sake kwarara, gami da zafin jiki kololuwa, lokaci sama da liquidus (TAL), da sauransu?Da zarar an san waɗannan halayen tsari, injiniyan tsari zai iya yin aiki don saita girke-girke na tanda tare da manufar cimma takamaiman bayanin martaba.Reflow tanda girke-girke yana nufin saitunan zafin tanda, gami da yanayin zafi na yanki, ƙimar convection, da yawan kwararar gas.Bayanan martaba na sake gudana shine yanayin zafin da hukumar ke "gani" yayin aikin sake gudana.Akwai abubuwa da yawa da za a yi la'akari yayin haɓaka tsarin sake kwarara.Yaya girman allon kewayawa?Shin akwai wasu ƙananan abubuwan da ke jikin allo waɗanda babban convection zai iya lalacewa?Menene matsakaicin iyakar yanayin yanayin bangaren?Shin akwai matsala tare da saurin haɓakar yanayin zafi?Menene siffar bayanin martaba da ake so?
Fasaloli da Fasalolin Tanderun Maimaitawa
Yawancin tanda mai sake buɗewa suna da software na saitin girke-girke na atomatik wanda ke ba da damar mai siyarwar mai sake fitarwa don ƙirƙirar girke-girke na farawa dangane da halaye na allo da ƙayyadaddun solder.Yi nazarin siyar da sake kwarara ta hanyar amfani da na'urar rikodin zafi ko madaidaicin waya ta thermocouple.Za'a iya daidaita madaidaitan madaidaicin saukowa sama/ƙasa dangane da ainihin bayanin martabar thermal vs. solder manna ƙayyadaddun bayanai da ƙayyadaddun yanayin allo/bangaren zafin jiki.Ba tare da saitin girke-girke na atomatik ba, injiniyoyi za su iya amfani da bayanin martaba na tsoho kuma su daidaita girke-girke don mayar da hankali kan tsari ta hanyar bincike.
Lokacin aikawa: Afrilu-17-2023