Buga allon da'ira a cikin tsarin waldawar juriya na rana, shine buguwar allo bayan juriyar walda na allon da'irar da aka buga tare da farantin hoto za a rufe shi da kushin da ke kan allon da aka buga, don kada a fallasa shi. zuwa ultraviolet radiation a cikin daukan hotuna, da waldi juriya m Layer bayan ultraviolet haske sakawa a iska mai guba da wani karin sturdy a haɗe zuwa saman da buga kewaye hukumar, da kushin ba batun ultraviolet radiation, za ka iya bayyana da jan karfe waldi farantin, sabõda haka, da cewa. a cikin iska mai zafi matakin matakin gubar a kan tin.
1.Tsarin yin burodi
Manufar kafin yin burodi shine don ƙafe da sauran ƙarfi da ke cikin tawada, ta yadda fim ɗin ya zama marar sanda. Don tawada daban-daban, zafin zafin da aka rigaya kafin bushewa da lokaci sun bambanta. Yanayin zafin jiki kafin bushewa ya yi yawa, ko lokacin bushewa ya yi tsayi sosai, zai haifar da haɓaka mara kyau, rage ƙuduri; pre-bushe lokaci ne ma takaice, ko da yawan zafin jiki ne ma low, a cikin daukan hotuna zai tsaya ga korau, a cikin ci gaban da solder resist film za a eroded da sodium carbonate bayani, sakamakon asarar surface luster ko solder tsayayya. fadada fim da faɗuwa.
2.Bayyana
Bayyanawa shine mabuɗin ga duka tsari. Idan bayyanar ta wuce kima, saboda watsawar haske, zane-zane ko layi na gefen soldermask da amsawar haske (yafi soldermask kunshe a cikin polymers masu haske da kuma amsawar haske), ƙarni na fim din da ya rage, wanda ya rage digiri. na ƙuduri, wanda ya haifar da haɓakar ƙananan zane-zane, ƙananan layi; idan bayyanar bai isa ba, sakamakon shine akasin halin da ake ciki a sama, haɓakar zane-zane ya zama mafi girma, layi mai kauri. Ana iya nuna wannan yanayin ta hanyar gwajin: lokacin bayyanarwa yana da tsawo, girman layin da aka auna shine rashin haƙuri mara kyau; lokacin bayyanarwa gajere ne, faɗin layin da aka auna shine ingantaccen haƙuri. A cikin ainihin tsari, zaku iya zaɓar "mai haɗa wutar lantarki mai haske" don ƙayyade mafi kyawun lokacin bayyanarwa.
3. Daidaita dankowar tawada
Dankin tawada photoresist yawanci ana sarrafa shi ta hanyar rabon hardener zuwa babban wakili da adadin diluent da aka ƙara. Idan adadin mai taurin bai isa ba, zai iya haifar da rashin daidaituwar halayen tawada.
