A cikin aikin hukumar da'ira, ana kuma kiran gadar mai koren mai da gadar abin rufe fuska da madatsar ruwan solder.“Maɗaukaki ne na keɓewa” wanda masana'antar allon kewayawa ta yi don hana gajeriyar da'irar fil na abubuwan SMD.Idan kana so ka sarrafa FPC soft Board (FPC m kewaye hukumar) koren mai gada, kana bukatar ka sarrafa shi a lokacin solder mask aiwatar.Akwai nau'i biyu na FPC soft board solder kayan masarufi: tawada da murfin fim.
Matsayin FPC m kewaye hukumar solder mask
1. Ƙunƙarar rufi;
2. Kare layin don hana tabon layi;
3. Hana al'amuran waje daga fadawa cikin da'ira da haifar da gajeriyar da'ira.
Tawada da ake amfani da ita don juriya na solder gabaɗaya yana ɗaukar hoto, wanda ake kira tawada ruwan hotuna.Gabaɗaya akwai kore, baki, fari, ja, rawaya, shuɗi, da sauransu. Fim ɗin murfin, gabaɗaya rawaya, baki da fari.Baƙar fata yana da kyawawan kaddarorin shading kuma farin yana da babban abin gani.Yana iya maye gurbin farin mai baƙar fata don allo mai laushi na FPC (FPC m kewaye allon).FPC taushi allo (FPC m kewaye allo) za a iya amfani da tawada solder mask ko murfin fim solder mask.