SMT kuiswa kwekugadzirisa, kuburikidza nechiyero kunonzi mutsara wehupenyu hwenzvimbo yekugadzira nzvimbo, mamwe makambani anofanirwa kusvika 95% kuburikidza nechiyero chiri kusvika kune yakajairwa mutsara, saka kuburikidza nechiyero chepamusoro uye chakaderera, chinoratidza kusimba kwehunyanzvi hwenzvimbo yekugadzira, process quality. , kuburikidza nechiyero chinogona kuvandudza kugona kwekambani, kuderedza mutengo wekugadzira, Z yakakosha kukwanisa kuburitsa kugadzikana, kuwedzera kugutsikana kwevatengi.
Tsanangudzo yeakatwasuka-kuburikidza mwero
Chiyero chekusvika pachiyero chekutumira panguva imwe chete.
Yakatwasuka-kuburikidza mwero (First Pass Yield, FPY) inoreva zvakananga: huwandu hwezvigadzirwa zvakanaka zvakapfuura bvunzo dzese kekutanga maitiro acho akaiswa mumaseti zana ePCB mumutsara wekugadzira.Naizvozvo, mushure mekugadzira mutsetse rework kana kugadzirisa kupasa bvunzo zvigadzirwa, kwete chikamu cheyakatwasuka-kuburikidza nechiyero kuverenga.
Ndezvipi zvinhu zvinokanganisa chiyero chakarurama-kuburikidza
1. zvinhu (kusanganisira zvakasiyana-siyana zvemagetsi zvinhu mukutanga, kusanganisira PCB mabhodhi)
2. solder paste
3. kunaka uye mafungiro evashandi
Maitiro ekugadzirisa uye kugadzirisa yakatwasuka-kuburikidza mwero
Yakatwasuka-kuburikidza mwero inoenderana nekuita purofiti uye mararamiro ebhizinesi, saka imwe neimwe chip fekitori iri kubata optimization uye kuvandudzwa kweiyo yakatwasuka-kuburikidza mwero, 100% zvirokwazvo haigone kusvika, asi zvakare tariro yekuve neinodarika 98%.
Naizvozvo, iwe unogona kuvandudza iyo yakatwasuka-kuburikidza chiyero kuburikidza nemamwe anotevera malink.
1. Optimize pcb bhodhi stencil magadzirirwo
Kupfuura 70% yemhando yewelding mu solder paste printing process, inova SMT indasitiri yakapfupisa ruzivo ruzivo, solder paste kudhinda is smt Z yekumberi process process, solder paste offset, kudhonza tip, kudonha, muzviitiko zvakawanda ndiyo stencil dhizaini dhizaini, stencil inogona kunge yakakurisa / diki kuvhurika, stencil gomba madziro rough, etc. ichakonzera iyo yataurwa pamusoro apa yakaipa, iyo inotungamira kune pcb pads panamira yakaipa, zvichikonzera welding Zvakaipa, zvichikanganisa iyo yakatwasuka-kuburikidza. rate.
2. Sarudza mhando yakakodzera ye solder paste
Solder paste musanganiswa wemhando dzakasiyana dzesimbi uye fluxes, yakafanana nemazino, solder paste yakakamurwa kuva 5, 3 uye mamwe marudzi akasiyana e solder paste, zvigadzirwa zvakasiyana zvinoda kusarudza zvakasiyana solder paste kudhinda.
Detailed chinyorwa pamusoro solder paste
SMT chip processing umo marudzi e solder paste, kuchengetedza uye kushandiswa kwekunzwisisa kwekutanga kwezvakatipoteredza
3. Rongedza iyoSMT muchina wokudhindasqueegee angle, kudzvinyirira
Kudhinda muchina scraper kudzvanywa, kona inokanganisa zvinhu zve solder paste, kudzvanywa kwakakura, kunokonzera kushoma solder paste, uye zvinopesana, iyo angle Z yakanaka ndeye 45-60 madhigirii.
4. Reflow ovhenitembiricha curve
Zvinoenderana neyakasiyana zvigadzirwa, gadzirisa preheating nguva, reflow tembiricha curve, uchishandisa choto tembiricha tester, padyo nechaiyo tembiricha yekugadzira, uye wobva watora tembiricha yemoto curve, wobva wagadzirisa tembiricha yevira, kuitira kuti tembiricha yechoto. curve inoenderana neye solder paste uye chigadzirwa soldering zvinodiwa.
Nguva yekutumira: Feb-17-2022