PCBA masana'antu tsari ya shafi PCB hukumar masana'antu, bangaren saye da dubawa, guntu aiki, toshe-in aiki, shirin kone-a, gwaji, tsufa da kuma jerin matakai, wadata da kuma masana'antu sarkar ne in mun gwada da tsawo, duk wani lahani a daya mahada zai haifar. babban adadin kwamitin PCBA mara kyau, yana haifar da sakamako mai tsanani.Don haka, yana da mahimmanci musamman don sarrafa dukkan tsarin masana'antar PCBA.Wannan labarin yana mai da hankali kan abubuwan da ke gaba na bincike.
1. PCB hukumar masana'anta
Karɓi PCBA umarni da aka gudanar pre-samar taron ne musamman da muhimmanci, yafi ga PCB Gerber fayil ga aiwatar bincike, da kuma niyya ga abokan ciniki sallama manufacturability rahotanni, da yawa kananan masana'antu ba mayar da hankali a kan wannan, amma sau da yawa yiwuwa ga ingancin matsaloli lalacewa ta hanyar matalauta PCB. ƙira, yana haifar da adadi mai yawa na sake yin aiki da gyaran gyare-gyare.Production ba togiya, kana bukatar ka yi tunani sau biyu kafin ka yi aiki da kuma yi mai kyau aiki a gaba.Misali, lokacin da ake nazarin fayilolin PCB, ga wasu ƙanƙanta kuma masu saurin gazawar kayan, tabbatar da guje wa manyan abubuwa a cikin shimfidar tsari, don sake yin aikin ƙarfe mai sauƙin aiki;Tazarar ramin PCB da alakar ɗaukar nauyin hukumar, ba sa lankwasawa ko karaya;wiring ko yin la'akari da tsangwama na sigina mai girma, impedance da sauran mahimman abubuwan.
2. Sayen abubuwa da dubawa
Sayen kayan aikin yana buƙatar kulawa mai ƙarfi na tashar, dole ne ya kasance daga manyan yan kasuwa da karɓar masana'anta na asali, 100% don gujewa kayan hannu na biyu da kayan karya.Bugu da kari, saita wuraren duba kayan da ke shigowa na musamman, bincikar abubuwa masu zuwa don tabbatar da cewa abubuwan ba su da laifi.
PCB:reflow tandaGwajin zafin jiki, hana layin tashi, ko an toshe ramin ko tawada mai yoyo, ko allon yana lankwasa, da dai sauransu.
IC: duba ko siliki na siliki da BOM daidai suke, kuma ku kiyaye yawan zafin jiki da zafi akai-akai.
Sauran kayan gama gari: duba siliki, bayyanar, ƙimar ma'aunin wuta, da sauransu.
Abubuwan dubawa daidai da hanyar samfurin, adadin 1-3% gabaɗaya
3. Faci sarrafa
Solder manna bugu da reflow tanda zazzabi iko ne key batu, bukatar yin amfani da mai kyau inganci da saduwa da tsari bukatun Laser stencil yana da matukar muhimmanci.Dangane da bukatun PCB, wani ɓangare na buƙatar ƙara ko rage ramin stencil, ko amfani da ramukan U-dimbin yawa, gwargwadon buƙatun tsari don samar da stencils.Sake jujjuya zafin tanda da sarrafa sauri yana da mahimmanci don shigar da manna mai siyar da amincin solder, bisa ga ka'idojin aiki na SOP na yau da kullun don sarrafawa.Bugu da kari, da bukatar tsananin aiwatar daInjin SMT AOIdubawa don rage girman abubuwan ɗan adam da ke haifar da mummuna.
4. Gudanar da shigarwa
Tsarin toshewa, don ƙirƙira ƙirar ƙira mai ƙarfi shine maɓalli.Yadda za a yi amfani da mold zai iya haɓaka yiwuwar samar da samfurori masu kyau bayan tanda, wanda shine injiniyoyin PE dole ne su ci gaba da yin aiki da kwarewa a cikin tsari.
5. Shirin harbe-harbe
A cikin rahoton DFM na farko, zaku iya ba da shawara ga abokin ciniki don saita wasu wuraren gwaji (Matsayin Gwaji) akan PCB, manufar ita ce gwada PCB da na'urar da'ira ta PCBA bayan sayar da duk abubuwan da aka gyara.Idan akwai sharuɗɗa, zaku iya tambayar abokin ciniki don samar da shirin kuma ku ƙone shirin a cikin babban iko na IC ta hanyar masu ƙonewa (kamar ST-LINK, J-LINK, da sauransu), don gwada canje-canjen aikin da aka kawo. ta hanyoyi daban-daban na taɓawa da hankali, don haka gwada amincin aikin gabaɗayan PCBA.
6. PCBA gwajin allo
Don umarni tare da buƙatun gwaji na PCBA, babban abun ciki na gwajin ya ƙunshi ICT (A cikin Gwajin kewayawa), FCT (Gwajin Aiki), Gwajin Konewa (gwajin tsufa), gwajin zafin jiki da zafi, gwajin faduwa, da sauransu, musamman bisa ga gwajin abokin ciniki. aikin shirin da bayanan taƙaitaccen rahoto na iya zama.
Lokacin aikawa: Maris-07-2022