Ana iya raba tsarin samar da PCBA zuwa manyan matakai da yawa:
Tsarin PCB da haɓaka → SMT faci sarrafa → DIP toshe aiki → PCBA gwajin → anti-shafi uku → gama samfurin taron.
Na farko, PCB ƙira da haɓakawa
1.Buƙatar samfur
Wani makirci na iya samun ƙimar riba a kasuwa na yanzu, ko masu sha'awar suna son kammala nasu ƙirar DIY, sannan za a samar da buƙatun samfurin daidai;
2. Zane da haɓakawa
Haɗe tare da buƙatun samfurin abokin ciniki, injiniyoyin R & D za su zaɓi guntu daidai gwargwado da haɗin keɓan waje na PCB mafita don cimma buƙatun samfur, wannan tsari yana da tsayi, abubuwan da ke ciki a nan za a bayyana su daban;
3, samfurin gwaji na samarwa
Bayan haɓakawa da ƙira na PCB na farko, mai siye zai sayi kayan da suka dace daidai da BOM da aka bayar ta hanyar bincike da haɓakawa don aiwatar da samarwa da lalata samfuran, kuma an rarraba samfuran gwaji zuwa tabbaci (10pcs), na biyu proofing (10pcs), kananan tsari samar da gwaji (50pcs ~ 100pcs), babban tsari samar da gwaji (100pcs ~ 3001pcs), sa'an nan zai shiga taro samar mataki.
Na biyu, SMT patch sarrafa
An raba jeri na sarrafa facin SMT zuwa: kayan yin burodi → samun damar manna solder → SPI → hawa → reflow soldering → AOI → gyarawa
1. Kayan toya
Don kwakwalwan kwamfuta, allon PCB, kayayyaki da kayayyaki na musamman waɗanda suka kasance a hannun jari fiye da watanni 3, yakamata a gasa su a 120 ℃ 24H.Don microphones MIC, fitilun LED da sauran abubuwan da ba su da juriya ga zafin jiki, yakamata a toya su a 60 ℃ 24H.
2, samun damar manna solder (komawa zafin jiki → motsawa → amfani)
Domin ana adana man solder ɗinmu a cikin yanayin 2 ~ 10 ℃ na dogon lokaci, ana buƙatar mayar da shi zuwa maganin zafin jiki kafin amfani da shi, kuma bayan an dawo da zafin jiki, yana buƙatar motsawa tare da blender, sa'an nan kuma zai iya. a buga.
3. Gano SPI3D
Bayan da aka buga man siyar a kan allon kewayawa, PCB zai isa na'urar SPI ta hanyar bel mai ɗaukar kaya, kuma SPI za ta gano kauri, faɗin, tsayin bugu na man na'urar da kuma kyakkyawan yanayin tin.
4. Dutsen
Bayan PCB ya gudana zuwa na'urar SMT, injin zai zaɓi kayan da ya dace kuma ya liƙa shi zuwa lambar bit daidai ta hanyar shirin da aka saita;
5. Sake walda
A pcb cike da abu gudana zuwa gaban reflow waldi, da kuma wuce ta goma mataki zazzabi zones daga 148 ℃ zuwa 252 ℃ bi da bi, a amince bonding mu aka gyara da PCB jirgin tare;
6, gwajin AOI akan layi
AOI na'urar ganowa ta atomatik ce, wanda zai iya duba allon PCB kawai daga cikin tanderu ta hanyar sikanin ma'ana mai girma, kuma yana iya bincika ko akwai ƙarancin abu akan allon PCB, ko an canza kayan, ko haɗin haɗin gwiwa yana haɗa tsakanin. abubuwan da aka gyara da kuma ko kwamfutar hannu an biya diyya.
7. Gyara
Don matsalolin da aka samo akan allon PCB a cikin AOI ko da hannu, injiniyan kulawa yana buƙatar gyara shi, kuma za'a aika allon PCB ɗin da aka gyara zuwa toshewar DIP tare da allon layi na yau da kullun.
Uku, DIP plug-in
An raba tsarin toshewar DIP zuwa: siffata → plug-in → soldering → yankan ƙafa → riƙon kwano → farantin wanki → ingantaccen dubawa
1. Fida Fiji
Abubuwan toshe-in da muka saya duk kayan aiki ne na yau da kullun, kuma tsayin fil ɗin kayan da muke buƙata ya bambanta, don haka muna buƙatar siffata ƙafafu na kayan a gaba, ta yadda tsayi da siffar ƙafafu sun dace da mu. don aiwatar da plug-in ko bayan walda.
2. Plug-in
Za a shigar da abubuwan da aka gama bisa ga samfurin da ya dace;
3, sayar da igiyar ruwa
An sanya farantin da aka saka akan jigon zuwa gaban siyar da igiyar igiyar ruwa.Da farko, za a fesa juyi a ƙasa don taimakawa walda.Lokacin da farantin ya zo saman murhun murhun, ruwan gwangwani a cikin tanderun zai yi iyo ya tuntubi fil.
4. Yanke ƙafafu
Saboda kayan aikin da aka riga aka tsara za su sami wasu takamaiman buƙatu don keɓance fil mai ɗan tsayi kaɗan, ko kayan da ke shigowa da kansa bai dace da aiwatarwa ba, za a gyara fil ɗin zuwa tsayin da ya dace ta hanyar datsa hannu;
5. Rike tin
Ana iya samun wasu munanan al'amura kamar ramuka, ramuka, walda da aka rasa, walda ta karya da sauransu a cikin filayen allon PCB ɗin mu bayan tanderu.Likitan mu zai gyara su ta hanyar gyaran hannu.
6. Wanke allo
Bayan sayar da igiyar igiyar ruwa, gyare-gyare da sauran hanyoyin haɗin gaba, za a sami wasu ragowar ruwa ko wasu kayan da aka sata a haɗe zuwa matsayin fil na hukumar PCB, wanda ke buƙatar ma'aikatanmu su tsaftace samansa;
7. Ingancin inganci
Kuskuren abubuwan haɗin PCB da duba yoyo, kwamitin PCB mara cancanta yana buƙatar gyara, har sai ya cancanta don ci gaba zuwa mataki na gaba;
4. Gwajin PCBA
Ana iya raba gwajin PCBA zuwa gwajin ICT, gwajin FCT, gwajin tsufa, gwajin girgiza, da sauransu
Gwajin PCBA babban gwaji ne, bisa ga samfuran daban-daban, buƙatun abokin ciniki daban-daban, hanyoyin gwajin da aka yi amfani da su sun bambanta.Gwajin ICT shine don gano yanayin walda na abubuwan da aka gyara da yanayin kashe layin, yayin da gwajin FCT shine gano sigogin shigarwa da fitarwa na hukumar PCBA don bincika ko sun cika buƙatun.
Biyar: PCBA uku anti-shafi
PCBA matakai uku na hana sutura sune: gefen gogewa A → busasshen busasshen → gefen gogewa B → maganin zafin dakin 5. Fesa kauri:
0.1mm-0.3mm6.All shafi ayyuka za a za'ayi a wani zafin jiki ba kasa da 16 ℃ da dangi zafi kasa 75%.PCBA uku anti-shafi ne har yanzu da yawa, musamman ma wasu zafin jiki da zafi mafi m yanayi, PCBA shafi uku anti-paint yana da m rufi, danshi, yayyo, girgiza, kura, lalata, anti-tsufa, anti-mildew, anti- sassa sako-sako da kuma rufi corona juriya yi, na iya tsawanta lokacin ajiya na PCBA, kadaici na waje yashwa, gurbatawa da sauransu.Hanyar fesa ita ce hanyar shafa da aka fi amfani da ita a masana'antu.
Haɗin samfurin da aka gama
7.The rufaffiyar PCBA jirgin tare da gwajin Ok an taru don harsashi, sa'an nan dukan inji ne tsufa da gwaji, da kuma kayayyakin da ba tare da matsaloli ta hanyar tsufa gwajin za a iya aikawa.
Samar da PCBA shine hanyar haɗi zuwa hanyar haɗi.Duk wani matsala a cikin tsarin samar da pcba zai yi tasiri sosai a kan ingancin gabaɗaya, kuma kowane tsari yana buƙatar kulawa sosai.