LABARAI

Bari mu ci gaba da koyo game da takamaiman buƙatun aiki. 1. Yanayin aiki 2.Kariyar mutum 3.Kayan aiki da sarrafa kwantena 4.Circuit board handling

A cikin labarin da ya gabata, mun bayyana takamaiman ayyuka da aikace-aikace na sutura masu dacewa. Na gaba, za mu tattauna ƙayyadaddun ƙayyadaddun tsari da buƙatun don amfani da shafi mai dacewa mataki-mataki.

Sanannen abu ne cewa saman wasu samfuran PCB suna da santsi sosai, suna iya nuna haske, kuma galibi sun fi ɗorewa fiye da samfuran PCB na gaba ɗaya. To, ta yaya ake samun wannan? Amsar ita ce, masana'antun suna amfani da sutura ta musamman da ake kira conformal coating. A yau, bari mu kalli yadda suturar da ta dace ta sa PCB ta "haske da haske."

Bari mu ci gaba da koyon yadda ake cire abubuwa daga PCB mai yawan Layer. Cire abubuwan da aka gyara daga allunan da'ira bugu da yawa: Idan kayi amfani da hanyoyin da aka ambata a labarin da ya gabata (ban da hanyar injunan siyar da kwararar siyar), zai yi wahala cirewa kuma yana iya haifar da gazawar haɗin kai cikin sauƙi a tsakanin yadudduka.

Bayan shigar da kayan aikin lantarki akan PCB, ƙila za ku buƙaci cire su daga PCB saboda dalilai kamar rashin daidaituwa ko lalacewa. Koyaya, ga yawancin mutane, cire kayan aikin lantarki ba abu ne mai sauƙi ba. A yau, bari mu koyi yadda ake cire kayan aikin lantarki.

Bari mu ci gaba da koyo game da abubuwan da ke shafar ma'aunin etching a cikin PCB yumbu da kuma yadda ake daidaita abubuwan etching don kera PCB yumbu mai girma.

Yau, bari mu fahimci abin da etching factor yake a cikin yumbu substrates. A cikin PCB yumbu, akwai nau'in PCB da ake kira DBC ceramic PCB, wanda ke nufin abubuwan yumbura na yumbura kai tsaye.

A yau, muna ci gaba da tattauna halaye na aikin 99% aluminum oxide. Idan aka kwatanta da 96% aluminum oxide, 99% aluminum oxide abu ne mai inganci tare da tsabta mai tsabta na aluminum oxide da ƙananan ƙarancin sinadarai. Ana amfani da shi musamman a cikin PCB yumbu wanda ke buƙatar ingantacciyar inji, lantarki, aikin zafi, ko juriya na lalata don jure matsanancin yanayin aiki.

Bari mu ci gaba da koyon bambanci tsakanin 99% aluminum oxide da 96% aluminum oxide. Za mu fara daga 96% aluminum oxide......

A cikin ƙirar PCB na lantarki mai inganci, zaɓin kayan da ya dace yana da mahimmanci. Daga cikin zaɓuɓɓukan da ake da su daban-daban, aluminum oxide (Al2O3) ya fito waje a matsayin kyakkyawan zaɓi don PCB yumbu saboda fitattun kaddarorin thermoelectric. Duk da haka, ba duk abubuwan da ke cikin aluminum oxide ba ne aka halicce su daidai. A cikin wannan da kuma labaran labarai da yawa masu zuwa, za mu shiga cikin bambance-bambancen bambance-bambance tsakanin kayan bambance-bambancen guda biyu: 96% aluminum oxide da 99% aluminum oxide. Za mu bincika keɓancewa da fa'idodin kayan biyu daban-daban.

Bari mu ci gaba da koyo game da wasu hanyoyin gwaji guda uku: Gwajin ICT, Gwajin Aiki, da Binciken X-RAY.

A yau, za mu gabatar da hanyoyin gwaji guda huɗu don PCBA bayan sanyawa SMT: Binciken Abu na Farko, Ma'aunin LCR, Binciken AOI, da Gwajin Binciken Flying.