The PCB Austrian Paul Eisler ne ya ƙirƙira shi, wanda ya fara gabatar da allon kewaye don rediyo a 1936. A cikin 1943, an karɓi Fasahar don amfani da soji a Amurka, kuma a cikin 1948, an amince da ƙirar a hukumance don amfanin kasuwanci a Amurka. Tun daga tsakiyar 1950s, an yi amfani da allunan da’irar da aka buga.

PCB yana ko’ina, ana amfani dashi sosai a cikin sadarwa, likita, sarrafa masana’antu, motoci, sojoji, jirgin sama, sararin sama, mabukaci da sauran masana’antu. A cikin kowane nau’in samfuran lantarki, PCB, azaman babban ɓangaren kayan aikin samfur, yana taka muhimmiyar rawa.

Me yasa PCBS kore?

Idan kun yi hankali, za ku iya gano cewa yawancin PCBS kore ne (baki, shuɗi, ja da sauran launuka ba su da yawa), me yasa wannan? A zahiri, da’irar da kanta kanta launin ruwan kasa ce. Launin koren da muke gani shine abin rufe fuska. Layer juriya ba dole ba ne kore, akwai ja, rawaya, shuɗi, shunayya, baki da sauransu, amma koren ya fi yawa.

Dangane da dalilin yin amfani da Layer mai siyar da kore, akwai mafi yawa masu zuwa:

1) Kore yana da ƙarancin motsawa ga idanu. Tun yarinta, malamin ya gaya mana cewa kore yana da kyau ga idanu, kare ido da yaƙar gajiya. Ma’aikatan samarwa da kulawa ba su da sauƙin gajiya ido yayin da suke kallon allon PCB na dogon lokaci, wanda zai haifar da ƙarancin lalacewar ido.

2) Ƙananan farashi. Domin a lokacin samarwa, koren shine na yau da kullun, adadin siyan fenti na halitta zai yi girma, farashin siyan koren fenti zai yi ƙasa da sauran launuka. A lokaci guda lokacin da samar da taro ta amfani da fenti iri ɗaya kuma na iya rage farashin sauya waya.

3) Lokacin da aka kunna allo akan SMT, yakamata ya bi ta kwalba da guntun sigogi da tabbaci na ƙarshe na AOI. Wajibi ne a daidaita waɗannan hanyoyin ta madaidaicin matsayi, kuma tasirin gano kayan aiki ya fi kyau idan akwai koren kore.

Ta yaya aka tsara PCB?

Don ƙera PCB, dole ne a fara tsara tsarin PCB. Tsarin PCB yana buƙatar dogaro da kayan aikin ƙirar ƙirar EDA da dandamali, kamar Cadence Allegro, Mentor EE, Mentor Pads, Altium Designer, Protel, da sauransu. A halin yanzu, saboda ci gaba da ƙaramin ƙarfi, madaidaiciya da babban saurin samfuran lantarki, ƙirar PCB ba wai kawai tana buƙatar kammala haɗin kewaya sassa daban -daban ba, amma kuma tana buƙatar yin la’akari da ƙalubalen da aka kawo ta babban gudu da ɗimbin yawa.

Tsarin tsari na ƙirar PCB shine kamar haka: shiri na farko design ƙirar tsarin PCB design ƙirar shimfidar PCB setting saitin taƙaitaccen PCB da ƙirar wayoyi optimi inganta haɓakawa da sanya wurin buga allo → duba cibiyar sadarwa ta DRC da duba tsarin → PCB board.

Menene fararen layi akan PCB?

Sau da yawa muna ganin fararen layi akan PCBS. Shin kun taɓa mamakin menene su? A zahiri ana amfani da waɗannan fararen layin don yiwa alama alama da buga mahimman bayanai na PCB akan allon, wanda ake kira “bugun allo.” Ana iya buga shi a allon allo ko buga shi akan PCB ta amfani da firinta inkjet.

Menene abubuwan haɗin akan PCB?

Akwai abubuwa da yawa daban -daban akan PCB, kowannensu yana da aiki daban, wanda tare suke yin aikin PCB gaba ɗaya. Abubuwan da ke cikin PCB sun haɗa da resistors, potentiometers, capacitors, inductors, relays, baturi, fuses, transformers, diodes, transistors, LED, switches, da dai sauransu.

Akwai wayoyi akan PCB?

Don masu farawa, PCBS baya amfani da wayoyi don haɗawa. Wannan yana da ban sha’awa saboda yawancin kayan aikin lantarki da fasaha suna buƙatar wayoyi don haɗawa. Babu wayoyi a cikin PCB, amma ana amfani da wayoyin jan ƙarfe don daidaita halin yanzu a cikin na’urar da haɗa dukkan abubuwan haɗin.