Ndi Zinthu Ziti Zomwe Ziyenera Kuganiziridwa Pokonza Zipangizo Zinayi za PCB Zomwe Zimagwiritsidwa Ntchito Kawirikawiri?

Pakadali pano, mumakampani opanga zinthu zamagetsi, ma PCB board ndi ofunikira kwambiri ngati gawo lofunikira la zamagetsi. Pali mitundu yosiyanasiyana ya Zithunzi za PCB zomwe zilipo, monga ma PCB boards okwera kwambiri ndi ma PCB boards a microwave, omwe atchuka kale pamsika. Opanga ma PCB ali ndi njira zina zokonzera ndi kupanga mitundu yosiyanasiyana ya zipangizo.

Zithunzi za PCB

Zipangizo zinayi zomwe zimagwiritsidwa ntchito kwambiri pa PCB:

1. FR-4

Iyi ndi code ya mtundu wa zinthu zomwe sizimayaka moto. Ikuyimira mfundo ya zinthu zomwe utomoni uyenera kudzizimitsa wokha ukayaka. Si dzina la zinthu, koma mtundu wa zinthu. Chifukwa chake, pali mitundu yambiri ya zinthu zamtundu wa FR-4 zomwe zimagwiritsidwa ntchito m'mabwalo ambiri ozungulira, koma zambiri ndi zinthu zopangidwa ndi utomoni wa epoxy, filler, ndi galasi.

2. utomoni

Chipangizo chotenthetsera kutentha chomwe chimadutsa mu molekyulu yochuluka ya polymerization. Epoxy resin imagwiritsidwa ntchito kwambiri mumakampani opanga ma PCB.

Makhalidwe Ogwira Ntchito: Ili ndi mphamvu zotetezera magetsi ndipo ingagwiritsidwe ntchito ngati guluu pakati pa zojambulazo zamkuwa ndi zolimbitsa (nsalu yagalasi ya ulusi). Ilinso ndi mphamvu zoteteza magetsi, kukana kutentha, kukana mankhwala, komanso kukana madzi.

3. Galasi fiber nsalu

Zinthu zopanda chilengedwe zomwe zimasakanikirana kutentha kwambiri kenako nkuzizidwa kuti zikhale zinthu zolimba zosapanga makristalo, kenako n’kulukidwa kuchokera ku ulusi wopota ndi weft kuti zipange zinthu zolimbitsa.

Mafotokozedwe a nsalu ya ulusi wa E-glass ndi awa: 106, 1080, 3313, 2116, 7628.

4. Aluminiyamu gawo lapansi

Zoonadi, maziko ake ndi aluminiyamu. Amapangidwa ndi zojambulazo zamkuwa, chotetezera kutentha, ndi pepala la aluminiyamu. Tsopano imagwiritsidwa ntchito kwambiri mumakampani opanga magetsi a LED chifukwa cha mphamvu zake zabwino zoyeretsera kutentha.

Kawirikawiri, kupanga ndi kukonza ma PCB board kuyenera kuganizira zinthu zitatu zazikulu izi:

1. Kusankhidwa kwazinthu

Zipangizo za PCB board zitha kugawidwa m'magulu awiri: zinthu zachilengedwe ndi zinthu zopanda chilengedwe. Chida chilichonse chili ndi ubwino wake wapadera. Chifukwa chake, kusankha mtundu wa chinthucho kuyenera kuganizira makhalidwe angapo monga mphamvu za dielectric, mtundu wa foil yamkuwa, makulidwe a substrate, ndi kuthekera kokonza. Pakati pa zinthu izi, makulidwe a foil yamkuwa pamwamba ndiye vuto lalikulu lomwe limakhudza mawonekedwe a printed circuit boards (PCB). Kawirikawiri, makulidwe akachepa, amakhala opindulitsa kwambiri pakudula ndikuwongolera kulondola kwa mapangidwe.

2. Zokonzera za Njira Yopangira

Malo ogwirira ntchito opanga ma PCB nawonso ndi ofunika kwambiri. Kulamulira kutentha kwa ntchito ndi chinyezi ndi zinthu zofunika kwambiri. Ngati kutentha kwa ntchito kumasintha kwambiri, kungayambitse mabowo pa bolodi kusweka. Ngati chinyezi chambiri chili chokwera kwambiri, chingakhudze kwambiri katundu wa zipangizo zomwe zimayamwa madzi mwamphamvu, makamaka pankhani ya mphamvu ya dielectric. Chifukwa chake, kusunga malo oyenera achilengedwe ndikofunikira popanga ma PCB.

3. Kusankha Njira Yopangira

Kupanga ma PCB kumakhudzidwa mosavuta ndi zinthu zosiyanasiyana. Njira zopangira monga kuchuluka kwa zigawo, njira yobowolera, ndi kukonza zokutira pamwamba zonse zimakhudza ubwino wa PCB yomalizidwa. Chifukwa chake, poganizira njira zopangira ndi malo ozungulira, Kupanga kwa PCB ziyenera kuganiziridwa mogwirizana ndi mawonekedwe a zida zopangira, ndipo zitha kusinthidwa mosavuta malinga ndi mitundu yosiyanasiyana ya PCB ndi zofunikira pakukonza.

Mwachidule, kupanga ma PCB kumafuna kuganizira za kusankha zinthu, makonda a njira zopangira, ndi kusankha njira zopangira. Kuphatikiza apo, kusamalira zipangizo za PCB ndi njira yodulira ndi zinthu zomwe zimafunika kuziganizira mosamala, chifukwa izi zimagwirizana kwambiri ndi kuwala kwa pamwamba pa bolodi losindikizidwa lomalizidwa.