PCB dera bolodi inki imagawidwa m’magulu atatu, motsatana, PCB yolumikizira mzere, inki yowotcherera ndi inki yolemba. Ena ndi mafuta amtundu wa kaboni (omwe amatchedwanso kuti inki yopangira mpweya), mafuta a siliva omwe amatchedwanso (omwe amatchedwanso operekera siliva), mitundu iwiri yotsiriza yamiyesoyo ndi yocheperako.

PCB photosensitive etching inki

Choyambirira, inki yotsitsa ya mzere wa PCB. Zomwe zimayambira pa bolodi la PCB ndizovala zamkuwa, ndipo pamakhala zosanjikiza zamkuwa. Imafunikira inki yolimba pazosindikiza pazenera, kenako imachiritsidwa ndikuwonekera, ndikuchotsa malo osadziwika, kenako imasindikizidwa. Izi mzere etching inki, makamaka pofuna kuteteza, etching mzere wabwino, kumbuyo ntchito njira sodium hydroxide amadzimadzi kuchotsa inki. Makina ambiri okhala ndi bolodi loyenda ndi labuluu, motero amatchedwanso mafuta abuluu kapena mafuta abuluu osavuta, zida zina zosapanga dzimbiri zimagwiritsanso ntchito inkiyi, anthu payokha amadzitcha kuti zomatira, inde, ndizosiyana kwambiri ndi mbale yosindikiza ndi guluu wanzeru.

Awiri, inki ya PCB yowotcherera

Mtundu wachiwiri wa inki umayang’ana, ndiye kuti, inki ya PCB yolumikizira dera, yomwe imadziwikanso kuti inki yowotcherera. Inki ya Solder ndi gulu lofala kwambiri la PCB lomwe limagwiritsa ntchito inki. Mzere wa utoto wobiriwira womwe timawona pa bolodi la dera ndikutsekemera kwa inki.

Malinga ndi momwe amachiritsira, inki ya solder ili ndi inki yomwe ikukula, kutentha inki kutentha, ndi kuwala kwa UV kumachiritsa inki ya UV. Ndipo malinga ndi mtundu wa mbaleyo, ndi PCB inki yolimba yolumikiza mbale, inki ya FPC yofewa, ndi inki ya aluminium mbale, inki ya aluminium imatha kugwiritsidwanso ntchito ngati mbale ya ceramic.

Inki ya photosensitive ndi UV kuwala kuchiritsa, kusindikiza pazenera, kuyenera kuphika musanachitike. Nthawi zambiri amagwiritsidwa ntchito kupanga mitundu yonse ya bolodi yolimba ya PCB, bolodi lofewa lokhala ndi bolodi loyenda bwino kuphatikiza filimu yowuma idzagwiritsanso ntchito inki ya solder. Ndi thermosetting inki, imasindikizidwa pambuyo pophika. Common ndi foni inki telefoni bolodi inki, kuwala Mzere bolodi woyera kuwotcherera inki. Inki ya UV, mafuta obiriwira a UV ndiofala kwambiri, zofunikira zambiri sizoyang’anira mabwalo azitali kwambiri kapena zotulutsa zazikuluzikulu zama board azogwiritsira ntchito zitha kugwiritsidwa ntchito. Inki ya UV, inki ya photosensitive, inki ya thermosetting mitundu itatu, inki ya photosensitive ndiyokwera kwambiri, kutsatiridwa ndi inki ya thermosetting, kenako inki ya UV, nthawi zambiri, yolumikizira inki ya UV idzakhala yosauka, inki yolondola kwambiri ndiyokwera kwambiri.

Zitatu, inki ya PCB

Mtundu wachitatu wa inki ndi inki yolemba, inki yosindikiza posindikiza bolodi, makamaka kusindikiza zilembo ndi zilembo. Mtundu wamba wa inki ndi yoyera komanso yakuda, yoyera imagwiritsidwa ntchito mochulukira, pafupifupi gulu lonse loyang’anira kuphatikiza chosanjikiza choyera chimasindikizidwa ndi inki yoyera. Gawo la Aluminiyamu, bolodi lazingwe, kuwunika, ndi zina zambiri, chifukwa chogwiritsa ntchito inki yoyera yoyera, motero otchulidwa pamwambapa amagwiritsa ntchito inki yakuda.

Omwe amapanga ma board board chifukwa chakusowa kwa makasitomala, adzagwiritsa ntchito inki yachikaso kapena ina, koma chifukwa cha board board yolembera mlingo wake ndi wocheperako, opanga inki ambiri sakufuna kupita kukapanga, chifukwa chake mawuwo mukufuna inki yapaderadera ndiyovuta kupeza, onetsetsani inki yowotcherera kuti mupange umboni, chilema ndi inki yowotcherera polemba inki, Padzakhala chodabwitsa cha kutayika kwa mafuta.

Inki yamalemba makamaka inki ya thermosetting, ena amagwiritsa ntchito UV akuchiritsa inki. Ambiri opanga inki apanga inki yoyera yoyera ya UV, monga Kawashima UVM-5 ndi UV yochiritsa mafuta oyera.

Kupanga ma board a PCB kumagwiritsidwa ntchito makamaka mitundu itatu pamwambapa ya inki, ndiye ntchito zake ndi mitundu iti ya inki iti?

A inki etching enching makamaka ntchito kuteteza zojambulazo mkuwa pa bolodi dera amene safuna kukhazikika. Zili ndi zotsatira za kukana kutentha, asidi ndi kukana kwa alkali ndi kukana electroplating.

Awiri, inki yowotcherera imagwiritsidwanso ntchito ngati gawo loteteza, kutchinjiriza, kukana kuyambiranso, kukana golide, golide, malata, siliva ndi utsi wamchere. Ikhoza kutetezanso zojambulazo zamkuwa pamakina oyendetsera ntchito mtsogolo ndikuwonjezera moyo wa board.

Chachitatu, udindo wa inki yolemba poyerekeza ndi awiri am’mbuyomu, ntchitoyi siyokulirapo, makamaka ngati chizindikiro kapena zithunzi zomwe mungagwiritse ntchito.