Enye yeziganeko eziqhelekileyo ze PCB i-inki kwimveliso eyiyo kukuhla kwe-inki yemaski ye-solder kwibhodi yesekethe. Emva koko yintoni imbangela ye-inki kwibhodi yesiphaluka? Ungayiphepha njani i-PCB solder ukumelana ne-inki yokungena

Kukho izizathu ezininzi zokuhlanjululwa kwe-inki yemaski ye-solder kwibhodi yesiphaluka. Ngokuqhelekileyo, kukho ezi zizathu zintathu zilandelayo. Nalu uhlalutyo lwezizathu ezithathu kuye wonke umntu, kunye nendlela yokusombulula ingxaki yokuthintela ukuwa kwe-solder.

1. Xa ibhodi yesekethe ye-PCB iprintwa nge-inki yokuxhathisa i-solder, unyango lwangaphambili alukho endaweni. Umzekelo: Kukho amabala, uthuli kumphezulu webhodi PCB, okanye ezinye iindawo oxidized.

Ukusombulula le ngxaki kokona kulula. Kufuneka wenze kuphela unyango lwangaphambili kwaye ulwenze kwakhona. Zama ukucoca amabala, ubumdaka okanye oxide umaleko kumphezulu webhodi yesekethe PCB ukuqinisekisa ukuba ibhodi yesekethe ishicilelwe kwi solder ukumelana inki. Umphezulu ucocekile.

2. Kwakhona kunokwenzeka ukuba imaski ye-solder iyawa ngenxa ye-oven, ixesha lokubhaka lebhodi yesekethe lifutshane okanye ukushisa kokubhaka akwanele. Ngenxa yokuba ibhodi yesekethe kufuneka ibhakwe kubushushu obuphezulu emva kokushicilela imaski ye-solder ye-thermosetting okanye imaski ye-solder ye-photosensitive, kwaye ukuba ubushushu bokubhaka okanye ixesha alanelanga, amandla ebhodi ye-inki engaphezulu aya kuba akwanelanga, ngoko ke ibhodi yesekethe eprintiweyo ukusetyenzwa okulandelayo kunikezelwe kumthengi, umthengi ufumana ibhodi aze enze i-patch processing. Ukushisa okuphezulu kwesithando somlilo ngexesha lokulungiswa kwe-patch kuya kubangela ukuba imaski ye-solder yebhodi yesekethe iwele.

Ukucombulula le ngxaki, kufuneka siqale siqinisekise ukuba ubushushu bokubonisa ukubhaka kwi-oven buhambelana nobushushu bokubhaka bokwenyani, ukuze siphephe iimeko zokubhaka ezifunwa yi-inki ngenxa yobushushu be-oveni. I-inki yemaski nganye ye-solder ineemfuno ezahlukeneyo zexesha lokubhaka kunye nobushushu, ngoko zama ukubhaka ngokuhambelana nemiqathango yeparameter enikwe ngumenzi weinki.

3. Iingxaki zomgangatho we-inki okanye i-inki iphelelwe lixesha, iimveliso ze-inki eziveliswe ngumenzi we-inki ngamnye we-PCB ziya kwahluka kumgangatho. Ngamanye amaxesha, ukuze kulawuleke iindleko, abavelisi ibhodi yesekethe kufuneka basebenzise ibhodi yesekethe ezitshiphu solder ukuxhathisa inki ngenxa yokuba Kubavelisi ibhodi yesekethe, nangona solder imaski inki akhawunti inxalenye encinane kakhulu iindleko imveliso, ukuba isixa sikhulu, kuya kubakho. maninzi umahluko, ngamanye amaxesha ngenxa yoqwalaselo lweendleko, ii-inki zemaski ezishibhile zikhethiwe. I-solder ephantsi ukumelana ne-inki ngamanye amaxesha ihlupheka ngenxa yeengxaki ezifana nokunamathela. Kukho neefektri zebhodi yesekethe encinci, i-inki ethengiweyo ayizange isetyenziswe ixesha elide, kwaye ukusebenza kokusetyenziswa okuninzi kuncitshiswe kakhulu, kwaye ukuhla kwe-inki kunokwenzeka ukuba kwenzeke. Ngokubanzi, kuyacetyiswa ukuba usebenzise i-inki yemaski ye-solder kwiiyure ezingama-24 emva kokuvula itanki kunye nokulungelelanisa ioyile. Ukuba idlula iiyure ezingama-24, ukusebenza kwe-inki kuya kuncitshiswa kakhulu.

Ukuba iimfuno zomthengi wefektri yebhodi yesekethe ziphezulu kakhulu, zama ukukhetha i-inki yemaski ye-solder elungileyo. Emva koko, ixabiso le-inki libalelwa ngaphantsi kwe-3% yeendleko zizonke. Ukuba ulahlekelwa ngumthengi ozinzile ngenxa yengxaki ye-inki, iya kuba ngaphezu kwenzuzo. Imaski yeSolder yaseJapan yaseJapan kunye neTaiwan Chuanyu’s solder imaski zilungile kakhulu. kunjalo, njengoko ulutsha pseudo-ukuthanda izwe, kungcono ukuthenga Japanese solar ukumelana inki ngaphezu Taiwan Chuan Yu solder ukumelana inki. Baphantse bafana. Ngaba bekungayi kuba ngcono ukukhetha nje.

Sombulula ezi ngxaki zintathu. Ngokubanzi, ii-inks ze-solder mask kunqabile ukuba zibe ne-inki yokufaka. Ukuba kunjalo, zama ukuqhagamshelana nomthengisi we-inki uze ulungiselele ukuba igcisa liyilandele kwaye liyisombulule.