Umgangatho we eprintiweyo ibhodi yesekethe, ukwenzeka nokusonjululwa kweengxaki, kunye novavanyo lokuphuculwa kwenkqubo kufuneka zisikwe njengesiseko sokuhlola injongo, uphando kunye nokugweba. Umgangatho wesilayidi unefuthe elikhulu ekumiselweni kweziphumo.

Uhlalutyo lweCandelo lusetyenziselwa ukujonga ubukhulu kunye nenani leebhodi ze-PCB zangaphakathi, ngokusebenzisa ubukhulu bomngxuma, ngokujonga umgangatho womngxuma, osetyenziselwa ukukhangela umngxunya wangaphakathi we-PCBA ngokudibeneyo, imeko yomdibaniso womdibaniso, uvavanyo lomgangatho wokumanzi njalo njalo. Uhlalutyo lwesilayidi bubuchule obubalulekileyo bokungaphumeleli kohlalutyo lwePCB / PCBA, kwaye umgangatho wesilayidi uya kuchaphazela ngokuthe ngqo ukungqinisisa indawo yokungaphumeleli.

Ukuhlelwa kwecandelo le-PCB: icandelo ngokubanzi linokwahlulahlulwa libe licandelo elithe nkqo kunye necandelo elithe tyaba

1. Nkqo nkqo ukusikwa kuthetha ukusika ecaleni kwicala elithe ngqo kumphandle ukuze ujonge imeko yeprofayile, ihlala isetyenziselwa ukugcina umgangatho, ulwakhiwo lwe-lamination kunye nomphezulu wokudibanisa wangaphakathi emngxunyeni emva kwesingxobo sobhedu. Icandelo lokuma yeyona ndlela isetyenziswa kakhulu kuhlalutyo lwamacandelo.

2. Isilayidi esithe tyaba sigxunyekwe ngaphantsi komaleko omnye ngokobubanzi ecaleni kwendlela ebhodini yokujonga imeko yomaleko ngamnye. Ihlala isetyenziselwa ukunceda uhlalutyo kunye nokugwetywa kokungaqhelekanga komgangatho wesilayidi esime nkqo, esifana nokufutshane ngaphakathi okanye ukungahambi ngaphakathi okuvulekileyo.

Ukucoca ngokubanzi kubandakanya isampulu, uMosaic, ukusika, ukupholisha, ukubola, ukuqaphela kunye nothotho lweendlela kunye namanyathelo okufumana icandelo le-PCB egudileyo. Emva koko kusetyenziswa imicroscope yesinyigiloglo kunye nokuskena imicroscope ye-elektroniki, iinkcukacha zemicroscopic yamacandelo ziyahlaziywa. Kuphela kuxa la macandelo etolikwe ngokuchanekileyo kunganakho ukuba kwenziwe uhlalutyo olululo kwaye kunikwe izisombululo ezisebenzayo. Ke ngoko, umgangatho wesilayidi ubaluleke ngokukodwa, isilayidi somgangatho ophantsi siya kuzisa ukungahambi kakuhle kunye nokugweba kakubi kuhlalutyo lokusilela. I-Metallographic microscope njengesixhobo esibaluleke kakhulu sokuhlalutya, ukukhulisa kwayo ukusuka kuma-50 ukuya kuma-1000 amaxesha, ukuphambuka kokuchaneka komlinganiselo ngaphakathi kwe-1μm.

Emva kokwenziwa kwecandelo, uhlalutyo lwecandelo nokutolika kuyalandela. Ukufumana unobangela wokuvela kokubi, kunye nokwenza amanyathelo ahambelana nophuculo, ukulungiselela ukuphucula isivuno kunye nokunciphisa ilahleko.