Amabhodi omthofu ayadingeka emikhiqizweni eminingi, ikakhulukazi i-PCB ibhodi multilayer ngezinhlobonhlobo eziningi kanye nenani elincane. Uma kusetshenziswa inqubo yokulinganisa umoya oshisayo, izindleko zokukhiqiza zizokwenyuka, umjikelezo wokucubungula uzoba mude, futhi ukwakhiwa kuzoba nzima kakhulu. Ngenxa yalesi sizathu, amapuleti e-lead-tin avame ukusetshenziswa ekukhiqizeni, kodwa kunezinkinga eziningi zekhwalithi ngesikhathi sokucubungula. Inkinga enkulu yekhwalithi i-PCB delamination kanye namabhamuza. Yiziphi izizathu? Imbangela yokuthi:

Izimbangela zezinkinga zekhwalithi ye-PCB

1. Ukucindezela okungafanele kubangela ukuba kungene umoya, umswakama kanye nokungcola;

2. Phakathi nenqubo yokucindezela, ngenxa yokushisa okunganele, umjikelezo omfushane kakhulu, izinga eliphansi le-prepreg, kanye nokusebenza okungalungile komshini wokunyathelisa, okuholela ezinkingeni ngezinga lokuphulukisa;

3. Ukuphathwa okumnyama okumnyama komugqa wangaphakathi noma indawo engaphezulu ingcolile ngesikhathi sobumnyama;

4. I-ply yangaphakathi noma prepreg ingcolile;

5. Ukugeleza kweglue okunganele;

6. Ukugeleza kweglue ngokweqile-cishe yonke ingcina equkethwe ku-prepreg ikhishwa ebhodini;

7. Endabeni yezidingo ezingasebenzi, ibhodi lesendlalelo sangaphakathi kufanele linciphise ukubonakala kwezindawo ezinkulu zethusi (ngoba amandla okubopha i-resin endaweni yethusi aphansi kakhulu kunamandla okubopha we-resin kanye ne-resin);

8. Uma kusetshenziswa ukucindezela kwe-vacuum, ukucindezela akwanele, okuzolimaza ukugeleza kweglue nokunamathela (ukucindezeleka okusele kwebhodi le-multilayer elicindezelwe ukucindezela okuphansi nakho kuncane).

Kumafilimu amancane, ngenxa yokuthi inani eliphelele leglue lincane, inkinga ye-resin yesifunda enganele cishe kungenzeka, ngakho-ke ukusetshenziswa kwamafilimu amancane kufanele kuphathwe ngokucophelela. Njengamanje, inani lamapuleti amancane liya ngokuya likhuphuka. Ukuze kugcinwe ukuzinza kogqinsi, ukwakheka kwezimboni zezinto eziyisisekelo kulungiswa kusiqondiso sokugeleza okuphansi. Ukuze kuthuthukiswe izakhiwo ezibonakalayo zezinto zokwakha, ama-fillers ahlukene ayengezwa ekwakhiweni kwe-resin. Ngesikhathi sokusebenza kwe-substrate, gwema ukuwa kwe-colloid ngesikhathi sokusebenza, okungase kubangele inkinga yamabhamuza omoya epuleti eliphansi elibangelwa i-resin encane noma ungqimba lukakhilimu.