Mubikorwa bya PCB, inzira yo kuvura hejuru ni intambwe ikomeye. Ntabwo bigira ingaruka gusa kumiterere ya PCB, ahubwo bifitanye isano itaziguye nimikorere, kwizerwa no kuramba kwa PCB. Uburyo bwo kuvura hejuru burashobora gutanga urwego rukingira kugirango rwirinde kwangirika kwumuringa, kongera imikorere yo kugurisha, no gutanga ibikoresho byiza byamashanyarazi. Ibikurikira nisesengura ryibikorwa byinshi byo kuvura hejuru mubikorwa bya PCB.
. .HASL (Umuyaga ushushe)
Umuyaga ushyushye wo mu kirere (HASL) ni tekinoroji gakondo yo kuvura PCB ikora mukwinjiza PCB mumabati yashongeshejwe / ikayobora hanyuma ugakoresha umwuka ushushe kugirango "utegure" hejuru kugirango habeho icyuma kimwe. Inzira ya HASL irahendutse kandi irakwiriye muburyo butandukanye bwo gukora PCB, ariko irashobora kugira ibibazo kumapadiri ataringaniye hamwe nuburinganire bwibyuma bidahuye.
EN .ENIG (zahabu ya nikel)
Electroless nikel zahabu (ENIG) ninzira ibika nikel na zahabu hejuru ya PCB. Ubwa mbere, ubuso bwumuringa burasukurwa kandi bugakorwa, hanyuma hashyizweho urwego ruto rwa nikel binyuze muburyo bwo gusimbuza imiti, hanyuma amaherezo igashyirwa hejuru ya zahabu hejuru ya nikel. Inzira ya ENIG itanga uburyo bwiza bwo guhangana no kwambara kandi birakwiriye kubisabwa hamwe nibisabwa byizewe, ariko ikiguzi ni kinini.
三 zahabu
Imiti ya Zahabu ishyira zahabu yoroheje hejuru ya PCB. Ubu buryo bukoreshwa kenshi mubisabwa bidasaba kugurisha, nka radiyo yumurongo wa radiyo (RF) hamwe na microwave, kubera ko zahabu itanga uburyo bwiza bwo kurwanya ruswa. Zahabu yimiti igura munsi ya ENIG, ariko ntabwo irwanya kwambara nka ENIG.
四 、 OSP (firime ikingira)
Filime ikingira umubiri (OSP) ni inzira ikora firime yoroheje ku muringa kugirango irinde umuringa okiside. OSP ifite inzira yoroshye nigiciro gito, ariko uburinzi itanga ni ntege nke kandi burakwiriye kubika igihe gito no gukoresha PCBs.
Zahabu
Zahabu ikomeye ninzira ishyira zahabu ndende hejuru ya PCB ikoresheje amashanyarazi. Zahabu ikomeye irwanya kwambara kurusha zahabu yimiti kandi irakwiriye kubihuza bisaba gucomeka kenshi no gucomeka cyangwa PCBs zikoreshwa mubidukikije. Zahabu ikomeye igura ibirenze zahabu ariko itanga uburinzi bwigihe kirekire.
六 Ifeza yo kwibiza
Immersion Ifeza ninzira yo kubitsa ifeza hejuru ya PCB. Ifeza ifite uburyo bwiza bwo kwerekana no kwerekana ibintu, bigatuma ikwirakwira kandi igaragara. Igiciro cyibikorwa bya feza yo kwibiza biringaniye, ariko igiceri cya feza kirigita byoroshye kandi bisaba ingamba zokurinda.
七 in Amabati
Immersion Tin ni inzira yo kubitsa amabati hejuru ya PCB. Amabati atanga ibikoresho byiza byo kugurisha hamwe no kurwanya ruswa. Amabati yo kwibiza ahendutse, ariko amabati arashobora guhumeka byoroshye kandi mubisanzwe bisaba ubundi buryo bwo kurinda.
八 、 Kurongora-Ubuntu HASL
Isonga-Yubusa HASL ni inzira ya HHSL ya RoHS ikoresha amabati adafite isuku / ifeza / umuringa wumuringa kugirango usimbuze amabati gakondo / isasu. Inzira idafite HASL inzira itanga imikorere isa na HASL gakondo ariko yujuje ibisabwa mubidukikije.
Hariho uburyo butandukanye bwo kuvura hejuru mubikorwa bya PCB, kandi buri nzira ifite ibyiza byayo hamwe nibisabwa. Guhitamo uburyo bukwiye bwo gutunganya ibintu bisaba gusuzuma ibidukikije, ibisabwa, imikorere yingengo yimari n’ibidukikije byo kurengera ibidukikije bya PCB. Hamwe niterambere ryikoranabuhanga rya elegitoronike, uburyo bushya bwo kuvura hejuru burakomeza kugaragara, butanga abakora PCB amahitamo menshi kugirango bahuze isoko rihinduka.