- 15
- Oct
PCB etching design
Isendlalelo sethusi se- ibhodi yesifunda ephrintiwe ukugxila kunoma yikuphi ukwakheka kwesekethe, ezinye izingqimba zisekela noma zivikele isekethe kuphela, noma zenze inqubo yenhlangano ibe lula. Kumklami we-PCB osafufusa, ukugxila okuyinhloko ukuthola ukuxhuma kusuka ephuzwini A kuya kukhomba B ngezinkinga ezimbalwa ngangokunokwenzeka.
Isendlalelo sethusi sebhodi lesifunda eliphrintiwe sigxila kunoma yikuphi ukwakheka kwesekethe, ezinye izingqimba zisekela noma zivikela isekethe kuphela, noma zenze inqubo yenhlangano ibe lula. Kumklami we-PCB osafufusa, ukugxila okuyinhloko ukuthola ukuxhuma kusuka ephuzwini A kuya kukhomba B ngezinkinga ezimbalwa ngangokunokwenzeka.
Kodwa-ke, ngesikhathi nangolwazi, abaklami be-PCB bagxila kakhulu ku:
ukwenaba
ubuciko
Ukusetshenziswa kwesikhala
Ukusebenza jikelele
Ibhodi yezindleko eziphansi
Ukutholakala kuza ngentengo yejubane nekhwalithi
I-PCB eyenziwe ekhaya
Kuvame kakhulu ngenxa yesikhathi sokujika
PCB Ochwepheshe
Sebenzisa izindlela ezithuthuke kakhulu ukwenza ngcono ukusebenza kwayo nokubekezelelana
L Sebenzisa amasu okugcoba nemishini engcono nobuchwepheshe
Ngenxa yethonya elikhulu lobungcweti, umehluko phakathi kwamakomidi amateur kanye nochwepheshe wanda kakhulu njengoba ukubekezelelana kwanda
Umehluko phakathi kwezindlu ezingambi eqolo nezisezingeni elicokeme usucacile futhi
Izinyathelo zokufaka i-PCB:
1. Ngokulinganayo faka i-photoresist epuletini egqoke ithusi
I-photoresist iyazwela ekukhanyeni kwe-ultraviolet futhi iqina ngemuva kokuvezwa. I-photoresist bese imbozwa ngesithombe esingesihle sesendlalelo sethusi epuletini.
2. Kusetshenziswa ukukhanya okuqinile kwe-ultraviolet ukudalula ikhava engezansi yebhodi lesifunda
Ukukhanya okunamandla kwe-ultraviolet kuzokwenza lukhuni izindawo okufanele zihlale zingamapuleti ethusi. Ubuchwepheshe buyafana nalobo obusetshenziselwa ukwenza ama-semiconductors ngamashumi ama-nanometer ngosayizi, ngakho-ke ikwazi ngokuphelele ukuba nezici ezinhle kakhulu.
3.Cwilisa ibhodi lesifunda lonke kusisombululo sokususa isithombe esikhuni
4. Sebenzisa i-etcher yethusi ukukhipha ithusi engadingeki
Inselelo ethokozisayo esinyangeni sokudonsa yisidingo sokwenza i-anisotropic etching. Lapho ithusi likhonjwe phansi, unqenqema lwethusi oluvikelwe luyavezwa futhi lushiywe lungavikelekile. Ukulandela umkhondo ngokucace kakhudlwana, kuncane inani lesendlalelo esiphezulu esivikelekile kusendlalelo lohlangothi oludaluliwe.
5.Bhola izimbobo ku-PCB
Ukusuka ekugoqeni izimbobo kuya emigodini ekhuphukayo, le mibobo ingasetshenziselwa konke ukusetshenziswa okuhlukile ku-PCB. Lapho nje le mibobo seyenziwe, ithusi lifakwa ngaphakathi kwezindonga zemigodi kusetshenziswa ukubekwa kwethusi okungenamandla okwenza uxhumano lukagesi ebhodini.
Imodi yokukhiqiza nemodi yokuklama ye-PCB ayikwazi ukushaywa indiva noma ayikwazi ukunakwa. Yize umklami engadingi iminyaka yokwenziwa kwe-PCB nesipiliyoni somhlangano, ukuqonda okuqinile kokuthi ungazenza kanjani lezi zinto kuzokunikeza ukuqonda okungcono kokuthi ukwakhiwa okuhle kwe-PCB kusebenza kanjani nokuthi kungani kusebenza.