The isendlalelo semaski solder kwi-PCB ibhekisela engxenyeni yebhodi embozwe ngoyinki oluhlaza we-solder. Izindawo ezinezimbobo zemaski ze-solder zishiywe ngaphandle kweyinki, ziveza ithusi ukuze liphathwe phezulu kanye nezingxenye zokunamathisela. Izindawo ezingenazo izimbobo zimbozwe ngoyinki we-solder mask ukuvimbela i-oxidation nokuvuza.
Izizathu Ezintathu Zokuvulwa Kwemaski Ye-Solder:
1. Ukuvuleka Kwephedi Nge-Hole:
Amaphedi embobo adinga ukuvuleka kwemaski ye-solder. Ngaphandle kwalokhu kuvuleka, amaphuzu e-soldering azombozwa ngoyinki, okwenza kube nzima ukuhola ingxenye ye-solder.
2. SMD Pad Openings:
Ukuvuleka kwemaski ye-Solder kuyadingeka kuma-SMD pads ukuze kuvunyelwe ukuthengiswa. Uma indawo ye-soldering ingenazo izimbobo, amaphedi azombozwa ngoyinki, awenze angasebenzi kahle.
3. Ukuvula Indawo Enkulu Yethusi:
Ukwandisa umthamo wamanje ngaphandle kokunwetshwa kwemikhondo, izindawo ezithile zifakwe ngothayela. I-tin-plating idinga ukuvuleka kwemaski ye-solder kulezi zindawo.
Kungani Ukuvuleka Kwemaski Ye-Solder Kukhulu Kunamaphedi
Ukuvuleka kwemaski e-solder ngokuvamile kukhulu kunamaphedi ukuze kulandelwe ukubekezelelwa kokukhiqiza. Uma ukuvulwa kwemaski ye-solder ilingana nephedi, ukuhluka kokukhiqiza kungaholela ku-inki yemaski ye-solder emboza ingxenye yephedi. Ukuvimbela lokhu, ukuvuleka kwemaski ye-solder kuvame ukukhuliswa ngu 4-6 ms ngale kobukhulu bephedi, kucatshangelwa ukubekezelela okujwayelekile kokukhiqiza kwe-PCB.
Izimbangela Zokweqiwa Kwemaski Solder
1. Amaphutha efayela le-Gerber:
Phakathi nenqubo yokuhlela, umklami angase ashiye ngephutha ukuvuleka kwemaski ye-solder kufayela le-Gerber ngenxa yezilungiselelo ezingalungile noma amaphutha. Uma isendlalelo semaski ye-solder singalungiselelwe kahle ukufaka ukuvuleka kwephedi ngesikhathi sokuphuma kwe-Gerber, ifayela eliwumphumela lizontula ukuvuleka okudingekayo.
2. Idizayini Yephakheji Engalungile:
Amaphutha ekwakhiweni kwephakheji ye-PCB angaholela ekuvulekeni kwemaski ye-solder engekho. Isixazululo siwukumisa izakhiwo zephedi ngendlela efanele. Kumphathi wesitaki sephedi, engeza i-Soldermask Top (noma Bottom) bese ulungisa umumo we-Soldermask ukuze uzuze ukuvulwa okufunayo.
3. Ukungahambisani Kwenguqulo Yesofthiwe:
Umehluko phakathi kwezinguqulo zesofthiwe ye-EDA ungabangela ukukhishwa kwemaski ye-solder. Isibonelo, ukusebenzisa isoftware ye-AD yenguqulo ephezulu lapho amaphedi echazwa kusetshenziswa i- ithrekhi umsebenzi ungase uholele ezinkingeni lapho ifayela le-Gerber livulwa ngenguqulo ephansi. Ezinguqulweni ezindala, amathrekhi awakhiqizi ukuvuleka kwemaski ye-solder, kuyilapho isofthiwe ye-AD yenguqulo ephezulu yabela izimfanelo ezikhethekile kumathrekhi.
4. Akulungile Ngezimfanelo:
Kusoftware ye-AD, ukwengeza amaphedi kusetshenziswa I-VIA esikhundleni se PAD kungaholela ezinkingeni zamaski e-solder. I-Vias ivamise ukuba nesembozo semaski ezenzakalelayo ngaphandle uma ilungiselelwe ngenye indlela. Uma i-vias edinga ukuvuleka kwemaski ye-solder yengezwe ngokungalungile, ingambozwa ngesikhathi sokwenziwa.
5. Ukuguqulwa Kwefayela:
Phakathi nezibuyekezo eziphindaphindiwe, ukuhlelwa kabusha, noma ukukopishwa kwefayela lebhodi, ukuvuleka kwemaski ye-solder kungase kususwe ngephutha ngenxa yephutha lomsebenzisi, okuholela ekuvulekeni okulahlekile ekwakhiweni kokugcina nokuvimbela ukusoda ngendlela efanele.
Ngokubhekana nalezi zimbangela ezivamile kanye nokulandela izinqubo zokuklama ezifanele, ukushiywa kwemaski ye-solder kumiklamo ye-PCB kungancishiswa, kuqinisekiswe ukubethelwa okuthembekile nokusebenza.
