Ama-PCB kwimikhiqizo engezansi ayingxenye ebalulekile yemishini yanamuhla kagesi. Ubukhulu bethusi buyinto ebaluleke kakhulu kwinqubo yokukhiqiza ye-PCB. Ubukhulu bethusi obufanele bungaqinisekisa ikhwalithi nokusebenza kwebhodi yesekethe, futhi kuthinta nokuthembela nokuqina kwemikhiqizo ye-elekthronikhi.
Ngokuvamile, ubukhulu bethu bethusi abajwayelekile bangama-17.5um (0.5oz), 35Um (1oz), 70OZ (2OZ)
Ubukhulu bethusi bunquma ukuqina kukagesi kwebhodi yesekethe. I-Copper iyinto enhle yokusebenza ngendlela enhle kakhulu, futhi ubukhulu bawo buthinta ngqo umphumela wokuphambuka webhodi yokujikeleza. Uma ungqimba lwethusi lincane kakhulu, izakhiwo ezenziwayo zingancipha, kuholele ekunikezelweni kwesiginali zokudlulisela noma ukungazinzi kwamanje. Uma ungqimba lwethusi lukhulu kakhulu, yize ukuvumelanisa kuzoba kuhle kakhulu, kuzonyusa izindleko nesisindo sebhodi yesekethe. Uma ungqimba lwethusi lukhulu kakhulu, luzoholela kalula ekuhambeni okuthe xaxa kwe-glue flow, futhi uma ungqimba lwe-dielectric mncane kakhulu, ubunzima bokucutshungulwa kwesekethe buzokwanda. Ngakho-ke, ubukhulu bethusi be-2oz akunconywa. Ezokukhiqiza i-PCB, ubukhulu bethusi obufanele budinga ukukhethwa ngokuya ngezidingo zokuklama kanye nokusetshenziswa kwangempela kweBhodi Yesekethe ukufeza umphumela omuhle kakhulu.
Okwesibili, ubukhulu bethusi bubuye bube nomthelela obalulekile ekusebenzeni kokuhlaselwa kokushisa kwebhodi yesekethe. Njengoba amadivaysi anamuhla kagesi eba namandla ngokwengeziwe, ukushisa okuningi nokuningi kukhiqizwa ngesikhathi kusebenza kwabo. Ukusebenza okuhle kokushisa kokushisa kungaqinisekisa ukuthi izinga lokushisa lezinto ze-elekthronikhi lilawulwa ngaphakathi kwebanga eliphephile ngesikhathi sokusebenza. Ungqimba lwethusi lusebenza njengongqimba olusezingeni eliphezulu lwebhodi yesifunda, futhi ubukhulu bawo bunquma umphumela wokushisa ukushisa. Uma ungqimba lwethusi mncane kakhulu, kungahle kungaqhutshwa futhi kuhlakaze ngempumelelo, kwandise ubungozi bezakhi ezigcwele ngokweqile.
Ngakho-ke, ukushuba kwethusi kwe-PCB akunakuba mncane kakhulu. Ngesikhathi senqubo ye-PCB Design, singalala futhi ithusi endaweni engenalutho ukusiza ukuncipha kokushisa kwebhodi le-PCB. Ezokukhiqiza i-PCB, ukukhetha ubukhulu bethusi elifanele kungaqinisekisa ukuthi iBhodi yesekethe linokuhlanzeka okuhle kokushisa. ukusebenza ukuze uqinisekise ukusebenza okuphephile kwezinto ze-elekthronikhi.
Ngaphezu kwalokho, ukushuba kwethusi kubuye kube nomthelela obalulekile ekuthembekeni nasekuzinzweni kweBhodi Yesekethe. Ingqimba yethusi ayisebenzi nje kuphela njengesendlalelo sogesi nakwenzile, kepha futhi isebenza njengesendlalelo sokusekelwa nesendlalelo sokuxhumeka kwiBhodi Yesekethe. Ubukhulu bethusi elifanele bunganikeza amandla anele okwenziwa ngomshini ukuvimbela ibhodi yesekethe ekugobeni, ukuphula noma ukuvula ngesikhathi sokusebenzisa. Ngasikhathi sinye, ukushuba okufanele kwethusi kungaqinisekisa ikhwalithi ye-welding yebhodi yokujikeleza nezinye izingxenye futhi inciphise ubungozi bokulimala kwe-welding nokwehluleka. Ngakho-ke, ekukhiqizeni i-PCB, ukukhetha ubukhulu bethusi elifanele kungathuthukisa ukuthembeka nokuqina kwebhodi yesekethe futhi kwandise impilo yensiza yemikhiqizo ye-elekthronikhi.
Ukufingqa, ukubaluleka kokukhuluphala kwethusi ekukhiqizeni i-PCB akunakwa. Ubukhulu bethusi obulungile bungaqinisekisa ukuqina kukagesi, ukusebenza kokuhlanza ukushisa, ukuthembeka nokuqina kwebhodi yesekethe.
Enqubweni yokwenziwa kwangempela, kuyadingeka ukuthi ukhethe ubukhulu bethusi obufanele ngokususelwa ezintweni ezifana nezidingo zokuklama ibhodi yesekethe, izidingo ezisebenzayo, kanye nokulawulwa kwezindleko ukuqinisekisa ikhwalithi nokusebenza kwemikhiqizo ye-elekthronikhi. Ngale ndlela kuphela ongakhiqizwa ama-PCs asezingeni eliphakeme ukuze ahlangabezane nokusebenza okuphezulu kanye nezidingo eziphezulu zokwethenjwa kwezinto zanamuhla ze-elekthronikhi.
