Ama-PCB emikhiqizweni emincane ayingxenye ebalulekile yemishini yesimanje kagesi. Ugqinsi lwethusi luyisici esibaluleke kakhulu enqubweni yokukhiqiza ye-PCB. Ukuqina kwethusi okulungile kungaqinisekisa ikhwalithi nokusebenza kwebhodi lesifunda, futhi kuthinta ukwethembeka nokuzinza kwemikhiqizo ye-elekthronikhi.
Ngokuvamile, ubukhulu bethu obujwayelekile bekhopha bungu-17.5um (0.5oz), 35um (1oz), 70um (2oz)
Ukuqina kwethusi kunquma ukuqhutshwa kagesi kwebhodi lesifunda. I-Copper iyinto enhle kakhulu ye-conductive, futhi ukushuba kwayo kuthinta ngqo umphumela wokuqhuba webhodi lesifunda. Uma ungqimba lwethusi luncane kakhulu, izakhiwo ze-conductive zingancipha, okuholela ekunciphiseni ukudluliswa kwesignali noma ukungazinzi kwamanje. Uma ungqimba lwethusi lukhulu kakhulu, nakuba i-conductivity izoba yinhle kakhulu, izokwandisa izindleko nesisindo sebhodi lesifunda. Uma ungqimba lwethusi lukhulu kakhulu, luzoholela kalula ekugelezeni kweglue okungathi sína, futhi uma ungqimba lwe-dielectric luncane kakhulu, ubunzima bokucubungula isifunda buzokhula. Ngakho-ke, ukujiya kwethusi okungu-2oz ngokuvamile akunconywa. Ekwenziweni kwe-PCB, ubukhulu bekhopha obufanele budinga ukukhethwa ngokusekelwe ezidingweni zokuklama kanye nokusetshenziswa kwangempela kwebhodi lesifunda ukuze kuzuzwe umphumela ongcono kakhulu wokuqhuba.
Okwesibili, ukushuba kwethusi nakho kunomthelela obalulekile ekusebenzeni kokukhipha ukushisa kwebhodi lesifunda. Njengoba izinto zesimanje zikagesi ziba namandla kakhulu, ukushisa okukhulayo kukhiqizwa phakathi nokusebenza kwazo. Ukusebenza okuhle kokukhipha ukushisa kungaqinisekisa ukuthi izinga lokushisa lezingxenye ze-elekthronikhi lilawulwa ngaphakathi kwebanga eliphephile phakathi nokusebenza. Isendlalelo sethusi sisebenza njengesendlalelo se-thermal conductive sebhodi lesifunda, futhi ubukhulu balo bunquma umphumela wokushisa ukushisa. Uma ungqimba lwethusi luncane kakhulu, ukushisa kungase kungenziwa futhi kuhlakazwe ngokuphumelelayo, okwandisa ingozi yezingxenye ezishisa ngokweqile.
Ngakho-ke, ubukhulu bekhopha be-PCB abukwazi ukuba mncane kakhulu. Phakathi nenqubo yokuklama i-PCB, singase futhi sibeke ithusi endaweni engenalutho ukuze sisize ukuchithwa kokushisa kwebhodi le-PCB. Ekwenziweni kwe-PCB, ukukhetha ukujiya kwethusi okufanele kungaqinisekisa ukuthi ibhodi lesifunda linokukhipha ukushisa okuhle. ukusebenza ukuqinisekisa ukusebenza okuphephile kwezingxenye ze-elekthronikhi.
Ngaphezu kwalokho, ukushuba kwethusi nakho kunomthelela obalulekile ekuthembekeni nasekuzinzeni kwebhodi lesifunda. Isendlalelo sethusi asisebenzi nje njengesendlalelo se-electrical and thermally conductive, kodwa futhi sisebenza njengesisekelo sokusekela nokuxhuma kwebhodi lesifunda. Ukujiya okufanelekile kwethusi kunganikeza amandla anele emishini ukuvimbela ibhodi lesifunda ukuthi lingagobi, liphuke noma livuleke ngesikhathi sokusetshenziswa. Ngesikhathi esifanayo, ukujiya okufanelekile kwethusi kungaqinisekisa ikhwalithi yokushisela yebhodi lesifunda nezinye izingxenye futhi kunciphise ingozi yokukhubazeka nokuhluleka. Ngakho-ke, ekukhiqizeni i-PCB, ukukhetha ubukhulu bethusi obufanele kungathuthukisa ukuthembeka nokuzinza kwebhodi lesifunda futhi kunwebe impilo yesevisi yemikhiqizo ye-elekthronikhi.
Ukufingqa, ukubaluleka kogqinsi lwethusi ekukhiqizeni i-PCB akunakuzitshwa. Ukuqina kwethusi okulungile kungaqinisekisa ukuqhutshwa kukagesi, ukusebenza kokushisa kokushisa, ukwethembeka nokuzinza kwebhodi lesifunda.
Enqubweni yokukhiqiza yangempela, kuyadingeka ukukhetha ubukhulu bekhopha obufanele ngokusekelwe ezintweni ezifana nezidingo zebhodi lesifunda, izidingo zokusebenza, nokulawulwa kwezindleko ukuze kuqinisekiswe ikhwalithi nokusebenza kwemikhiqizo ye-elekthronikhi. Kungale ndlela kuphela lapho ama-PCB ekhwalithi ephezulu angakhiqizwa ukuze ahlangabezane nokusebenza okuphezulu nezidingo zokuthembeka okuphezulu kwemishini yesimanje ye-elekthronikhi.
