Zeziphi iintlobo zezicelo ezisetyenziswa ii-PCB ze-Heavy Copper eziqhelekileyo?
IiPCB zobhedu ezinzima zilungele izixhobo eziphezulu zamandla, iimoto, ukhuselo kunye nezicelo zomkhosi, izixhobo zonyango, kunye nezinye iindawo ezininzi.
Yintoni iPCB yobhedu enzima?
PCB yobhedu enzima ibhekisa kwi-PCB apho i-3oz okanye ubhedu olukhulu lusetyenziswa kuzo zonke iileya zebhodi zombini iileya zangaphakathi nangaphandle.
Ngaba kukho naziphi na izithintelo ekusebenziseni ubhedu olunzima kwii-PCB zomaleko amaninzi?
Ngelixa ubhedu obunzima bunokusetyenziswa kwii-PCB zomaleko amaninzi, kukho imida. Ubuninzi bobhedu obonyukileyo bunokwenza kube nzima ukuphumeza ukubhaliswa kakuhle phakathi kweeleyile. Ukongeza, ubukhulu bebhodi bubonke bunyuka kakhulu ngobhedu olunzima kumaleko amaninzi, olunokuthi lube nefuthe kwiinkqubo zokwenziwa kwemveliso njengokugrumba kunye nokufaka imingxunya.
Ngaba iiPCB zobhedu ezinzima zingasetyenziswa ngobuchwephesha bokunyuswa komhlaba (SMT)?
Ewe, iiPCB zobhedu ezinzima zinokuyilwa kumacandelo e-SMT. Nangona kunjalo, ingqwalasela ekhethekileyo iyafuneka kwisicelo sokunamathisela i-solder, ukubekwa kwecandelo, kunye neeprofayili zokujikeleza kwakhona ngenxa yokwanda kwe-thermal mass of layers zobhedu obunzima. Amacandelo e-SMT ane-fine-pitch anokufuna ubukhulu bobhedu obuqhelekileyo kwiindawo zabo zokukhwela.
Yintoni ethathwa ngokuba "lubhedu olunzima" ekwenzeni iPCB?
Ngokubanzi, nabuphi na ubunzima bobhedu obungaphezulu kwe-3 oz (105 µm) buthathwa ngokuba lubhedu olunzima. Nangona kunjalo, inkcazo inokwahluka ngokuxhomekeke kwisicelo kunye neshishini. Abanye abavelisi banokuthatha i-3 oz njengendawo yokuqala yobhedu olunzima, ngelixa abanye banokubeka umda kwi-4 oz okanye ngaphezulu.
Iindleko zeePCB zobhedu ezinzima zithelekiswa njani neePCB eziqhelekileyo?
IiPCB zobhedu olunzima zidla ngokubiza kakhulu kunee-PCB eziqhelekileyo ngenxa yezinto ezininzi: Ukunyuka kweendleko zemathiriyeli ekrwada (ikopolo eninzi) Amaxesha amade okucutshungulwa, ngakumbi ukunxitywa kwezixhobo eziphezulu ngexesha lokwenziwa kwenkqubo yokwenziwa kwemveliso entsonkothileyo kakhulu Izivuno ezinokubakho ngenxa yokunyamezelwa kokwenziwa kwemveliso. iindleko ezongezelelekileyo zinokulungiswa ngokuphucuka kokusebenza, ukuthembeka, kunye nokubanakho ukunciphisa inani leeleya kolunye uyilo.
Ukhetha njani ubukhulu bePCB yobhedu?
Ngokutsho kosetyenziso olwahlukileyo lwePCB, ubukhulu bobhedu obufunekayo buhlukile. Njenge-PCBs kubathengi ngokubanzi kunye neemveliso zonxibelelwano, ubukhulu bobhedu be-0.5oz, 1oz, kunye ne-2oz ziyafuneka; kwiimveliso ze-elektroniki ezithwele langoku eliphezulu, ezifana neemveliso zombane ophezulu, iibhodi zobonelelo ngombane, kunye nezinye iimveliso, iiPCBs zifuna ngaphezulu kwe-3oz yobhedu olungqingqwa. Ngamafutshane, khetha ubukhulu bobhedu obufanelekileyo ngokweemfuno zemveliso.
Zingaphi iileya zobhedu ezikwiPCB?
Kukho umaleko omnye wobhedu kwiPCB enecala elinye. Kukho iileya ezimbini zobhedu kwi-PCB enamacala amabini. Kukho ngaphezu kwemigangatho emibini yobhedu kwi-PCB enamaleko amaninzi. Ngokomzekelo, kukho iileya ezine zobhedu kwi-PCB ene-4-layer.
Ngaba kukho nawuphi na umahluko phakathi kwebhodi yesekethe yobhedu enzima kunye neePCB zobhedu ezishinyeneyo?
Akukho mahluko phakathi kwala magama mabini, zonke zithetha iibhodi zesekethe eziprintiweyo ezine-3oz okanye ubukhulu bobhedu obungqingqwa. I-PCB yobhedu eshinyeneyo okanye iibhodi zobhedu ezinzima zisetyenziswa ngokubanzi kwiibhodi ze-elektroniki zamandla aphezulu.
Yintoni ubunzima bobhedu obuqhelekileyo beePCB ze-Heavy Copper?
Ubunzima bobhedu obuqhelekileyo kwiiPCB zobhedu ezinzima bungaphezulu kwee-ounces ezi-2 (70um). Kodwa sinokuvelisa ubukhulu obukhulu bekopolo obufana ne-4 oz ye-PCB yobhedu, i-10 oz ye-PCB yobhedu kunye ne-PCB yobhedu eyi-20 oz.
Zeziphi izinto ezisetyenziswayo kwiiPCB zobhedu olunzima?
Ubhedu lwe-RTF kufuneka lusetyenziswe.
Izinto ezingcono zokuzalisa kwi-lamination
Ii-substrates eziphezulu ze-thermal conductivity
Ngaba kukho naziphi na iingqalelo zoyilo xa usebenza nee-PCB ze-Heavy Copper?
Ukutshaja indawo enkulu yobhedu kwiindawo zobhedu
Gcina ubhedu olufanelekileyo olushiyekileyo
Yandisa ububanzi bomkhondo kunye nezithuba
Lungiselela uyilo lwephedi lomaleko wangaphakathi
Zeziphi iingenelo zokusebenzisa ii-PCB ze-Heavy Copper?
Ukumelana nemisinga emininzi kunye nombane ophezulu
Ukuthembeka okuphezulu
Iyakwazi ukumelana nobushushu, ingqele, kunye nomhlwa
Isangqa sobomi obude
Ngaba ibhodi yesekethe ye-2oz yobhedu enzima yobhedu eprintiweyo?
Kwi-Richfulljoy, iibhodi zesekethe eziprintiweyo kunye ne-0.33oz, 0.5oz, 1oz kunye ne-2oz zizinto eziqhelekileyo zobhedu. Ke sicinga ukuba i-2oz PCB ayiyobhodi yesekethe yobhedu enzima, kwaye sijonga iiPCB ezine-3oz okanye ngaphezulu kobunzima bobhedu njengeebhodi zobhedu ezinzima.