Iibhodi zesekethe eziprintiweyo (PCBs) ziyinxalenye yesixhobo ngasinye sombane esisisebenzisayo namhlanje. Babonelela ngesiseko samacandelo e-elektroniki, ukuqinisekisa ukusebenza okuchanekileyo kunye nokudibanisa kombane. Nangona kunjalo, xa uyila i-PCB, ukukhetha izixhobo ezifanelekileyo kunokuchaphazela kakhulu ukusebenza, ukuqina, kunye neendleko-zokusebenza kwemveliso yokugqibela. Kule blog, siza kujonga izinto ezahlukeneyo ekufuneka ziqwalaselwe xa ukhetha izinto PCB.
Funda malunga nezixhobo zePCB:
Kukho iintlobo ezininzi zezinto PCB, ngalinye kunye neepropati ezahlukeneyo kunye neenzuzo. Ezinye izinto eziqhelekileyo ezisetyenziswa kwi-PCB yokuvelisa ziquka i-FR-4, i-Polyimide, i-Rogers, kunye ne-Aluminiyam. Ngokuqonda iimpawu zezi zixhobo, unokwenza izigqibo ezinolwazi ngokusekelwe kwiimfuno zakho zoyilo.
Izinto ekufuneka ziqwalaselwe:
1. IiPropati zoMbane: Iimpawu zombane zemathiriyeli yePCB zidlala indima ebalulekileyo ekumiseleni ukufaneleka kwayo kwisicelo esithile. Cinga nge-dielectric engaguqukiyo, ilahleko, kunye ne-tangent yelahleko. Ezi zinto zichaphazela ingqibelelo yomqondiso, ulawulo lwe-impedance, kunye namandla okuphatha amandla.
2. I-Thermal conductivity kunye nolawulo: Ukukwazi kwezixhobo ze-PCB ukutshabalalisa ubushushu kubaluleke kakhulu, ngakumbi kwizicelo eziphezulu zamandla. Khangela izinto ezinomgangatho ophezulu we-thermal conductivity ukuqinisekisa ukutshatyalaliswa kobushushu obufanelekileyo kunye nokunciphisa umngcipheko wokushisa kunye nokungaphumeleli kwecandelo.
3. Amandla omatshini kunye nokuqina: Amandla omatshini wezinto zePCB amisela ukuchasana noxinzelelo, ukungcangcazela kunye nokugoba. Kufuneka ikwazi ukumelana neemeko zokusingqongileyo apho iPCB isetyenziswa khona. Qwalasela izinto ezinje ngokuqina kokuqina, amandla okuguquguquka kunye nokumelana nempembelelo.
4. Iindleko kunye nokufumaneka: Iindleko kunye nokufumaneka kunokwahluka ngokubanzi ngaphakathi kwendawo yezixhobo zePCB. Qwalasela uhlahlo lwabiwo-mali olwabelwe iprojekthi kwaye ululinganise ngokweempawu ezifunekayo. Ezinye izinto zinokubonelela ngokusebenza okuphezulu kodwa ngexabiso eliphezulu, ngelixa ezinye zinokungabizi kakhulu kodwa zinokufumaneka okuncinci.
5. Inkqubo yokuvelisa: Izinto ezahlukeneyo zePCB zifuna iinkqubo ezahlukeneyo zokuvelisa. Ezinye iimathiriyeli zifanelene ngcono kwindibano yemveli yomngxunya, ngelixa ezinye zifaneleke ngcono kubuchwephesha bokunyuswa komphezulu (SMT). Ukuqonda inkqubo yokuvelisa kunye nokuhambelana kwezinto ezikhethiweyo kubalulekile ukuphepha imiba yokuvelisa.
Uphononongo olungumzekelo: Ukukhetha iMathiriyeli yePCB eLungileyo kwiZicelo zokuQhuba okuPhezulu:
Makhe siqwalasele imeko: I-PCB iyafuneka kwiisekethe eziphezulu ze-frequency yezixhobo zonxibelelwano ezingenazingcingo. Kule meko, into efana neRogers PCB iya kuba yinto efanelekileyo. Izinto zeRogers zinelahleko ephantsi ye-dielectrics eqinisekisa ukulahleka kweempawu ezincinci kwiifrikhwensi eziphezulu. Bakwanayo ne-thermal conductivity egqwesileyo, ebenza bafaneleke kuyilo lwamandla aphezulu avelisa ubushushu obukhulu.
Inkqubo yokukhetha imathiriyeli yePCB linyathelo elibalulekileyo kuyilo lwesixhobo sombane. Ngokuqwalasela izinto ezifana nokusebenza kombane, i-thermal conductivity, amandla omatshini, iindleko, ukufumaneka, kunye nokuhambelana nokuvelisa, unokukhetha izinto ezihlangabezana neemfuno zakho zeprojekthi. Khumbula ukuhlalutya iimfuno ezithile zesicelo sakho ukwenza isigqibo esinolwazi. Izinto ezikhethwe ngononophelo zePCB ziya kuphucula ukusebenza kunye nokuthembeka koyilo lwakho lombane.
Ixesha lokuposa: Sep-25-2023