Best Technology yenye abavelisi pcb ilungileyo eprintiweyo ababoneleli ngebhodi yesekethe e China
Ulwimi
Best Technology yenye abavelisi pcb ilungileyo eprintiweyo ababoneleli ngebhodi yesekethe e China
Ukutshintsha kobushushu bokusebenza kunokuba nempembelelo enkulu ekusebenzeni, ukuthembeka, ubomi kunye nomgangatho weemveliso. Ukunyuka kobushushu kubangela ukwanda kwezixhobo, nangona kunjalo, izixhobo ze-substrate ezenziwe nge-PCB zinee-coefficients ezahlukeneyo zokwandiswa kwe-thermal, oku kubangela uxinzelelo lomatshini olunokudala i-micro-cracks enokuthi ingabonwa ngexesha lovavanyo lombane oluqhutywe ekupheleni kwemveliso.
Ngenxa yomgaqo-nkqubo we-RoHS okhutshwe kwi-2002 ifuna ii-alloys ezingenalo i-lead-free for soldering. Nangona kunjalo, ukususa ukukhokelela ngokuthe ngqo kubangela ukunyuka kweqondo lokushisa elinyibilikayo, iibhodi zeesekethe eziprintiweyo ke ngoko zixhomekeke kumaqondo okushisa aphezulu ngexesha le-soldering (kubandakanywa ukuphindaphinda kunye namaza). Ngokuxhomekeke kwinkqubo ekhethiweyo yokubuyisela kwakhona (eyodwa, kabini…), kuyimfuneko ukusebenzisa i-PCB eneempawu ezifanelekileyo zomatshini, ngakumbi oneTg efanelekileyo.
Yintoni iTg?
I-Tg (iqondo lobushushu beglasi) lixabiso lobushushu eliqinisekisa uzinzo lomatshini wePCB ngexesha lokusebenza kwexesha lokuphila kwePCB, libhekisa kubushushu obubalulekileyo apho i-substrate inyibilika ukusuka kulwelo oluqinileyo ukuya kulwelo oluyirubha, sabiza inqaku leTg, okanye indawo yokunyibilika ukuze kube lula ukuyiqonda. Inqanaba leTg liphezulu, imfuneko yokushisa ephezulu yebhodi iya kuba xa i-laminated, kunye nebhodi ye-Tg ephezulu emva kwe-laminated nayo iya kuba nzima kwaye i-brittle, ezuzayo kwinkqubo elandelayo efana ne-drilling mechanical (ukuba ikhona) kwaye ugcine iimpawu ezingcono zombane ngexesha lokusetyenziswa.
Iqondo lokushisa lokutshintsha kweglasi kunzima ukulinganiswa ngokuchanekileyo ngokuqwalasela izinto ezininzi, kunye nesixhobo ngasinye sinesakhiwo sayo semolekyuli, ke ngoko, izixhobo ezahlukeneyo zineqondo lobushushu leglasi elahlukileyo, kwaye izinto ezimbini ezahlukeneyo zinokuba nexabiso elifanayo le-Tg nokuba zineempawu ezahlukeneyo, oku kusenza sikwazi ukukhetha olunye ukhetho xa izinto ezifunekayo ziphelile.
Iimpawu zezinto eziphezulu zeTg
l Uzinzo olungcono lwe-thermal
l Ukuchasana kakuhle nokufuma
l I-coefficient yokwandisa i-thermal ephantsi
l Ukumelana neekhemikhali ezilungileyo kunezinto eziphantsi zeTg
l Ixabiso eliphezulu lokumelana noxinzelelo lwe-thermal
l Ukuthembeka okugqwesileyo
Izinto ezilungileyo zeTg PCB ePhakamileyo
Ngokubanzi, i-PCB FR4-Tg eqhelekileyo yi-130-140 degrees, i-Tg ephakathi inkulu kune-150-160 degrees, kwaye i-Tg ephakamileyo inkulu kune-170 degrees, i-High FR4-Tg iya kuba nokumelana nomatshini kunye neekhemikhali ezingcono kubushushu kunye nokufuma kunomgangatho we-FR4, Nazi ezinye iingenelo ze-Tg PCB ephezulu xa uphonononga:
1. Ukuzinza okuphezulu: Kuya kuphucula ngokuzenzekelayo ukumelana nobushushu, ukuxhathisa imichiza, ukuxhathisa ukufuma, kunye nokuzinza kwesixhobo ukuba ukwandisa i-Tg ye-PCB substrate.
2. Ukumelana noyilo loxinaniso lwamandla aphezulu: Ukuba isixhobo sinoxinaniso lwamandla aphezulu kunye nexabiso le-calorific ephezulu ngokufanelekileyo, i-Tg PCB ephezulu iya kuba sisisombululo esilungileyo solawulo lobushushu.
3. Iibhodi zesekethe ezinkulu eziprintiweyo zingasetyenziselwa ukutshintsha uyilo kunye neemfuno zamandla zesixhobo ngelixa kuncitshiswa ukwenziwa kobushushu kweebhodi eziqhelekileyo, kunye ne-Tg ephezulu ye-PCBS nayo ingasetyenziswa.
4. Ukhetho olufanelekileyo lwe-multi-layer kunye ne-HDI PCB: Ngenxa yokuba i-multi-layer kunye ne-HDI PCB i-compact kunye ne-circuit dense, iya kubangela izinga eliphezulu lokutshatyalaliswa kobushushu. Ngoko ke, ii-PCB ze-TG eziphezulu ziqhele ukusetyenziswa kwi-multi-layer kunye ne-HDI PCBs ukuqinisekisa ukuthembeka kokuveliswa kwe-PCB.
Ingaba ufuna nini iHigh Tg PCB?
Ngokuqhelekileyo ukuqinisekisa ukusebenza kakuhle kwePCB, ubushushu obuphezulu bokusebenza kwebhodi yesekethe kufuneka bube malunga nama-20 degrees ngaphantsi kobushushu beglasi. Ngokomzekelo, ukuba ixabiso le-Tg lezinto eziphathekayo liyi-degrees ze-150, ngoko ukushisa kwangempela kokusebenza kwale bhodi yesiphaluka akufanele kube ngaphezu kwe-130 degrees. Ke, ufuna nini iTg PCB ephezulu?
1. Ukuba isicelo sakho sokugqibela sifuna ukuthwala umthwalo oshushu ngaphezulu kwe 25 degrees centigrade ngaphantsi kwe Tg, ke iTg PCB ephezulu lolona khetho lulungileyo kwiimfuno zakho.
2. Ukuqinisekisa ukhuseleko xa iimveliso zakho zifuna ubushushu bokusebenza obulingana okanye obungaphezulu kwe-130 degrees, i-Tg PCB ephezulu ilungile kwisicelo sakho.
3. Ukuba isicelo sakho sifuna i-PCB enemigangatho emininzi ukuhlangabezana neemfuno zakho, ngoko ke imathiriyeli ye-Tg ephezulu ilungile kwi-PCB.
Usetyenziso olufuna iTg PCB ephezulu
l Isango
l Inverter
l I-antenna
l I-Wifi Booster
l Uphuhliso lweeNkqubo ezizinzisiweyo
l IiNkqubo zeKhompyutha ezizinzisiweyo
l Ac Power Supplies
l isixhobo RF
l Ishishini le-LED
I-Best Tech inamava atyebileyo ekwenzeni i-High Tg PCB, sinokwenza ii-PCB ukusuka kwi-Tg170 ukuya kwi-Tg260 ephezulu, okwangoku, ukuba isicelo sakho kufuneka sisebenzise phantsi kobushushu obuphezulu obufana ne-800C, ungayisebenzisa ngconoIbhodi yeCeramic enokudlula -55 ~ 880C.
