IiPCB zeCeramic zisebenzisa iiseramics njengesiseko semathiriyeli, kwaye zifuna amaqondo obushushu okwenziwa aphezulu kakhulu kunezinye iiPCB. Njengezinto ezisisiseko zePCB, iiseramikhi ezisetyenziselwa iiPCB zinezibonelelo zazo zombini iFR4 kunye nentsimbi. Izinto ze-FR4 zikhusela umbane, kodwa ukuhanjiswa kwe-thermal kubi; i-aluminiyam kunye nobhedu zine-conductivity egqwesileyo ye-thermal, kodwa zi-conductor. IiPCB zeCeramic zine-thermal conductivity elungileyo kwaye azifuni umaleko wokugquma wombane njengoko iiseramics zizigqumatheli ezilungileyo.

Xa ii-PCB ze-ceramic zixhonywe ngeetshiphusi ze-LED, ii-ICs, kunye namanye amacandelo, ziba yi-ceramic PCBAs. Ii-LED zinokudityaniswa kwi-ceramic PCBs nge-wire bonding okanye indlela ye-flip-chip. IiPCBA zeCeramic zidla ngokuba ziindawo ezingundoqo kumandla aphezulu kunye nezicelo ze-frequency ephezulu, njengabalawuli bamandla ombane wemoto, iinkqubo eziguquguqukayo zamehlo, iziguquli zokutshintshiselana, iibhetri zamandla elanga, izibane ze-LED eziphezulu zangoku...

Kutheni i-ceramic PCB ithandwa kangaka?

Ukwandiswa kweThermal ephezulu

Isizathu sokuqala sokuba kutheni iibhodi ze-ceramic zithandwa kakhulu kwicandelo lombane kukwandiswa kwe-coefficient ye-thermal. Kulungile ukuqaphela ukuba ukuhanjiswa kobushushu besiseko se-ceramic phantse kuhambelana ne-silicon kwaye kunokusebenza njengento yokudibanisa. Ngaphandle koko, unokuyisebenzisa njenge-isolator. Ngoko ke, kukho ukusetyenziswa okuphezulu kwiipropati ze-thermal zeebhodi ze-ceramic, nakwiimeko ezimbi.

Uzinzo

Ukusetyenziswa kwe-ceramic kuzisa umthamo we-dielectric ozinzile, kwaye unokuguqula ibhalansi ibe yilahleko yerediyo yerediyo ukuze ukwandise amandla esixhobo sakho. Nangona kunjalo, ngaphandle kokuqina komphezulu, izixhobo ze-ceramic ziza nokumelana nendalo ngokuchasene nokhukuliseko lweekhemikhali. Ukumelana neekhemikhali zeCeramic kunokutshintsha ukuxhathisa ngokuchasene nolwelo kunye nokufuma.

Ukuguquguquka

Unokwenza iimeko ezininzi zokusetyenziswa ukudibanisa ibhodi engundoqo yentsimbi kunye nokwandiswa kwe-thermal ephezulu. Ngaphandle koko, usenako ukuguqula umbindi wentsimbi ube ngababhexeshi abathembekileyo usebenzisa ubuchule bokuntywila. Ke ngoko, ukusetyenziswa kwe-ceramic PCB kunenzuzo ngenxa yobushushu obuphezulu bokusebenza.

Ukuqina

Inkqubo yokwenziwa kwebhodi yeceramic idala ukuqina ngokusetyenziswa kweempawu ezizodwa, ezinjengokuqina. Oko kuthintela iPCB yakho ukuba ingagugi. Ke unokuqiniseka ukuba awuzukuyitshintsha iPCB yakho kungekudala ngenxa yokuguga okucothayo. Kwakhona, ukuxhathisa okuphezulu kwe-thermal ye-ceramic PCB kuyenza icinge ukuba yinkqubo yokubola.

Ukuguquguquka

Ekugqibeleni, ukusetyenziswa kweentsimbi zetsimbi kunokusebenza njengabathwali abangenakuguquguquka abanikezela ukuqina komatshini. Le propati yenza kube lula ukusebenzisa ii-PCB ze-ceramic nakweyiphi na imeko ngenxa yokumelana okuphezulu kokubola kunye nokunxiba okuqhelekileyo kunye nokukrazula.

Iinzuzo ze-ceramic PCB

Ukutshatyalaliswa kobushushu yeyona nzuzo iphambili yokuba i-ceramic inazo ngaphezu kwezixhobo eziqhelekileyo ezifana ne-FR-4 kunye ne-PCB enentsimbi. Ngenxa yokuba amacandelo abekwe ngokuthe ngqo kwiibhodi, kwaye akukho maleko yodwa, ukuhamba kobushushu kwiibhodi kusebenza kakhulu. Ukongeza, imathiriyeli ye-ceramic inokubandezeleka kubushushu bokusebenza okuphezulu (ukuya kuthi ga kwi-350 ° C), ngaphezu koko, inomlinganiso ophantsi kakhulu wokwandiswa kwe-thermal (CTE), evumela ukhetho olongezelelweyo lokuhambelana kuyilo lwePCB.

Xa kuthelekiswa nee-PCB zemveli ezinezixhobo ze-substrate ze-epoxy glass fiber, i-polyimide, i-polystyrene kunye ne-phenolic resin, ii-PCB ze-ceramic zinezi mpawu zilandelayo:

Ukuqhuba kakuhle kwe-thermal

Ukuxhathisa ukhukuliseko lwekhemikhali

Ukuqina komatshini okuhambelanayo

Yenza kube lula ukuphumeza umkhondo woxinaniso oluphezulu

Ukuhambelana kwecandelo le-CTA

Inqaku lokugqibela

IiPCB zesiNtu ezidityaniswe nesiseko se-organic substrates inkqubela ukuya kuxinaniso oluthile olungaqhelekanga, ukuthembeka okuphezulu, ukuchaneka okulungileyo, kunye nokuqina ngokungeniswa kobuchwepheshe be-chip kwishishini le-elektroniki. Iibhodi zeesekethe zeCeramic luhlobo olutsha lwePCB olufumana ukuvelela kushishino lwe-elektroniki ngenxa yeempawu zabo ezahlukileyo.

IiPCB zeCeramic zibonelela ngeenzuzo ezininzi kwiibhodi eziqhelekileyo. IiPCB zeCeramic ziguquguquka ngakumbi, zincinci kakhulu, kwaye zisebenza ngcono kuneebhodi zeesekethe eziqhelekileyo ngenxa yokushisa okuphezulu kunye ne-coefficient ephantsi yokwandisa (CTE). Iinjineli zikholelwa ukuba ezi PCB lolona khetho lulungileyo lokunciphisa izixhobo zombane zombane. Ngethemba, unombono malunga nendlela yokwazi eyona PCB yeCeramic kwaye ngoku ungakukhethela eyona ilungileyo.