Ceramic PCBs siv ceramics ua lawv cov ntaub ntawv hauv paus, thiab lawv xav tau kev tsim khoom kub ntau dua li lwm cov PCBs. Raws li cov khoom siv hauv PCB, ceramics siv rau PCBs muaj qhov zoo ntawm FR4 thiab hlau. FR4 cov ntaub ntawv yog hluav taws xob insulating, tab sis cov thermal conductivity tsis zoo; txhuas thiab tooj liab muaj thermal conductivity zoo heev, tab sis lawv yog cov conductors. Ceramic PCBs muaj cov thermal conductivity zoo thiab tsis tas yuav muaj hluav taws xob rwb thaiv tsev txheej vim ceramics yog cov insulators zoo.

Thaum cov ceramic PCBs txuas nrog LED chips, ICs, thiab lwm yam khoom, lawv dhau los ua ceramic PCBAs. LEDs tuaj yeem sib sau ua ke ntawm ceramic PCBs los ntawm kev sib txuas ntawm hlau los yog flip-chip txoj kev. Ceramic PCBAs feem ntau yog cov khoom tseem ceeb hauv kev siv hluav taws xob siab thiab kev siv ntau zaus, xws li lub tsheb ntsuas hluav taws xob, lub tshuab kho qhov muag sib txawv, hloov pauv hloov pauv, roj teeb hnub ci, lub teeb ci LED tam sim no ...

Vim li cas ceramic PCB thiaj li nrov?

Siab Thermal Expansion

Thawj qhov laj thawj yog vim li cas ceramic boards thiaj li nrov hauv cov khoom siv hluav taws xob yog lawv cov thermal coefficient zoo heev. Nws yog qhov zoo uas yuav tsum nco ntsoov tias cov khoom siv hluav taws xob ceramic yuav luag sib tw silicon thiab tuaj yeem ua raws li cov khoom sib txuas. Tsis tas li ntawd, koj tuaj yeem siv nws ua tus cais tawm. Yog li ntawd, muaj kev siv ntau tshaj plaws rau cov khoom siv thermal ntawm ceramic boards, txawm tias nyob rau hauv cov xwm txheej tsis zoo.

Kev ruaj ntseg

Daim ntawv thov ntawm ceramic coj lub peev xwm ruaj khov dielectric, thiab koj tuaj yeem hloov qhov sib npaug mus rau hauv ib feem ntawm cov xov tooj cua tsis zoo los ua kom koj lub cuab yeej lub zog. Txawm li cas los xij, txawm tias lub ntsej muag toughness, cov ntaub ntawv ceramic tuaj nrog qhov muaj peev xwm tiv thaiv cov tshuaj yaig. Ceramic's tshuaj tiv thaiv tuaj yeem hloov mus rau kev tiv thaiv cov kua thiab dej noo.

Ntau yam

Koj tuaj yeem tsim ntau qhov kev siv los ua ke nrog lub rooj tsavxwm hlau nrog lub siab thermal expansion. Tsis tas li ntawd, koj tseem tuaj yeem tig cov tub ntxhais hlau mus rau hauv kev txhim khu kev qha siv cov txheej txheem sintering. Yog li ntawd, daim ntawv thov ntawm ceramic PCB tau txais txiaj ntsig vim nws qhov kev ua haujlwm siab.

Durability

Cov txheej txheem ceramic board fabrication tsim durability los ntawm kev siv cov khoom tshwj xeeb, xws li toughness. Qhov ntawd tiv thaiv koj lub PCB los ntawm kev hnav thiab tsim kua muag. Yog li koj tuaj yeem ntseeg tau tias koj yuav tsis hloov koj lub PCB sai vim tias nws lub peev xwm qeeb qeeb. Tsis tas li ntawd, lub siab thermal kuj ntawm ceramic PCB ua rau nws xav tias tus txheej txheem decomposition decelerated.

Adaptability

Thaum kawg, kev siv cov hlau cores tuaj yeem ua haujlwm tsis muaj zog uas muaj cov khoom siv tawv tawv. Cov cuab yeej no ua rau nws yooj yim dua rau siv ceramic PCBs nyob rau hauv txhua lub xeev ntawm teeb meem vim muaj kev tiv thaiv corrosion thiab ib txwm hnav thiab tsim kua muag.

Qhov zoo ntawm ceramic PCB

Thaum tshav kub kub dissipation yog qhov txiaj ntsig tseem ceeb uas cov ceramic muaj ntau dua cov khoom siv xws li FR-4 thiab hlau clad PCB. Vim tias cov khoom siv tau muab tso ncaj qha rau ntawm cov laug cam, thiab tsis muaj txheej txheej cais, qhov ntws ntawm cov cua sov los ntawm cov laug cam yog qhov ua tau zoo dua. Tsis tas li ntawd, cov khoom siv ceramic tuaj yeem raug kev kub ntxhov los ntawm kev ua haujlwm siab (txog 350 ° C), dab tsi ntxiv, nws muaj cov coefficient qis heev ntawm thermal expansion (CTE), uas tso cai rau kev sib tw ntxiv rau PCB tsim.

Piv nrog rau cov PCBs ib txwm muaj cov ntaub ntawv hauv qab yog epoxy iav fiber ntau, polyimide, polystyrene thiab phenolic resin, ceramic PCBs muaj cov khoom nram qab no:

Zoo heev thermal conductivity

Tiv thaiv tshuaj erosion

Compatible mechanical siv

Ua kom yooj yim rau kev siv high-density tracing

CTA tivthaiv compatibility

Qhov kawg taw tes

Cov tsoos PCBs ua ke nrog cov hauv paus organic substrates nce mus rau qee qhov txawv txav, muaj kev ntseeg siab, raug zoo, thiab kav ntev nrog kev qhia txog cov cuab yeej siv hluav taws xob hauv kev lag luam hluav taws xob. Ceramic circuit boards yeej yog ib hom tshiab ntawm PCB uas tau txais qhov tseem ceeb hauv kev lag luam hluav taws xob vim lawv cov yam ntxwv sib txawv.

Ceramic PCBs muab ntau qhov zoo dua li cov rooj sib tham. Ceramic PCBs yog qhov hloov tau yooj yim dua, tsis tshua muaj qhov nyuaj, thiab ua haujlwm zoo dua li cov rooj sib tham sib tham vim lawv cov thermal conductivity thiab qis expansion coefficient (CTE). Cov kws tshaj lij ntseeg tias cov PCBs no yog qhov kev xaiv zoo tshaj plaws rau kev txiav cov khoom siv hluav taws xob me me. Vam tias, koj tau txais lub tswv yim hais txog Yuav Ua Li Cas Paub Qhov Zoo Tshaj Ceramic PCB thiab tam sim no koj tuaj yeem xaiv qhov zoo tshaj plaws rau koj.