Hauv kev lag luam hluav taws xob niaj hnub no, tshwj xeeb tshaj yog nyob rau hauv siab - lub zog, siab - zaus, thiab siab - kev siv kub, ceramic circuit boards tau dhau los ua cov khoom tseem ceeb uas tsis tseem ceeb vim lawv cov thermal conductivity zoo heev, rwb thaiv tsev, thiab tshuaj lom neeg ruaj khov. Los ntawm aerospace mus rau cov khoom siv kho mob, los ntawm LED teeb pom kev zoo rau lub zog tshiab, tom qab lawv cov kev ua tau zoo tshaj yog cov txheej txheem tsim khoom raug thiab nruj. Kab lus no yuav txheeb xyuas qhov kev taug kev ntawm cov kab hluav taws xob ceramic los ntawm "hmoov" mus rau "cov khoom tiav."
Kauj Ruam 1: Kev Npaj Substrate - "Shaping" Ceramic Hmoov
Cov txheej txheem pib nrog kev npaj ntawm ceramic substrate. Cov khoom siv ceramic feem ntau suav nrog alumina, aluminium nitride, thiab beryllium oxide. Ua ntej, siab -purity ultrafine ceramic hmoov yog tov nrog organic binders, plasticizers, thiab lwm yam., los ua ib qho slurry. Tom qab ntawd, nws yog zoo li siv ib qho ntawm peb lub ntsiab technologies hauv qab no:
Casting Casting: Qhov no yog cov txheej txheem feem ntau siv. Lub slurry yog kis mus rau hauv ib tug precisely tuab, niaj hnub zaj duab xis ntawm ib tug tsiv substrate siv ib tug kws kho mob hniav, thiab ces qhuav los ua ib tug ntsuab ceramic daim kab xev. Txoj kev no yog tsim rau kev tsim loj - cheeb tsam, nyias substrates.
Dry pressing: Ceramic hmoov yog ntim rau hauv pwm thiab nias rau hauv cov duab hauv siab. Txoj kev no yog qhov ua tau zoo thiab tsim nyog rau kev tsim cov substrates nrog cov duab tsis tu ncua thiab cov tuab loj.
Isostatic pressing: Isotropic high pressure is applied to powder encapsulated in a flexible mold, resulting in a green body with higher density, more uniform structure, and superior performance.
Lub cev ntsuab tsim yog hu ua "ntsuab ceramic." Nyob rau theem no, nws lub zog yog qhov tsawg, ua rau nws yooj yim rau tshuab, laum qhov, lossis txiav.
Kauj ruam 2: Los ntawm -qhov metallization-Tsim 3D interconnect "bridge"
Txhawm rau kom ua tiav cov hluav taws xob sib txuas ntawm cov txheej txheem sib txawv, dhau los ntawm - qhov yuav tsum tau tho rau hauv daim ntawv ntsuab ceramic thiab tom qab ntawd metallized thiab sau. Cov kauj ruam no yog qhov tseem ceeb:
Drilling: Siv cov cuab yeej siv tshuab los yog lasers, me me los ntawm - qhov yog tsim nyob rau hauv daim ntawv ntsuab ceramic. Laser drilling muaj ntau dua precision thiab yog tshwj xeeb tshaj yog haum rau siab - ceev interconnect boards.
Lub qhov phab ntsa pretreatment thiab filling: Tom qab ntxuav thiab ua kom lub qhov phab ntsa, conductive paste (feem ntau tungsten los yog molybdenum-manganese muab tshuaj txhuam) tau ntim rau hauv lub qhov uas siv tshuaj ntsuam luam ntawv los yog lub tshuab nqus tsev filling tshuab los ua cov kav dej.
Kauj Ruam 3: Circuit Printing – Kos lub Electronic "Vasculars"
Cov qauv Circuit Court yog tsim los ntawm tuab- zaj duab xis tshuab luam ntawv. Lub vijtsam zoo lossis lub npog ntsej muag yog tsim los ntawm cov qauv tsim hauv Circuit Court, thiab cov tshuaj pleev xim hlau (xws li kub, nyiaj, palladium, lossis nyiaj) yog luam tawm rau ntawm daim ntawv ntsuab ntsuab. Lub paste adheres rau lub substrate los ntawm cov qauv ntawm qhov screen, precisely piav qhia txog txoj kev ntawm cov conductors. Rau cov kab hluav taws xob zoo dua, nyias - cov txheej txheem zaj duab xis (xws li sputtering lossis electroplating) yuav raug siv.
Kauj Ruam 4: Lamination thiab Co-firing - Sublimation los ntawm High-Tsub Fusion
Rau multilayer ceramic circuit boards, cov txheej txheem luam tawm ntawm cov nplooj ntawv ntsuab ntsuab yuav tsum tau ua kom zoo thiab sib dhos, tom qab ntawd laminated nyob rau hauv qhov kub thiab txias kom nruj rau hauv ib chav tsev.
Tom qab ntawd, cov kauj ruam tseem ceeb tshaj plaws nyob rau hauv tag nrho cov txheej txheem pib - co- tua. Lub cev ntsuab laminated yog muab tso rau hauv qhov kub siab -kub sintering rauv thiab sintered nyob rau hauv ib tug ua tib zoo tswj qhov kub thiab txias profile (feem ntau saum toj no 1500 degree) thiab ib tug tiv thaiv cua (xws li hydrogen los yog nitrogen). Ob qhov kev hloov pauv tseem ceeb tshwm sim thaum tus txheej txheem no:
Organic teeb meem tshem tawm thiab combustion: Organic teeb meem xws li binders nyob rau hauv lub ntsuab lub cev yog kiag li decomposed thiab volatilized.
Ceramic densification thiab hlau sintering: Ceramic hais fuse ntawm qhov kub thiab txias, shrink, thiab tsim ib tug ntom, nyuaj substrate; Tib lub sijhawm, cov khoom hauv cov hlau slurry sinter ua ke thiab ruaj khov nrog cov ceramic matrix, ua rau siab - zog conductive circuitry.
Kev ua tiav ntawm co- txheej txheem tua hluav taws ncaj qha txiav txim siab lub zog txhua yam, thermal conductivity, thiab hluav taws xob khoom ntawm cov khoom kawg.
Kauj Ruam 5: Tshaj tawm -kev ua haujlwm thiab Kev Kho Hniav - Tiav thiab "Kev Tiv Thaiv"
Lub sintered substrate tseem yuav tsum tau ib tug series ntawm ncej- ua cov kauj ruam:
Puab txiav: Siv laser txiav los yog lub tshuab dicing, loj sintered boards muab faib rau hauv ib tug neeg Circuit Court board units.
Kev kho qhov saum npoo: txhawm rau txhim kho kev ua kom muaj zog thiab oxidation tsis kam, kev kho saum npoo yog siv rau cov khoom siv hlau, xws li electroless npib tsib xee / kub plating, electroplating npib tsib xee / kub plating, los yog OSP (Optical Sterilization Preservative).
Kev Tshuaj Xyuas thiab Kev Ntsuas: Thaum kawg, cov txheej txheem tswj xyuas kev ua tau zoo, suav nrog kev tshuaj ntsuam xyuas qhov muag, X-ray tshuaj xyuas, thiab kev ntsuas hluav taws xob, xyuas kom meej tias txhua lub rooj tsav xwm ceramic ua tau raws li cov qauv tsim thiab kev ntseeg tau.
Xaus
Kev tsim cov khoom siv hluav taws xob ceramic yog ib qho kev kos duab zoo nkauj uas sib txuas cov ntaub ntawv science, precision mechanics, thiab thermal engineering. Los ntawm micron- qib hmoov mus rau lub rooj tsav xwm Circuit Court uas ua haujlwm muaj zog, txhua kauj ruam ntawm cov txheej txheem yuav tsum tau ua tib zoo saib xyuas kom meej. Nws yog cov txheej txheem nyuaj thiab paub tab uas tau txais txiaj ntsig ceramic Circuit boards nrog qhov tshwj xeeb zoo ntawm kev ua haujlwm ruaj khov hauv qhov chaw huab cua, ntsiag to txhawb kev txhim kho sai ntawm cov cuab yeej niaj hnub.