Lub siab -frequency kev sib txuas lus pawg thawj coj saib, uas yog lub luag hauj lwm tseem ceeb rau kev ua tiav lub hom phiaj no, yog nce qhia nws qhov tseem ceeb irreplaceable. Los ntawm kev nrov nrov ntawm 5G kev sib txuas lus mus rau kev nthuav dav ntawm kev sib txuas lus satellite, siab - cov rooj sib txuas lus zaus ua lub luag haujlwm tseem ceeb hauv ntau qhov chaw thiab tau dhau los ua lub zog tseem ceeb uas ua rau muaj kev vam meej ntawm kev sib txuas lus niaj hnub no.
Cov yam ntxwv thiab cov hauv paus ntsiab lus ntawm siab - lub rooj sib tham zaus
High zaus kev sib txuas lus board, tseem hu ua high - zaus sib txuas lus Circuit Court board los yog RF Circuit Court board, yog ib tug luam Circuit Court board ua los ntawm tshwj xeeb uas tsis muaj dielectric tsis tu ncua thiab tsis tshua muaj dielectric poob cov ntaub ntawv, nrog high electromagnetic zaus. Nws txoj hauv kev ua haujlwm yog ua raws li cov yam ntxwv ntawm kev sib kis ntawm siab - zaus cov cim, thiab kev sib kis tus cwj pwm ntawm cov teeb liab nyob rau hauv siab -frequency band yog txawv heev ntawm qhov tsawg -frequency band. Txhawm rau kom muaj kev sib kis tau zoo thiab ruaj khov, siab - cov rooj sib tham zaus muaj kev txiav txim siab tshwj xeeb hauv kev xaiv cov khoom.
Kev siv cov khoom siv tsis tshua muaj dielectric tsis tu ncua thiab tsis tshua muaj dielectric poob
Qhov dielectric tas li thiab dielectric poob yog cov cim tseem ceeb rau kev ntsuas qhov ua tau zoo ntawm cov khoom siv sib txuas lus siab - zaus. Tsawg dielectric tsis tu ncua tuaj yeem txo cov teeb liab kis tau tus mob qeeb thiab ua kom lub teeb liab kis tau tus nqi sai. Piv txwv li, hauv 5G kev sib txuas lus, cov teeb liab yuav tsum xa cov ntaub ntawv ntau hauv lub sijhawm luv luv. Cov ntaub ntawv uas tsis tshua muaj dielectric tsis tu ncua tuaj yeem ua kom cov ntaub ntawv xa mus sai thiab zam kev sib txuas lus lag luam los ntawm kev sib kis qeeb. Tsawg dielectric poob tuaj yeem txo lub zog poob ntawm cov teeb liab thaum lub sij hawm kis tau tus mob, txo qhov℃ntawm cov teeb liab distortion, thiab xyuas kom meej qhov tseeb thiab qhov tseeb ntawm cov teeb liab. Cov ntaub ntawv raws li polytetrafluoroethylene, nrog rau lawv cov khoom zoo heev Dk thiab tsawg Df, tau dhau los ua ib qho ntawm cov khoom siv feem ntau siv rau siab - cov rooj sib txuas lus zaus thiab tau siv dav hauv kev sib txuas lus hauv paus chaw nres tsheb, kev sib txuas lus satellite, thiab lwm yam uas yuav tsum tau muaj kev sib txuas lus zoo heev.
Muaj tseeb impedance tswj
Kev sib piv impedance yog qhov tseem ceeb hauv siab -frequency signal kis. Yog tias qhov impedance ntawm txoj kab tsis sib xws, nws yuav ua rau muaj teeb meem kev xav, cuam tshuam rau qhov zoo ntawm cov teeb liab kis tau tus mob. Lub siab -frequency kev sib txuas lus pawg thawj coj ua tiav kev tswj hwm ntawm tus yam ntxwv impedance los ntawm kev teeb tsa qhov dav, tuab, thiab qhov txheeb ze ntawm lub voj voog mus rau lub substrate. Feem ntau hais lus, cov yam ntxwv ntawm impedance qhov tseem ceeb suav nrog 50 Ω thiab 75 Ω, thiab cov txiaj ntsig tshwj xeeb yog nyob ntawm qhov sib txawv ntawm daim ntawv thov thiab cov teeb liab xa mus. Piv txwv li, hauv RF circuits, kom ntseeg tau tias kev sib kis tau zoo ntawm cov teeb liab los ntawm lub teeb liab mus rau qhov chaw thauj khoom, cov kab impedance yuav tsum tau tswj nruj me ntsis ntawm 50 Ω kom txo cov teeb liab kev xav thiab txhim kho kev sib kis.
Kev nyuaj siab ntawm - zaus sib txuas lus board
Nyuaj hauv kev ua cov khoom siv
Cov ntaub ntawv tshwj xeeb uas siv rau hauv siab - zaus sib txuas lus boards, txawm hais tias muaj hluav taws xob ua tau zoo, ntsib ntau yam teeb meem thaum ua. Noj PTFE cov khoom ua piv txwv, nws cov khoom siv tshuaj muaj zog thiab nws muaj zog tiv thaiv cov tsoos drilling, etching thiab lwm yam kev ua haujlwm. Thaum lub sij hawm drilling, cov khoom siv xyaum zoo tib yam yog qhov nyuaj rau kev nkag mus thiab ua rau muaj teeb meem xws li cov phab ntsa ntxhib thiab burrs, uas cuam tshuam rau qhov zoo ntawm lub qhov thiab tom qab metallization kev kho mob. Thaum lub sij hawm etching txheej txheem, nws yog ib qho nyuaj rau precisely tswj lub etching tus nqi ntawm PTFE cov khoom, uas yuav ua rau uneven etching thiab ib tug txo nyob rau hauv Circuit Court raug. Tsis tas li ntawd, tus nqi ntawm cov ntaub ntawv tshwj xeeb no kuj yog siab heev, thiab txhua yam kev ua yuam kev tuaj yeem ua rau poob nyiaj txiag tseem ceeb, uas ua rau muaj kev xav tau siab heev ntawm kev ua cov thev naus laus zis thiab qib kev txawj ntawm cov neeg ua haujlwm.
High precision graphics thiab interlayer alignment
Nrog rau kev txhim kho ntawm kev sib txuas lus thev naus laus zis, cov kab hluav taws xob ntawm siab - cov rooj sib tham zaus tau nce zuj zus ntxiv, thiab cov kev xav tau ntawm cov duab kos tau nce ntxiv. Qhov tsawg kawg nkaus kab dav / qhov sib nrug tuaj yeem ncav cuag 2.5mil lossis txawm me dua, uas ua rau muaj kev nyuaj ntawm cov txheej txheem photolithography thaum hloov cov qauv. Thaum lub sijhawm txheej txheem photolithography, kev xaiv ntawm photoresist, kev tswj xyuas meej ntawm qhov tsis raug, thiab qhov tseeb ntawm kev tsim cov npog ntsej muag tag nrho cuam tshuam ncaj qha rau qhov zoo ntawm cov qauv Circuit Court kawg. Txawm tias me me sib txawv tuaj yeem ua rau muaj teeb meem xws li luv luv Circuit Court lossis qhib Circuit Court hauv Circuit Board, cuam tshuam rau nws qhov kev ua tau zoo. Lub caij no, siab - zaus sib txuas lus boards feem ntau muaj ntau - txheej txheej nrog cov kev cai nruj heev rau kev sib xyaw ua ke. Thaum lub sij hawm lamination txheej txheem, ib qho offset ntawm ib txheej yuav ua rau qhov muag tsis pom qhov, faus qhov, thiab cov kab predetermined tsis tuaj yeem sib txuas kom raug, yog li cuam tshuam rau cov teeb liab kis. Yog li ntawd, cov cuab yeej ua haujlwm siab tshaj plaws thiab siab -cov cuab yeej laminating yog xav tau los xyuas kom meej kev sib raug zoo ntawm txhua txheej.Strict impedance tswj yuav tsum tau
Ntxiv nrog rau qhov tseeb impedance, ua tiav kev tswj xyuas nruj impedance hauv cov txheej txheem ntau lawm kuj yog qhov nyuaj. Kev hloov pauv ntawm qhov kub thiab av noo hauv qhov chaw tsim khoom, nrog rau qhov sib txawv ntawm cov khoom siv raw, txhua yam yuav cuam tshuam rau qhov tseeb impedance tus nqi ntawm lub Circuit Court. Piv txwv li, qhov kub thiab txias tuaj yeem ua rau muaj kev hloov pauv ntawm qhov dielectric tas li ntawm cov khoom, yog li hloov qhov impedance ntawm Circuit Court. Yuav kom daws tau qhov teeb meem no, cov tuam txhab tsim khoom yuav tsum tsim kom muaj kev tswj hwm kev tsim khoom nruj me ntsis los saib xyuas thiab tswj ntau yam tsis zoo hauv cov txheej txheem tsim khoom hauv lub sijhawm. Nyob rau tib lub sijhawm, nyob rau hauv cov txheej txheem kev yuav khoom ntawm cov khoom siv raw, kev tswj xyuas nruj yuav tsum tau ua kom ntseeg tau tias kev ua tau zoo ntawm txhua pawg ntawm cov khoom. Tsis tas li ntawd, cov cuab yeej ntsuas impedance siab heev yuav tsum tau siv los ntsuas qhov siab - zaus sib txuas lus boards tsim los ntawm ib thooj, tshawb xyuas raws sij hawm thiab kho impedance sib txawv, thiaj li ua tau raws li qhov siab - cov khoom yuav tsum tau ua.