Kev paub ntawm Zaus Siab Printed Circuts Board

Rau cov PCB tshwj xeeb uas muaj hluav taws xob ntau zaus, feem ntau hais lus, siab zaus tuaj yeem txhais tau tias yog zaus tshaj 1GHz. Nws qhov kev ua tau zoo ntawm lub cev, qhov tseeb thiab cov kev tsis sib xws yog qhov siab heev, thiab feem ntau yog siv rau hauv tsheb tiv thaiv kev sib tsoo, satellite systems, xov tooj cua thiab lwm yam haujlwm. Tus nqi siab, feem ntau nyob ib ncig ntawm 1.8 yuan ib square centimeter, txog 18000 yuan ib square meter.
Cov yam ntxwv ntawm HF board Circuit Board
1. Lub impedance tswj yuav tsum nruj, thiab txoj kab dav tswj yog nruj heev. Kev kam rau ua dav dav yog li 2%.
2. Vim yog cov phaj tshwj xeeb, qhov adhesion ntawm PTH tooj liab deposition tsis siab. Nws yog feem ntau yuav tsum tau roughen lub vias thiab nto nrog kev pab los ntawm plasma cov cuab yeej kho mob kom cov adhesion ntawm PTH tooj liab thiab solder tiv taus number case.
3. Ua ntej tsis kam vuam, lub phaj tsis tuaj yeem ua hauv av, txwv tsis pub cov adhesion yuav tsis zoo, thiab tsuas yog roughened nrog micro etching kua.
4. Feem ntau ntawm cov phaj yog ua los ntawm cov ntaub ntawv polytetrafluoroethylene. Yuav muaj ntau cov npoo ntxhib thaum lawv tsim nrog cov milling zoo tib yam, yog li yuav tsum muaj cov milling tshwj xeeb.
5. High zaus Circuit Court board yog ib tug tshwj xeeb Circuit Court board nrog high electromagnetic zaus. Feem ntau hais lus, siab zaus tuaj yeem txhais tau tias yog qhov zaus tshaj 1GHz.

Nws qhov kev ua tau zoo ntawm lub cev, qhov tseeb thiab cov kev tsis sib xws yog qhov siab heev, thiab feem ntau yog siv rau hauv tsheb tiv thaiv kev sib tsoo, satellite systems, xov tooj cua thiab lwm yam haujlwm.

Kev soj ntsuam ntxaws ntawm High-Frequency Board parameters
Cov khoom siv hluav taws xob ntau zaus yog ib qho kev txhim kho, tshwj xeeb tshaj yog nrog kev loj hlob ntawm wireless networks thiab satellite kev sib txuas lus, cov ntaub ntawv cov khoom yog txav mus rau kev kub ceev thiab siab zaus, thiab cov khoom sib txuas lus tau hloov mus rau tus qauv ntawm lub suab, video thiab cov ntaub ntawv rau kev sib txuas lus wireless. nrog lub peev xwm loj thiab ceev ceev. Yog li ntawd, tiam tshiab ntawm cov khoom yuav tsum tau high-frequency baseboard. Cov khoom sib txuas lus xws li satellite systems thiab xov tooj ntawm tes txais cov chaw nres tsheb yuav tsum siv cov khoom siv hluav taws xob ntau zaus. Nyob rau hauv ob peb xyoos tom ntej no, nws yuav tsum tau ua kom loj hlob sai, thiab high-frequency baseboard yuav xav tau ntau heev.
(1) Lub thermal expansion coefficient ntawm high-frequency Circuit Court board substrate thiab tooj liab ntawv yuav tsum zoo ib yam. Yog tias tsis yog, cov ntawv ci tooj liab yuav raug cais tawm hauv cov txheej txheem ntawm kev hloov txias thiab kub.
(2) High zaus Circuit Court board substrate yuav tsum muaj cov dej nqus dej tsawg, thiab kev nqus dej siab yuav ua rau dielectric tas li thiab dielectric poob thaum nws cuam tshuam nrog noo noo.
(3) Lub dielectric tas li (Dk) ntawm high-frequency Circuit Court board substrate yuav tsum me me thiab ruaj khov. Feem ntau hais lus, qhov me dua qhov zoo. Lub teeb liab kis tau tus nqi yog inversely proportional rau lub square root ntawm dielectric tas li ntawm cov khoom. High dielectric tas li yog ib qho yooj yim ua rau lub teeb liab kis tau tus mob ncua.
(4) Lub dielectric poob (Df) ntawm high-frequency Circuit Court board substrate khoom yuav tsum me me, uas feem ntau cuam tshuam qhov zoo ntawm cov teeb liab kis tau tus mob. Qhov me dua qhov dielectric poob yog, qhov me me qhov teeb liab poob yog.
(5) Lwm yam kub tsis kam, tshuaj tiv thaiv, cuam tshuam lub zog thiab tev lub zog ntawm high-frequency Circuit Court board substrate cov ntaub ntawv yuav tsum zoo. Feem ntau hais lus, siab zaus tuaj yeem txhais tau tias yog zaus tshaj 1GHz. Tam sim no, lub high-frequency Circuit Court board substrate uas feem ntau siv yog fluorine dielectric substrate, xws li polytetrafluoroethylene (PTFE), uas feem ntau hu ua Teflon thiab feem ntau yog siv saum 5GHz. Tsis tas li ntawd, FR-4 lossis PPO substrate tuaj yeem siv rau cov khoom nruab nrab ntawm 1GHz thiab 10GHz.

Tam sim no, epoxy resin, PPO resin thiab fluoro resin yog peb yam tseem ceeb ntawm cov khoom siv hluav taws xob hluav taws xob ntau zaus, cov khoom siv epoxy resin yog qhov pheej yig tshaj, thaum fluoro resin yog kim tshaj plaws; Xav txog qhov dielectric tas li, dielectric poob, kev nqus dej thiab cov yam ntxwv zaus, fluororesin yog qhov zoo tshaj plaws, thaum epoxy resin yog qhov phem tshaj. Thaum qhov zaus ntawm cov khoom siv yog siab tshaj 10GHz, tsuas yog fluororesin luam boards yuav siv tau. Pom tseeb, kev ua tau zoo ntawm fluororesin high-frequency substrate yog ntau dua li ntawm lwm cov substrates, tab sis nws qhov tsis zoo yog qhov tsis zoo rigidity thiab loj thermal expansion coefficient ntxiv rau cov nqi siab. Rau polytetrafluoroethylene (PTFE), ib tug loj tus naj npawb ntawm inorganic tshuaj (xws li silica SiO2) los yog iav ntaub yog siv los txhawb cov ntaub ntawv muab tub lim los txhim kho cov kev ua tau zoo, thiaj li los txhim kho lub rigidity ntawm lub hauv paus khoom thiab txo nws thermal expansion.

Tsis tas li ntawd, vim lub molecular inertia ntawm PTFE resin nws tus kheej, nws tsis yooj yim rau kev sib txuas nrog cov ntawv ci tooj liab, yog li kev kho tshwj xeeb saum npoo yog xav tau rau kev sib txuas nrog tooj liab ntawv ci. Nyob rau hauv cov nqe lus ntawm txoj kev kho mob, tshuaj etching los yog plasma etching yog nqa tawm nyob rau saum npoo ntawm polytetrafluoroethylene kom lub nto roughness los yog ntxiv ib txheej ntawm nplaum zaj duab xis ntawm tooj liab ntawv ci thiab polytetrafluoroethylene resin los txhim kho cov adhesion, tab sis nws yuav muaj kev cuam tshuam rau lub kev ua haujlwm nruab nrab. Txoj kev loj hlob ntawm tag nrho cov fluorine raws li high-frequency board substrate yuav tsum muaj kev koom tes ntawm raw khoom, kev tshawb fawb units, cov khoom siv, PCB manufacturers thiab kev sib txuas lus cov khoom manufacturers, nyob rau hauv thiaj li yuav khaws cia nrog ceev ceev txoj kev loj hlob. High-Frequency Circuit Boards hauv daim teb no.