Kev Xaiv Cov Khoom Siv Rau Cov PCB Ultrasound Qib Kho Mob
Cov tshuab ultrasound xav tau kev xa cov teeb liab uas raug siab, muaj zaus siab, kev ntseeg tau, thiab kev sib haum xeeb. Lub plawv ntawm cov tshuab no yog PCB, thiab kev xaiv cov khoom siv zoo yog qhov tseem ceeb kom ntseeg tau tias muaj kev nyab xeeb, raug, thiab ua haujlwm tau ntev hauv kev siv kho mob.
Vim li cas kev xaiv cov khoom siv thiaj li tseem ceeb hauv kev kho mob Ultrasound PCBs?
Hauv cov ntawv thov kho mob, tshwj xeeb tshaj yog kev kuaj mob, PCBs yuav tsum:
- Txhawb kev xa xov tooj cua zaus siab (feem ntau 20–100 MHz)
- Xyuas kom muaj kev ruaj khov ntawm thermal thiab kev poob qis ntawm lub teeb liab
- Ua kom sib xws nrog cov khoom siv biocompatible lossis cov khoom tsis muaj tshuaj lom
- Tswj kom ruaj khov thaum lub sijhawm ua kom tsis muaj menyuam
- Muab kev ntseeg siab rau cov khoom siv kho mob me me
Cov Khoom Siv Feem Ntau Siv Rau Kev Kho Mob Ultrasound PCBs
1. Cov Laminates Uas Muaj Zaus Ntau
- Cov ntaub ntawv: Rogers RO4350B, Taconic RF-35
- Nta: Tsis tshua muaj dielectric poob (Df), ruaj khov dielectric tas li (Dk)
- Daim Ntawv Thov: Txheej teeb liab hauv cov laug cam tsav tsheb transducer
2. FR-4 nrog Enhanced Tg
- Cov Khoom Siv: FR-4 Tg170 +, S1000-2M
- Nta: Kev ua haujlwm zoo thermal, pheej yig
- Daim Ntawv Thov: Cov modules fais fab, cov laug cam tswj
3. Polyimide rau Flex Circuits
- Nta: Kev yooj ywm siab, tiv taus cua sov zoo heev
- Daim Ntawv Thov: Kev sib txuas ntawm cov khoom siv ultrasound, cov khoom siv ultrasound hnav tau
4. Cov Khoom Siv Ua Los Ntawm Cov Khoom Uas ...
- Cov Khoom Siv: Al₂O₃ (alumina), AlN (aluminum nitride)
- Nta: Kev ua tau zoo heev ntawm cov cua sov, siv rau cov qauv tsim hluav taws xob me me
- Daim Ntawv Thov: Kev kuaj mob ultrasound siab kawg
Cov Kev Xav Txog Kev Tsim Qauv Tseem Ceeb
- Dielectric Tswj Xyuas Tsis Tu Ncua: Qhov tseem ceeb rau kev tswj hwm qhov ceev ntawm lub teeb liab thiab kev sib phim impedance
- Kev Poob Tangent (Df): Df qis dua ua kom muaj kev pom tseeb zoo dua thiab txo qhov cuam tshuam
- Kev Nqus Dej: Cov ntaub ntawv uas muaj cov dej noo tsawg tsis kam ua puas tsuaj thaum lub sijhawm ua kom tsis muaj menyuam
- RoHS & Biocompatibility Ua Raws Cai: Yuav tsum ua raws li cov cai kho mob xws li RoHS, REACH, thiab FDA cov qauv
Kev xaiv cov ntaub ntawv PCB zoo rau cov khoom siv ultrasound qib kho mob tsis yog tsuas yog kev txiav txim siab engineering xwb - nws yog qhov teeb meem ntawm kev nyab xeeb ntawm tus neeg mob thiab kev ua haujlwm raug. Kev koom tes nrog tus neeg tsim khoom PCB uas muaj kev paub dhau los uas paub txog cov qauv kho mob ua kom koj cov khoom ua tau raws li cov cai thiab kev ua tau zoo.
