Kev Tsim PCB Ntau Txheej Siab Zaus: Kev Nkag Siab Txog Cov Txheej Txheem Lamination Thiab Kev Tswj Xyuas Zoo
Nrog rau kev nce qib sai ntawm cov khoom siv hluav taws xob, cov PCBs ntau txheej siab tau dhau los ua qhov tseem ceeb hauv cov ntawv thov tshiab xws li 5G kev sib txuas lus, kev taw qhia satellite, thiab radar systems. Thaum cov zaus teeb liab nce ntxiv, qhov zoo ntawm cov txheej txheem lamination ua rau muaj kev ua tau zoo, kev ntseeg siab, thiab lub neej ntev.
Hauv tsab xov xwm no, peb tshawb nrhiav cov kauj ruam tseem ceeb ntawm kev lamination PCB ntau txheej, tshuaj xyuas cov txheej txheem tsis zoo uas feem ntau tshwm sim, thiab hais txog cov kev ntsuas tswj hwm zoo rau cov txiaj ntsig zoo tshaj plaws ntawm kev tsim khoom PCB.
Cov Txheej Txheem Tseem Ceeb ntawm Lamination
1. Kev Npaj Khoom Siv
✔ Kev Xaiv Cov Khoom Siv
Cov PCBs uas muaj zaus ntau xav tau cov ntaub ntawv nrog:
●Qhov tsis hloov pauv dielectric qis (Dk): rau kev sib kis teeb liab sai dua
●Qhov tsis tshua muaj dissipation factor (Df): kom txo qhov poob ntawm lub teeb liab
Cov substrates nyiam suav nrog Rogers thiab Taconic. Piv txwv li, 5G chaw nres tsheb PCBs feem ntau siv cov substrates nrog Dk tus nqi ntawm 3.0–3.5, kom ntseeg tau tias muaj kev ua tau zoo sib xws thoob plaws cov channel ntaub ntawv ceev ceev.
✔ Cov yam ntxwv ntawm cov ntawv ci tooj liab
●Qhov tsis zoo ntawm qhov chaw: txo qhov poob ntawm cov neeg xa hluav taws xob
●Kev huv siab: ua kom muaj kev tiv thaiv qis dua thiab kev xa xov zoo dua
Qhov hnyav tooj liab ib txwm muaj: 1/2 oz lossis 1/4 oz electrolytic tooj liab, zoo tagnrho rau kev ua haujlwm RF.
✔ Kev Sib Txuas Lus Prepreg (PP)
Cov prepregs ua haujlwm ua txheej nplaum hauv lamination. Cov yam tseem ceeb suav nrog:
● Cov ntsiab lus thiab kev ntws ntawm cov resin: yuav tsum phim cov khoom siv hauv paus thiab cov ntawv ci tooj liab
●Muaj ntau hom prepregs siv raws li qhov tuab ntawm PCB thiab suav cov txheej. Kev xaiv prepreg kom raug yuav ua kom muaj kev sib txuas ntawm cov txheej thiab ua haujlwm tau zoo.
2. Kev Tsim Khoom Sab Hauv
✔ Kev Tshawb Fawb thiab Kev Txiav Txim Siab Zoo
●Kev raug photoresist yuav tsum ncav cuag qhov tseeb ntawm micron-level
●Kev sib npaug ntawm cov khoom siv etching yog qhov tseem ceeb kom tswj tau qhov dav ntawm kab / qhov chaw kam rau siab (piv txwv li, 50μm / 50μm)
✔ Kev Tshuaj Xyuas Txheej Sab Hauv
Kev tshuaj xyuas tom qab etching, kev tshuaj xyuas nruj siv AOI (Automated Optical Inspection) thiab kev sim ya probe ua kom ntseeg tau tias tsis muaj qhov tsis zoo ntawm lub circuitry. Txawm tias qhov luv luv lossis qhib me me tuaj yeem ua rau muaj kev puas tsuaj loj heev hauv cov qauv tsim zaus siab tom qab lamination.
3. Kev Ua Haujlwm Lamination
✔ Ua Ntej Lamination (Ua Ntej Nias)
Lub Hom Phiaj: tshem tawm cov pa phem thiab cov khoom tsis huv
●Kub: 60–80°C
● Siab: 1–2 MPa
●Lub Sijhawm: 5–10 feeb
Kev nias ua ntej ua kom cov txheej pib lo rau thiab ua kom cov txheej khoom tiaj tiaj rau cov txiaj ntsig zoo tshaj plaws.
✔ Kub Nias Lamination
Cov txheej txheem tseem ceeb uas cov tshuaj prepreg ntws thiab kho:
●Kub: 180–220°C
● Siab: 5–10 MPa
●Lub Sijhawm: 30–60 feeb
●Qhov kub ntawm lub phaj kub sib npaug: ± 2 ° C yog qhov tseem ceeb kom tsis txhob muaj kev tsis sib npaug ntawm cov tshuaj kho
Cov tshuaj resin yuav tsum sib npaug zos kom puv qhov chaw ntawm cov khaubncaws sab nraud povtseg kom ntseeg tau tias muaj zog lo thiab tsis txhob muaj qhov khoob.
✔ Kev Tswj Txias
●Tus nqi txias zoo tshaj plaws: 1–3°C/feeb
● Tiv thaiv kev ntxhov siab sab hauv thiab kev sib txhuam
Maj mam txias ua rau txo tau kev ntxhov siab ntawm lub tshuab, ua kom muaj kev ruaj khov thiab tiaj tus.
Cov Kev Tsis Zoo ntawm Lamination thiab Cov Hauv Paus Ua Rau
Kev Tshem Tawm ntawm Cov Txheej Txheem
Cov tsos mob:
●Kev sib cais txheej pom los yog me me
●Txo zog tev tawv (
Ua rau:
●Cov tshuaj prepregs uas muaj dej noo los yog cov tshuaj resin tsawg
●Lub siab lossis qhov kub ntawm lamination tsis txaus
●Kev kho cov roj hmab tsis zoo vim yog khaws cia tsis zoo lossis av noo ntau dhau
Kev cuam tshuam:
● Kev txo qis ntawm lub teeb liab thiab kev cuam tshuam
●Kev puas tsuaj ntawm kev ntseeg siab mus sij hawm ntev
Cov Qhov Tsis Muaj Peev Xwm Sab Hauv (Npuas)
Cov tsos mob:
● Pom tau cov qhov cua los ntawm kev kuaj xyuas X-ray
● Ntau yam ntawm qhov me me ntawm lub taub hau pin mus rau qhov me me ntawm millimeter
Ua rau:
● Kev tshem tawm huab cua tsis tiav thaum lub sijhawm ua ntej nias
● Kev kub ceev ua rau muaj pa tawm sai sai
●Kev xaiv cov khoom siv degassing lossis prepreg tsis zoo
Kev cuam tshuam:
● Lub peev xwm ntawm huab cua uas tsis paub tseeb
● Kev hloov pauv theem RF thiab kev poob ntxiv ntawm kev ntxig
PCB Warpage thiab Deformation
Cov tsos mob:
●PCB khoov, ntswj; tshaj 0.5% kev kam rau siab tiaj tiaj
●Kev nyuaj siab hauv kev sib dhos SMT, kev tsis sib haum ntawm cov khoom siv kho tshuab
Ua rau:
●Kev txias tsis sib npaug tom qab lamination
●CTE tsis sib xws thoob plaws cov khaubncaws sab nraud povtseg
●Kev siab tsis sib npaug lossis kev faib tooj liab
Kev cuam tshuam:
● Cov pob qij txha tawg
● Kab tawg thaum muaj kev ntxhov siab
● Txo cov khoom sib dhos thiab kev ntseeg tau ntawm thaj chaw
Rich Full Joy txoj kev txawj ntse hauv kev lamination PCB zaus siab
Nrog kev paub tob hauv kev lag luam hauv kev tsim khoom RF PCB, Rich Full Joy nkag siab txog qhov sib npaug ntawm cov khoom siv, cov qauv thermal, thiab cov txheej txheem precision. Peb cov peev xwm tseem ceeb suav nrog:
●Kev txawj ntse hauv Rogers, Taconic, thiab lwm yam khoom siv siab heev
● Cov txheej txheem tswj kub thiab siab ntawm lamination uas muaj kev ua haujlwm siab
● Cov khoom siv kuaj X-ray, AOI, thiab lub zog tev tawv siab heev
●Kev txhawb nqa kev tsim qauv rau kev tsim khoom (DFM)
Peb xyuas kom meej tias koj cov PCBs ntau txheej siab ua tau raws li cov qauv kev ruaj ntseg ntawm lub teeb liab thiab kev ruaj khov ntawm lub tshuab uas xav tau rau 5G, radar, satellite, thiab aerospace.
Koom Tes Nrog Rich Full Joy
Yog tias koj tab tom nrhiav kev nyuaj ntawm ntau txheej RF PCB lamination, Rich Full Joy yog koj tus khub zoo tagnrho. Peb txoj kev tswj xyuas zoo, kev paub txog cov ntaub ntawv tob, thiab kev daws teeb meem engineering uas tsim tshwj xeeb yuav pab koj:
● Txo cov feem pua ntawm qhov tsis zoo
● Ua kom lub sijhawm mus rau kev lag luam sai dua
●Ua tiav qhov kev ua tau zoo RF tsis sib xws
Tiv tauj peb hnub no los yog ua raws li peb cov kev hloov tshiab txog kev siv tshuab - peb cog lus tias yuav txhawb nqa tiam tom ntej ntawm kev sib txuas lus nrog cov kev daws teeb meem PCB thoob ntiaj teb.
