Dab tsi yog qhov yuav tsum tau muaj ntawm Conformal Txheej hauv Kev Tsim Cov Rigid-Flex PCB?

Niaj hnub no, cov khoom siv hluav taws xob hauv ntau qhov kev lag luam yog lub hom phiaj tseem ceeb ntawm kev nrhiav cov khoom zoo, me me tab sis ua haujlwm tau zoo. Lub teeb yuag thiab siab qhov chaw kam rau ua ntawmRigid-Flex PCBua rau lawv zoo tagnrho rau ntau yam kev lag luam, suav nrog aerospace, cov cuab yeej kho mob, cov cuab yeej tswj kev lag luam, thiab cov khoom siv hluav taws xob. Txawm li cas los xij, kev tsim thiab tsim khoom ntawm rigid-flex PCBS muaj cov khoom siv tshwj xeeb thiab kev xav txog kev ua haujlwm, tshwj xeeb tshaj yog thaum nws los txog rau cov txheej txheem txheej. Nyob rau hauv cov ntaub ntawv no, qhov yuav tsum tau ntawm sib xws coatings nyob rau hauvRigid-FlexPCB tsim tau tham, thiab lawv cov teebmeem ntawm cov khoom siv PCB, cov txheej txheem tsim thiab kev ua tau zoo tag nrho yog tham txog.

Cov khoom siv PCB

Kev xaiv cov ntaub ntawv tseem ceeb hauv Rigid-Flex PCB tsim. Cov ntaub ntawv yuav tsum tsis yog tsuas yog txhawb nqa hluav taws xob kev ua tau zoo tab sis kuj tiv taus kev ntxhov siab thiab ib puag ncig. Cov khoom siv dav siv hauv Rigid-Flex PCBs suav nrog:

• Polyimide (PI): Paub txog nws zoo heev thermal stability thiab saj zawg zog, polyimide feem ntau yog siv rau lub saj zawg zog seem ntawm Rigid-Flex PCBs.
• FR-4: Cov khoom siv dav siv rau cov ntu tsis sib xws, FR-4 muab cov hluav taws xob rwb thaiv tsev zoo thiab lub zog txhua yam.
• Tooj: Qhov tseem ceeb rau txoj kev coj ua, tooj liab yog siv ntau yam thicknesses nyob ntawm tus qauv tsim.

Thaum siv cov txheej txheem conformal, nws yog ib qho tseem ceeb uas yuav tsum xav txog qhov sib haum ntawm cov ntaub ntawv no nrog cov tshuaj txheej txheej. Cov txheej yuav tsum ua raws li cov txheej txheem substrate thiab tsis cuam tshuam rau cov khoom hluav taws xob ntawm PCB.

Kev pab them nqi ntawm Conformal Txheej

Conformal txheej yog txheej tiv thaiv siv rau PCBs los tiv thaiv lawv los ntawm ib puag ncig xws li ya raws, plua plav, tshuaj, thiab kub hloov pauv. Nyob rau hauv cov ntsiab lus ntawm Rigid-Flex PCBs, cov kev pab cuam ntawm conformal txheej yog ib qho tseem ceeb heev vim hais tias ntawm lub cim tsim uas combines nruj thiab saj zawg zog ntsiab.

Kev txiav txim siab tseem ceeb rau Conformal Coating Coverage

Daim ntawv thov Uniform: Cov txheej yuav tsum tau siv sib npaug ntawm ob qho tib si nruj thiab hloov tau yooj yim kom ntseeg tau tias muaj kev tiv thaiv zoo ib yam. Kev tsis sib xws tuaj yeem ua rau muaj qhov tsis zoo hauv qee qhov chaw, uas tuaj yeem cuam tshuam rau PCB qhov kev ua tau zoo.

Thickness Tswj: Lub thickness ntawm conformal txheej yog qhov tseem ceeb. Ib txheej tuab heev tuaj yeem cuam tshuam qhov hloov pauv ntawm PCB, thaum txheej nyias nyias yuav tsis muaj kev tiv thaiv txaus. Cov neeg tsim khoom yuav tsum ua tib zoo tswj cov txheej txheem thov kom ua tiav cov thickness uas xav tau.

Yooj yim: Cov txheej txheem txheej txheem yuav tsum tswj nws txoj kev ncaj ncees thaum lub sij hawm khoov thiab flexing ntawm PCB. Qhov no yuav tsum tau xaiv cov coatings uas tau tsim tshwj xeeb rau kev siv tau yooj yim, kom ntseeg tau tias lawv tuaj yeem tiv taus cov neeg kho tshuab kev ntxhov siab yam tsis tau tawg lossis tev.