Tooj liab yog ib qho ntawm cov khoom siv ntau yam hauv ntiaj teb. Nws cov khoom tshwj xeeb ua rau nws haum rau ntau yam kev siv, suav nrog hluav taws xob conductivity. Tooj liab yog siv dav hauv kev lag luam hluav taws xob thiab hluav taws xob, thiab tooj liab foils yog cov khoom tseem ceeb rau kev tsim cov ntawv luam tawm Circuit Board (PCBs). Ntawm qhov sib txawv ntawm cov ntawv ci tooj liab siv hauv kev tsim cov PCBs, ED tooj liab ntawv ci yog siv dav tshaj plaws.
ED tooj liab ntawv ci yog tsim los ntawm electro-deposition (ED), uas yog ib tug txheej txheem uas muaj cov deposition ntawm tooj liab atoms mus rau ib tug metallic nto los ntawm ib tug hluav taws xob tam sim no. Lub resulting tooj liab ntawv ci yog heev ntshiab, uniform, thiab muaj zoo heev mechanical thiab hluav taws xob zog.
Ib qho txiaj ntsig tseem ceeb ntawm ED tooj liab ntawv ci yog nws qhov sib xws. Cov txheej txheem electro-deposition ua kom ntseeg tau tias cov tuab ntawm cov ntawv ci tooj liab zoo ib yam thoob plaws hauv nws qhov chaw, uas yog qhov tseem ceeb hauv kev tsim PCB. Lub thickness ntawm cov ntawv ci tooj liab feem ntau teev nyob rau hauv microns, thiab nws muaj peev xwm nyob ntawm ob peb microns mus rau ntau kaum ntawm microns, nyob ntawm daim ntawv thov. Lub thickness ntawm cov ntawv ci tooj liab txiav txim siab nws cov hluav taws xob conductivity, thiab cov ntawv tuab tuab feem ntau muaj ntau dua conductivity.
Ntxiv rau nws qhov sib xws, ED tooj liab ntawv ci muaj cov khoom siv zoo heev. Nws yog qhov hloov tau yooj yim thiab tuaj yeem khoov tau yooj yim, zoo li tus, thiab tsim kom haum rau cov contours ntawm PCB. Qhov kev hloov pauv no ua rau nws yog cov khoom siv zoo tshaj plaws rau kev tsim PCBs nrog cov duab geometry nyuaj thiab cov qauv tsim. Ntxiv mus, lub siab ductility ntawm cov ntawv ci tooj liab tso cai rau nws tuaj yeem rov kho dua thiab flexing yam tsis muaj kev tawg lossis tawg.
Lwm yam khoom tseem ceeb ntawm ED tooj liab ntawv ci yog nws cov hluav taws xob conductivity. Tooj liab yog ib qho ntawm cov khoom siv hluav taws xob tshaj plaws, thiab ED tooj liab ntawv ci muaj qhov ua tau zoo tshaj 5 × 10^7 S / m. Qhov siab ntawm conductivity no yog qhov tseem ceeb hauv kev tsim cov PCBs, qhov uas nws ua rau kev xa hluav taws xob ntawm cov khoom sib txuas. Ntxiv mus, qhov hluav taws xob tsis tshua muaj hluav taws xob tsis zoo ntawm cov ntawv ci tooj liab txo qhov poob ntawm lub teeb liab lub zog, uas yog qhov tseem ceeb hauv kev siv high-speed thiab high-frequency.
ED tooj liab ntawv ci kuj tseem tiv taus oxidation thiab corrosion. Tooj liab reacts nrog oxygen nyob rau hauv cov huab cua los ua ib tug nyias txheej ntawm tooj liab oxide ntawm nws nto, uas yuav cuam tshuam nws cov hluav taws xob conductivity. Txawm li cas los xij, ED tooj liab ntawv ci feem ntau yog coated nrog ib txheej ntawm cov khoom tiv thaiv, xws li tin lossis npib tsib xee, tiv thaiv oxidation thiab txhim kho nws cov khoom siv.
Hauv kev xaus, ED tooj liab ntawv ci yog ntau yam thiab cov khoom tseem ceeb hauv kev tsim cov PCBs. Nws cov uniformity, yoog raws, siab hluav taws xob conductivity, thiab tiv thaiv oxidation thiab corrosion ua rau nws yog ib qho khoom siv zoo tshaj plaws rau kev tsim PCBs nrog cov geometries nyuaj thiab kev ua haujlwm siab. Nrog rau qhov kev thov loj zuj zus rau cov khoom siv hluav taws xob ceev thiab cov khoom siv hluav taws xob ntau zaus, qhov tseem ceeb ntawm ED tooj liab ntawv ci tsuas yog teem rau ntau xyoo tom ntej.
Post lub sij hawm: Feb-17-2023