Keeb kwm ntawm txoj kev loj hlob ntawm kev lag luam hluav taws xob ua pov thawj tias cov khoom siv hluav taws xob muaj feem cuam tshuam nrog kev siv tshuab hluav taws xob, ua lub hauv paus thiab lub hauv paus rau kev txhim kho kev lag luam hluav taws xob thiab yog ib feem tseem ceeb ntawm kev kawm siab -tech fields.
Electronic Materials Background
Nyob rau hauv txoj kev loj hlob ntawmhluav taws xob sib dhosthev naus laus zis, cov khoom siv hluav taws xob siv hluav taws xob kuj ua lub luag haujlwm tseem ceeb. Tam sim no, muaj ntau yam khoom siv tshuaj lom neeg muaj feem xyuam rau cov txheej txheem sib dhos, suav nrog ntau yam substrates, solder resist inks, pre-coated fluxes, thiab cua kub leveling fluxes siv hauv PCB manufacturing; photoresists, siab -purity reagents thiab gases siv nyob rau hauv cov khoom siv thiab kev sib txuas ua ke; thiab ntau yam khoom ntim. PCBA los ua ke kuj siv ntau yam solders, fluxes, ntxuav cov neeg ua haujlwm, cov nplaum nplaum, thermally conductive adhesives, thiab cov nplaum nplaum. Phau ntawv no tsuas yog hais txog cov khoom siv tshuaj lom neeg siv hauv cov txheej txheem sib dhos PCBA, piv txwv li, cov txheej txheem cov ntaub ntawv siv hauv kev sib dhos hluav taws xob. Cov ntaub ntawv no ua lub luag haujlwm tseem ceeb hauv cov khoom lag luam kev sib txuas lus zoo.
Kev sib xyaw ntawm Electronic Assembly Auxiliary Materials
Txhais ntawm Electronic Assembly Auxiliary Materials
Nyob rau hauv cov txheej txheem ntawm kev sib sau cov khoom siv hluav taws xob, cov txheej txheem cov ntaub ntawv uas ua lub luag haujlwm pabcuam hauv kev ua haujlwm, xws li: solder, flux, solder paste, chip adhesive (liab kua), underfill adhesive, structural adhesive, thermally conductive adhesive, cleaning agent thiab ntau yam kuab tshuaj (anhydrous ethanol, industrial ethanol), thiab lwm yam. cov ntaub ntawv pab.
Lub luag hauj lwm ntawm cov khoom siv hauv Electronic Assembly
Ntau yam khoom siv pabcuam siv hauv cov txheej txheem tsim khoom ntawm cov khoom siv hluav taws xob raug xaiv los ntawm cov txheej txheem tsim kom tau raws li cov hom phiaj thev naus laus zis. Tsis zoo li cov ntaub ntawv uas tau xaiv thaum lub sij hawm tsim cov khoom tsim, xws li hlau thiab cov ntaub ntawv insulating, uas tawm hauv cov khoom tiav, cov khoom siv hauv cov txheej txheem tsim yog txawv. Lawv tuaj yeem muab faib ua ob pawg hauv qab no:
Cov uas tawm mus tas li nyob rau hauv cov khoom kawg: xws li solder (xws li solder paste) thiab ntau yam nplaum. Thaum cov txheej txheem sib txuas, lawv tsim cov ntaub ntawv tseem ceeb hauv ntau cov pob qij txha los ntawm cov tshuaj tiv thaiv metallurgical lossis physicochemical adhesion nrog cov khoom siv hauv paus. Txhua qhov khoom siv hluav taws xob tau ruaj khov los ntawm kev sib txuas los ntawm cov khoom siv hluav taws xob, txuas ntau txhiab mus rau ntau txhiab ntau yam khoom siv hluav taws xob. Nws tuaj yeem hais tias tsis muaj cov khoom siv, yuav tsis muaj cov khoom siv hluav taws xob niaj hnub no, thiab tib neeg lub neej yuav tsis muaj kev vam meej niaj hnub no.
② Cov uas tsis muaj kab nyob rau hauv cov khoom kawg: xws li flux, tshuaj ntxuav, thiab siab -kab nplaum nplaum.
