Hauv PCBA tsim, nto mount technology (SMT) yog ib qho ntawm cov txheej txheem tseem ceeb, thiab nws cov kev raug teeb meem tshwj xeeb cuam tshuam rau kev ua haujlwm ntawm cov khoom kawg. Cov txheej txheem SMT muaj xws li peb qhov txuas loj: Solder muab tshuaj luam luam ntawv, tivthaiv Mounting, thiab Fefow Solder:
SOLDER Muab tshuaj luam luam ntawv: Siv tus mesh steel los kho cov hlua khi rau lub pcb. Qhov qhib qhov tseeb ntawm cov mesh steel ntxaij yuav tsum tau tswj hwm hauv ± 15μm, txwv tsis pub nws yooj yim los ua kom muaj kev sib tw luv luv lossis cov khoom sib dhos txias. Tam sim no, xws li dek thiab GKG) tau qhia nano-coated steel meshes los txo cov solder muab tso cai thiab txhim kho cov luam ntawv.
Cov tshuab hluav taws xob sib xyaw ua ke: qhov kev tso ceev ceev rau Fuji (xws li Fuji NT thiab siemens Chaw Tso Cai ntawm} 2 {} 1 (0.6mm) -Level Micro Cheebtsam. Lub mounting ceev tuaj yeem ncav cuag 250, {8}} Cov ntsiab lus ib teev, tab sis lub nozzoo cua siab yuav tsum tau ntsuas tsis tu ncua los tiv thaiv cov khoom sib xyaw los ntawm ya.
Referow Soldering: Cov pa oxygen-dawb referging soldering soldering rauv qhov kub ntawm {1 degree} 5 degree muab tshuaj txhuam cov pob qij txha. Txawm li cas los xij, yog tias lub iav hloov ntsuas kub (tus nqi ntawm PCB (xws li fr {}, high-zaus ptfe) tsis txaus ntseeg, kev ua txhaum cai yog qhov tshwm sim.
Kev Tsim Nyog Kev Lag Luam Sib tw: Nrog rau miniaturization ntawm nti ntim (xws li 01005 Cheebtsam, CSP chips), cov khoom siv smt smt prefes precision txwv. Tsis ntev los no, ASM Pacific Tso Tawm Tshiab Mounter uas siv cov ntaub ntawv siv thev naus laus zis ntau dua los ua kom tiav cov ntaub ntawv thib peb ntawm cov khoom siv thib peb (xws li SIC).
