印刷后要在2小時內(nèi)回流焊膏.Reflow solder paste in 2 hours as soon as possible after printing.SMT生產(chǎn)工藝決定了電子產(chǎn)品的可靠性, 焊膏印刷質(zhì)量的好壞是其關(guān)鍵因素之一.Solder - paste printing plays an important in SMT production, and affects the quality of assemblies.焊膏...