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- W917998975 abstract "随着电子元器件的小型化,高集成度的发展,电子组装技术也经历了以下几个发展阶段,手工(50年代)——》半自动插装浸焊(60年代)——》全自动插装波峰焊(70年代)——》SMT(80年代)一》窄间距SMT(90年代)——》如今的超窄间距SMT。" @default.
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- W917998975 date "2011-01-01" @default.
- W917998975 modified "2023-09-27" @default.
- W917998975 title "关于QFN(Quad Flat No—lead)焊接讨论" @default.
- W917998975 hasPublicationYear "2011" @default.
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