Bump凸块
In advanced packaging, a bump is a small conductive projection formed on a die pad or substrate that provides electrical, thermal, and mechanical connection in flip-chip or wafer-level packaging. In localization, the term appears in assembly drawings, bump design rules, package outline specifications, and reliability reports that describe interconnect structures between die and package, often alongside copper pillar or solder ball terminology.
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Where this term appears
Bump appears in packaging documentation, wafer-level packaging process flows, and bump mask design reviews. Translators encounter it in design-rule checks, cross-section diagrams, and DFM guidelines where 'bump pitch', 'bump height', and 'bump co-planarity' must be consistent. The term also occurs in reliability test reports that address bump crack or electromigration failure modes.
Translation checks
A frequent mistake is translating bump as 'bump' in the sense of surface irregularity or collision, or as 'pad' without indicating the raised interconnect. In packaging, bump specifically means a deliberate conductive projection, so blurring it with pad or solder joint misrepresents the structure. Another error is using 'ball' for all bump types, which confuses solder balls with copper pillars or gold stud bumps.
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Related document experience
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