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Amada Miyachi Blog

Mark Sunico

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Designing Ring Projections for Hermetic Sealing

Posted by Mark Sunico on Tue, Feb 05, 2013 @ 10:21 AM

In a recent blog, we mentioned using projections as “energy directors” to achieve weld joints at specific, pre-defined locations.  Ring projections - also known as annular projections - are commonly utilized in the electronic packaging industry to achieve hermetically sealed electronic packages, for transistor outline (TO) packages and, more recently, rectangular packages.  Following are some tips for successful design of these ring projections and possible solutions to help you overcome less-than-perfect designs.  

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Topics: projection welding, electronic package sealing

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