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Outsourced Semiconductor Assembly and Test (OSAT)

Companies who perform IC packaging and testing - often referred to as OSAT
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Description

Outsourced semiconductor assembly and test (manufacturing) vendors provide third-party IC-packaging and test services.

The OSATs are merchant vendors. IDMs (integrated device manufacturers) and foundries with internal packaging operations also outsource a certain percentage of their IC-packaging production to the OSATs. The fabless companies also outsource their packaging to the OSATs and/or foundries.


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