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An interposer is an electrical interface routing between one socket or connection to another. The purpose of an interposer is to spread a connection to a wider pitch or to reroute a connection to a different connection.〔(Package Substrates/Interposers )〕 Interposer comes from the Latin word "interpōnere", meaning "to put up between".〔(interposes - definition of interposes by the Free Online Dictionary, Thesaurus and Encyclopedia )〕 A common example of an interposer is an integrated circuit die to BGA, such as in the Pentium II. This is done through various substrates, both rigid and flexible, most commonly FR4 for rigid, and polyimide for flexible.〔 Silicon and glass are also evaluated as an integration method.〔(Silicon interposers: building blocks for 3D-ICs ) / ElecrtoIQ, 2011〕〔(2.5D Interposers; Organics vs. Silicon vs. Glass ) / Rao R. Tummala, ChipScaleReview Volume 13, Number 4, July-August 2013, pages 18-19〕 Another example of an interposer would be the adapter used to allow a SATA drive to work in a SAS environment. An interposer would allow a SATA drive to plug into a SAS backplane, providing pseudo path redundancy. == See also == * Integrated circuit * Semiconductor fabrication * Die preparation 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Interposer」の詳細全文を読む スポンサード リンク
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