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When looking at the electronic market it becomes obvious, as there is a need for production output, high system performance, product reliability and long lifecycle, for Microelectromechanical systems(MEMS) to create trust in the eyes of customers. If those conditions would not be met customers would not invest into technologies using MEMS, which justifies the need for testing as a part of a high quality standard. Testing is also fairly important from an economical point of view. As it is said that the failure cost increase by a factor of ten for each stage before it gets discovered. Most MEMS producers check their products at two distinct stages(at the wafer level, and the packaging), as well as random sampling on every stage. If one includes this into cost calculation for a MEMS device the costs for testing amounts to 20-50% of the overall unit costs. Even when looking at producers that manufacture MEMS, and CMOS devices it is not really possible to reduce the costs by including the economy of scopes effect for testing, as both types of device. This is because even though about 80% of the processing is shared, only 20% of the tests are. To decrease these costs for U.S manufactures the National Institute of Standards and Technologies(NIST) conducted several workshops and questionnaires to tackle this issue and increase competitiveness of US companies. ==What is tested?== Due to the wide variety of MEMS it is hard to be very specific as of what is tested the table below shows what is tested in general: 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「MEMS testing」の詳細全文を読む スポンサード リンク
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