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Alpha Particle Emission

  • Solderability
  • Solder Reliability
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  • Semiconductor Packaging
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  • Alpha particles are emitted from certain element isotopes, and can potentially change the binary output of a semiconductor from a 0 to a 1 or from a 1 to a 0. This is a cause for concern in high reliability devices.

    Alpha emission is measured in counts/(square centimeter x hour). This measurement refers to the amount of particles that are collected by a sensor over a given amount of time. This measurement falls into various categories such as low count class 1 (LC1) 0.2-0.5 count/centimeter x centimeter/hour.

    Tomorrow I will describe how solder suppliers like Indium Corporation can help lower alpha particle emission within an electronic component.