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FAILURE ESTIMATION APPARATUS AND FAILURE ESTIMATION METHOD

  • US 20170023634A1
  • Filed: 05/31/2016
  • Published: 01/26/2017
  • Est. Priority Date: 07/22/2015
  • Status: Active Grant
First Claim
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1. A failure estimation apparatus that includes a history information database storing history information about a plurality of instruments mounted with the same type of semiconductor device and performs failure estimation on a targeted instrument mounted with a semiconductor device whose type equals the type,wherein the history information contains operation information and failure information;

  • wherein the operation information indicates a chronological operating state of the semiconductor device mounted on the instruments;

    wherein the failure information indicates a failure cause of a failed instrument;

    wherein the operating state is categorized into a plurality of classifications;

    wherein the failure estimation apparatus stores one of a program and a formula to implement a life estimation algorithm corresponding to each of the classifications and comprises;

    a history information acquisition portion that acquires most recent history information about the targeted instrument;

    an operating state analysis portion that specifies classification corresponding to an operating state of a semiconductor device mounted on the targeted instrument based on operation information contained in acquired history information;

    a life estimation algorithm learning portion that updates a life estimation algorithm corresponding to a specified classification based on acquired history information when determining that the semiconductor device fails based on failure information contained in acquired history information;

    a life estimation portion that performs life estimation using a life estimation algorithm corresponding to a specified classification when determining that no failure occurs based on failure information contained in acquired history information; and

    a life estimation result notification portion that notifies a result of the life estimation.

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