Burn-in apparatus having average voltage calculating circuit
First Claim
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1. A burn-in apparatus, comprising:
- a burn-in board on which a plurality of checked devices are mountable;
a device power supply generation circuit supplying test voltage for burn-in test to said plurality of checked devices mounted on said burn-in board;
an average voltage calculating circuit measuring said test voltage supplied to each of said plurality of checked devices and outputting an average voltage; and
a voltage correction circuit outputting control signal to control said device power supply generation circuit in response to said average voltage.
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Abstract
A function test circuit inside a burn-in apparatus is mounted on a burn-in board and specifies a plurality of checked devices which operate normally. An average voltage calculating circuit calculates average voltage for test voltage applied to a plurality of checked devices specified on a mounting section. A voltage correction circuit receives the average voltage and outputs a control signal to control set voltage output from a device power supply generation circuit. Therefore, this burn-in apparatus can set the test voltage applied to the checked devices readily with high accuracy.
6 Citations
6 Claims
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1. A burn-in apparatus, comprising:
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a burn-in board on which a plurality of checked devices are mountable;
a device power supply generation circuit supplying test voltage for burn-in test to said plurality of checked devices mounted on said burn-in board;
an average voltage calculating circuit measuring said test voltage supplied to each of said plurality of checked devices and outputting an average voltage; and
a voltage correction circuit outputting control signal to control said device power supply generation circuit in response to said average voltage. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification