Dynamic burn-in method and apparatus
AssigneeFujitsu Limited
InventorsYoshihiro Maesaki, Hiroshi Teshigawara
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Abstract
In a dynamic burn-in apparatus wherein a signal output from a signal generator is input to a semiconductor device to be tested in the burn-in tank, a converter is arranged at the output of the signal generator. The converter increases, by N times, the frequency of the signal output from a signal generator. The signal having the increased frequency and output from the converter, is input to the semiconductor device to be tested in the burn-in tank when the burn-in is operated at high-speed. The frequency of the signal is converted to the higher frequency, and the signal having the higher frequency is provided to the semiconductor device. As the result, the burn-in can be done in a shorter time for a high-speed sophisticated semiconductor device.
Claims4
A dynamic burn-in method for a semiconductor device, comprising the steps of:
- generating a determined signal;
- increasing the frequency of the determined signal;
- and
- providing the signal having the increased frequency to the semiconductor device.
A dynamic burn-in apparatus for a semiconductor device, comprising:
- a signal generator;
- and
- a frequency converter;
- wherein the frequency of the signal output from the signal generator is increased by the frequency converter, and the signal having the increased frequency is provided to the semiconductor device.
A dynamic burn-in apparatus for a semiconductor device, wherein a signal output from a signal generator is provided to a semiconductor device to be tested in the burn-in tank, comprising:
- a converter that is arranged at the output of the signal generator, wherein the frequency of the signal is increased by the converter and the signal output from the converter is provided to the semiconductor device.
Dependencies are inferred from the claim text.