Stressing and testing semiconductor memory cells
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United States of America Patent
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Jul 11, 2017
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N/A
app pub date -
Jul 12, 2016
filing date -
Jul 12, 2016
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Abstract
A memory cell that is readable through a bit line and addressable through a word line can be stressed using a method that includes addressing the memory cell, through the word line, for an addressing time. The memory cell can be stressed by applying a stress voltage to the bit line for a stress voltage time that overlaps with the addressing time for a stress time Δt. A method for testing a memory cell can include writing a data value into the memory cell, stressing the memory cell, reading a stored value from the memory cell and determining whether the stored value corresponds to the data value. A testable memory array can include at least one memory cell that is addressable through a word line and readable through a bit line and a stress circuit for applying a stress voltage to the bit line.
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