Patent attributes
A temperature sensor evaluation method is mentioned. The temperature sensor is arranged in a memory device and includes a comparator, a voltage divider and a band gap reference voltage source. The comparator compares a temperature reference voltage that varies with temperature with a plurality of divided voltages generated by the voltage divider. The evaluation method for a plurality of predetermined testing temperatures includes changing the plurality of divided voltages of the voltage divider, using the comparator to compare the divided voltages with the temperature reference voltage to determine the first detection voltage, and based on the voltage difference between a target divided voltage and the first detection voltage, retrieving the value of a temperature error between the sensing temperature of the temperature sensor and the testing temperature.
