Patent ID: 11921153
Assignee: SK HYNIX INC.
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 10:
11. A monitoring circuit for monitoring a semiconductor device in a digital manner, the monitoring circuit comprising:
an oscillation circuit configured to generate an oscillation signal having a rising characteristic or a falling characteristic according to a threshold voltage level; and
a counter configured to count a number of rises of the oscillation signal based on the rising characteristic or a number of falls of the oscillation signal based on the falling characteristic,
wherein the rising characteristic is determined by at least one of a voltage rises in the oscillation signal, an interval between a rising sections, the number of rising sections and noise of the oscillation signal, and
wherein the falling characteristic is determined by at least one of a voltage falls in the oscillation signal, an interval between a falling section, the number of falling sections and noise of the oscillation signal.