Semiconductor device

A semiconductor device, comprising:

• a major element including a first semiconductor region, a first electrode, a second electrode, a first gate electrode, and a first insulating member, the first insulating member being positioned between the first gate electrode and the first semiconductor region, a gate voltage of the first gate electrode controlling a current flowing between the first electrode and the second electrode via the first semiconductor region;
• and
• a recording element electrically connected with the first electrode, the recording element recording, as analog data, a maximum value of a change amount dV/dt of a voltage of the first electrode over time.