After confirmation by OM, the location of the burn marks was found. It seems that the burn marks were caused by the arc effect during measurement with the 370A curve tracer.
After confirmation by OM, the location of the burn marks was found, indicating that the burn marks were caused by the arc effect during measurement with the 370A curve tracer.
It was confirmed by OM that the location of the burn mark was found. It seems that the burn mark was caused by the arc effect when measured by 370A curve tracer.