A scanning electron microscope includes an irradiation optical system for irradiating an electron beam to a sample; a sample holder for supporting the sample, arranged inside a sample chamber; at least one electric field supply electrode arranged around the sample holder; and an ion current detection electrode. Two jaws are positioned against one side of the seam, and two jaws are positioned on the opposite side of the seam. To the amino-amide is added an aldehyde or ketone to form the curable binder composition. One embodiment of the invention includes a core layer that includes electrically conductive material and at least one build-up wiring portion formed on an outer surface of the core layer. The computer system is configured to generate simulation sensor data using the simulation data. Lock surfaces between the male and female buckle components are provided inwardly of flexible segments of the lock arms and axially between the flexible portion of the lock arm and accessible ends of the lock arms depressed for unlatching the buckle.