A semiconductor device includes a lateral end surface and a connection electrode for external electrical connection. The ejection mechanism section includes: a sliding member which is in an L-shape in cross section and affects the slot by sliding in a direction in which a ridge of the L shape extends; and an operation member which transmits a sliding operation made thereon to the sliding member in response to the sliding operation, thereby causing the sliding member to slide. Known duplex waves are used with transmitted waves for obtaining seismic images from much wider angles, ranging from horizontal to vertical. The update is performed by a cluster leader in the form of a transactionally consistent IO update to the cluster bootstrap record on disk and a distributed cache update across the cluster. Also described is the related device. In one aspect, the isolator is designed for in-line mounting with a support strut.