According to one embodiment, an information processing apparatus includes a main body, a display portion configured to freely open and close with respect to the main body, and a notification module. A user device 14 communicates with the network. The second portion presses the male member toward the first portion to engage the first engaging portion with the second engaging portion when the male member is inserted between the first and second portions. The metal silicide layer achieves favorable contact with the source and the drain, and, since it has a lower resistivity than silicon, the parasitic resistance between the source and drain regions can be considerably lowered. Examples of surface treatment include sputtering a thin film with varied densities or thickness, radiating one or multi-layer thin films by a laser beam, etc.