The invention relates to a micromechanical device and a corresponding production method. The micromechanical device comprises a base substrate (2) with a front face (V) and a rear face (R); and a cap substrate (2a), wherein at least one peripheral trench (3) with uneven lateral walls (3a) is formed in the front face (V) of the base substrate (2); the front face (V) of the base substrate (2) and the trench (3) are coated with at least one metal layer (4, 4a); the uneven lateral walls (3a) of the trench (3) are not covered by the metal (4, 4a) in a compliant manner such that the walls do not form an electrical current path in a direction running perpendicularly to the front face (V); and a closure means, in particular a sealing glass closure (5), is formed between the base substrate (2) and the cap substrate (2a) in the region of the trench (3).