Monoatomic and monocrystalline layer of large size, in diamond type carbon, and method for the manufacture of this layer. The coordinating units distribute the order to production units. Shared memory provides for data to be written to a buffer at one rate, and read from a buffer at a different rate, or vice versa. The line-shaped device substrates divided from the second substrate are arrayed on a third substrate such as to be enlargedly spaced from each other. A cable clamp extends from an end of the second attachment arm opposite the strip portion or an end of the strip portion opposite the first attachment arm.