| 摘要 |
PROBLEM TO BE SOLVED: To reduce a cost of manufacture and to improve connection reliability in an electronic apparatus in which a first region and a second region are separately formed.SOLUTION: The electronic apparatus includes: a first region (14) in which a main circuit (18) that implements a predetermined function is formed; and a second region (16) for forming an additional circuit (42) that adds a function to the predetermined function. These regions are provided on a common multilayer substrate (12) in which conductors (12b) are disposed while being multilayered, and provided separately within a plane orthogonal to a lamination direction of the conductors. The first region includes first wiring (28) for electrically connecting the main circuit with the additional circuit, and a connection part (30) which is electrically connected with the first wiring and disposed over all the layers in which the conductors are provided, in an end neighboring to the second region in order to connect the first wiring even with the conductor in any layer. The main circuit is electrically connectable with the additional circuit via the first wiring and the connection part. |
