Electronic circuit unit

• Main Author: HIROSE, YOSHITAKA
• Format: Patent
• Language: English
• Published: 21.06.2004
• Edition: 7
• Subjects: BASIC ELECTRIC ELEMENTS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; PRINTED CIRCUITS; SEMICONDUCTOR DEVICES

An electronic circuit unit capable of realizing decrease of size in a horizontal direction and providing good electrical performance is disclosed in the present invention. The electronic circuit unit is featured with having the followings: the first and the second insulating boards 1, 6 formed with the wiring patterns 2, 7 on the surfaces; and passive elements 3 and 8 formed in a thick film under the state in which the elements 3, 8 are connected to the patterns 2, 7 on the surfaces of the first and the second boards 1, 6. In this circuit unit, the first and the second boards 1, 6 are disposed in the state in which the boards 1, 6 are vertically opposed, and the wiring patterns 2, 7 provided on the first and the second boards 1, 6 are connected via a bump 11 made of metal provided between the first and second boards 1 and 6. Thus, the first and the second boards 1, 6 can be disposed vertically so as to reduce the lateral direction size as compared with prior art. Therefore, the electronic circuit unit capable of realizing lateral miniaturization is provided.