COMPOSITE SUBSTRATE AND RIGID SUBSTRATE

摘要

A composite substrate has a rigid substrate that includes: a core layer, a first laminated layer on a first surface of the core layer, and a second laminated layer on a second surface of the core layer, the rigid substrate having a cutout in the core layer and the second laminated layer on one side face of the rigid substrate; and a flexible substrate inserted into the cutout in the rigid substrate on the one side face and laterally and externally protruding from the one side face of the rigid substrate, wherein the rigid substrate has opposing walls each constituted of the second laminated layer and the core layer erected on the first laminated layer to define inner side faces, respectively, of the cutout so as to accommodate the flexible substrate in a direction perpendicular to a direction in which the side face of the rigid substrate extends.

主权项

1. A composite substrate, comprising:
a rigid substrate including a core layer, a first laminated layer on a first surface of the core layer, and a second laminated layer on a second surface of the core layer that is opposite to the first surface, said first laminated layer having at least one layer each of an insulating layer and a wiring layer laminated together on the first surface, said second laminated layer having at least one layer each of an insulating layer and a wiring layer laminated together on the second surface, said rigid substrate having a cutout in the core layer and the second laminated layer on one side face of the rigid substrate, exposing partially a surface of the first laminated layer as a bottom surface of said cutout, said partially exposed surface of the first laminated layer having connection terminals formed thereon; and a flexible substrate inserted into said cutout in the rigid substrate on said one side face and laterally and externally protruding from said one side face of the rigid substrate, the flexible substrate being electrically connected to the connection terminals, wherein said rigid substrate has opposing walls each constituted of the second laminated layer and the core layer erected on the first laminated layer to define inner side faces, respectively, of the cutout so as to accommodate the flexible substrate in a direction perpendicular to a direction in which said side face of the rigid substrate extends.