Patent ID: 9681534
Date: 2017-06-13
CPC Classifications: H05K

Claim:
1. A ceramic multilayer substrate comprising: a ceramic laminate including first and second primary surfaces opposed to each other and ceramic layers laminated to each other and a surface electrode located on a portion of the first primary surface of the ceramic laminate: a cover ceramic layer arranged to cover a peripheral portion of the surface electrode wherein a recess portion is provided in a region of the surface electrode spaced inward from a peripheral end portion of the surface electrode; the recess portion is substantially V shaped; the surface electrode includes a first surface adjacent to the first primary surface of the ceramic laminate and a second surface opposed to the first surface and spaced away from the first primary surface of the ceramic laminate; a height between the second surface of the surface electrode in the recess portion and the second primary surface of the ceramic laminate is less than a height between the second surface of the surface electrode at the peripheral end portion and the second primary surface of the ceramic laminate; and a height between the first surface of the surface electrode in the recess portion and the second primary surface of the ceramic laminate is less than a height between the first surface of the surface electrode at the peripheral end portion and the second primary surface of the ceramic laminate, the height between the first surface of the surface electrode at the peripheral end portion and the second primary surface of the ceramic laminate is less than or equal to a height between the first primary surface and the second primary surface of the ceramic laminate and wherein the cover ceramic layer is disposed in the recess portion of the surface electrode and the cover ceramic layer includes a V-shaped groove and an outermost surface wherein the outermost surface of the cover ceramic layer is flush with the first primary surface of the ceramic laminate.