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US 7,745,734 B2Granted
Ceramic multilayer substrate
AssigneeMurata Manufacturing Co., Ltd.
InventorKazuhiro Isebo
Life of this patent
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Abstract
A ceramic multilayer substrate includes a plurality of laminated ceramic layers and at least one conductor pattern and disposed on at least one of the ceramic layers. The ceramic multilayer substrate has a cavity in at least a first main surface. The ceramic multilayer substrate includes a deformation preventing pattern disposed on at least one of the ceramic layers having an opening forming the cavity. The deformation preventing pattern surrounds the entire perimeter of the opening and is made of the same material as the conductor pattern.
Claims13
A ceramic multilayer substrate, comprising:
- a plurality of ceramic layers laminated together;
- and
- at least one conductor pattern disposed on at least one of the plurality of ceramic layers;
- wherein
- the ceramic multilayer substrate has a cavity in at least a first main surface;
- at least one of the plurality of ceramic layers having an opening defining the cavity includes a deformation preventing pattern, the deformation preventing pattern being arranged to surround substantially an entire perimeter of the opening when viewed in a direction that is substantially perpendicular to the first main surface, the deformation preventing pattern being made of the same material as the conductor pattern;
- and
- a main surface of the deformation preventing pattern is arranged in a plane that is substantially parallel to a plane in which the first main surface of the ceramic multilayer substrate is arranged.
5 more elements
Dependencies are inferred from the claim text.