| 摘要 |
To provide a ceramic multilayer substrate in which cracks resulting from the difference in shrinkage caused by heat or thermal shrinkage caused by firing can be prevented effectively between the end surface electrode and the substrate main body. A ceramic multilayer substrate 20 includes: (a) substrate main body 21 including alternately stacked first and second ceramic layers 22a to 22d and 24a to 24e, and having first recesses formed in end surfaces of at least two adjacent ceramic layers so as to communicate with each other; and (b) an electroconductive end surface electrode 28 disposed in the first recesses in the substrate main body 21. The first and the second ceramic layer each have a sintering start temperature and a sintering end temperature, and at least one of the sintering start temperature and the sintering end temperature is different between the first and the second ceramic layer. The substrate main body 21 has a second recess in at least one of the ceramic layers having the first recesses so as to communicate with the first recess and lie between other ceramic layers. In the second recess, an electroconductive protrusion connected to the end surface electrode 28 is disposed.
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