Integrated electronic component

FIG. 4.)

[0032]With reference to FIG. 4, in an integrated electronic component according to a second preferred embodiment, the substrate-facing segments 21c of the metal case 20 have notches 21f preferably having a substantially convex circular arc shape facing downward at the positions opposing the corners 10a of the top surface of the ceramic substrate 10. Other elements are identical to those in the above-described first preferred embodiment. The same reference numerals are used in FIG. 4 and FIGS. 1 to 3 to identify the same elements and blocks, and duplicated descriptions are omitted.

[0033]Herein, a radius of curvature R of the notches 21f′ is preferably about 0.05 mm to about 0.2 mm, for example, about 0.1 mm. If the radius of curvature R is smaller than about 0.05 mm, the substantially circular arc portion of the notches 21f′ easily comes into contact with the corner 10a even if the deformation of the substrate-facing segments 21c is small. This reduces the desirable effect. On t