| 摘要 |
PROBLEM TO BE SOLVED: To prevent the fault of equipment caused by electric short-circuiting caused by the contact of a metal shield plate and the top surface of an electronic component. SOLUTION: In the packaged electronic component for a laminated piezoelectric filter F or the like, with which auxiliary terminal parts 21a and 21b are exposed and formed on a top surface (f), since an insulating film 36 is stuck on the top surface (f) so that the auxiliary terminal parts 21a and 21b can be covered at least, the auxiliary terminal parts 21a and 21b are covered with the insulating film 36, insulating processing is applied and even when a metal shield plate 4 and the top surface (f) of the laminated piezoelectric filter F are contacted, the auxiliary terminal parts 21a and 21b are not electrically short-circuited so that the fault of equipment or the like can be prevented.
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