Abstract:
A piezoelectric device that includes a sintered body in which a first conductor portion and a second conductor portion are disposed on both principal surfaces of a piezoelectric ceramic base body. The first conductor portion includes conductive films having a predetermined pattern. An insulating film is formed on the principal surface of the piezoelectric ceramic base body on which the conductive films are disposed such that portions of the conductive films are exposed therethrough. The insulating film has a malleability equal to or greater than that of the conductive films.
Abstract:
A stretchable mounting board that includes a stretchable substrate having a main surface, a stretchable wiring disposed on the main surface of the stretchable substrate, a mounting electrode section electrically connected to the stretchable wiring, solder electrically connected to the mounting electrode section and including bismuth and tin, and an electronic component electrically connected to the mounting electrode section with the solder interposed therebetween. The mounting electrode section has a first electrode layer on a side thereof facing the stretchable wiring and which includes bismuth and tin, and a second electrode layer on a side thereof facing the solder and which includes bismuth and tin. A concentration of the bismuth in the first electrode layer is lower than a concentration of the bismuth in the second electrode layer, and the concentration of the bismuth in the second electrode layer is constant along a thickness direction thereof.
Abstract:
A dielectric thin film element having a high humidity resistance is provided. A dielectric thin film element includes a capacitance section having a dielectric layer and a pair of electrode layers formed on the respective upper and lower surfaces of the dielectric layer. Furthermore, a protection layer is provided on the capacitance section, a pair of interconnect layers are drawn out to an upper surface of the protection layer, and external electrodes are formed to be electrically connected to the interconnect layers. Further, first surface metal layers cover a portion of the interconnect layers that extends along the inner surface of the openings and second surface metal layers are formed at end of the first surface metal layers.
Abstract:
A dielectric thin film element having a high humidity resistance is provided. A dielectric thin film element includes a capacitance section having a dielectric layer and a pair of electrode layers formed on the respective upper and lower surfaces of the dielectric layer 22. Furthermore, a protection layer is provided on the capacitance section, a pair of interconnect layers are drawn out to an upper surface of the protection layer, and external electrodes are formed to be electrically connected to the interconnect layers. Further, first surface metal layers cover a portion of the interconnect layers that extends along the inner surface of the openings and second surface metal layers are formed at end of the first surface metal layers.
Abstract:
A stretchable wiring board that includes: a stretchable substrate; a first wiring line on the stretchable substrate; an insulating layer overlapping a first part of the first wiring line in a plan view of the stretchable wiring board; and a second wiring line overlapping the first part of the first wiring line in the plan view with the insulating layer interposed therebetween. The insulating layer has at least one first notch, and in the plan view, the at least one first notch does not overlap the first wiring line and overlaps the second wiring line.
Abstract:
A stretchable mounting board that includes a mounting electrode section electrically connected to stretchable wiring, and solder electrically connected to the mounting electrode section. The mounting electrode section has a first electrode layer on a side thereof facing the stretchable wiring and which includes bismuth and tin, and a second electrode layer on a side thereof facing the solder and which includes bismuth and tin. A concentration of the bismuth in the first electrode layer is lower than a concentration of the bismuth in the second electrode layer, and the concentration of the bismuth in the second electrode layer is constant along a thickness direction thereof.
Abstract:
A stretchable wiring board that includes: a stretchable substrate; a first wiring line on the stretchable substrate; an insulating layer overlapping a first part of the first wiring line in a plan view of the stretchable wiring board; and a second wiring line overlapping the first part of the first wiring line in the plan view with the insulating layer interposed therebetween. The insulating layer has at least one first notch, and in the plan view, the at least one first notch does not overlap the first wiring line and overlaps the second wiring line.
Abstract:
A piezoelectric device that includes a ferroelectric layer having a first surface and a second opposing surface. Moreover, a first electrode is provided that covers part of the first surface and a second electrode is provided that is spaced apart from the first electrode and covers part of the first surface that is not covered by the first electrode. In addition, a third electrode is provided that covers part of the second surface so as to include a region of the second surface that faces the first electrode and a fourth electrode is provided that is spaced apart from the third electrode and covers part of the second surface that is not covered by the third electrode. Moreover, the fourth electrode faces at least part of the second electrode with the ferroelectric layer interposed therebetween. Each electrode can be formed of a sintered material.
Abstract:
A dielectric thin film element having a high humidity resistance is provided. A dielectric thin film element includes a capacitance section having a dielectric layer and a pair of electrode layers formed on the respective upper and lower surfaces of the dielectric layer 22. Furthermore, a protection layer is provided on the capacitance section, a pair of interconnect layers are drawn out to an upper surface of the protection layer, and external electrodes are formed to be electrically connected to the interconnect layers. Further, first surface metal layers cover a portion of the interconnect layers that extends along the inner surface of the openings and second surface metal layers are formed at end of the first surface metal layers.
Abstract:
A stretchable mounting board that includes a stretchable substrate having a main surface, a stretchable wiring disposed on the main surface of the stretchable substrate, a mounting electrode section electrically connected to the stretchable wiring, solder electrically connected to the mounting electrode section and including bismuth and tin, and an electronic component electrically connected to the mounting electrode section with the solder interposed therebetween. The mounting electrode section has a first electrode layer on a side thereof facing the stretchable wiring and which includes bismuth and tin, and a second electrode layer on a side thereof facing the solder and which includes bismuth and tin. A concentration of the bismuth in the first electrode layer is lower than a concentration of the bismuth in the second electrode layer.