Patent ID: 9741495
Date: 2017-08-22
CPC Classifications: B32B,H01G,Y10T

Claim:
1. A solid electrolytic capacitor comprising: an insulating substrate having an upper surface and a lower surface; a capacitor element having a positive electrode member, a negative electrode member, and a dielectric member, and disposed on the upper surface of the insulating substrate; a positive electrode lead-out structure having a positive electrode terminal formed on the lower surface of the insulating substrate, and electrically connected to the positive electrode member of the capacitor element; and a negative electrode lead-out structure having a negative electrode terminal formed on the lower surface of the insulating substrate, and electrically connected to the negative electrode member of the capacitor element, wherein the positive electrode lead-out structure further comprises: a first positive electrode connection member having a main surface and a back surface, of which the back surface is in contact with the upper surface of the insulating substrate, a second positive electrode connection member configured to electrically connect the first positive electrode connection member to the positive electrode terminal, a pillow member having a top surface and a bottom surface, and configured to electrically connect the positive electrode member of the capacitor element to the first positive electrode connection member, and a positive electrode bonding member configured to bond the pillow member to the first positive electrode connection member, wherein the first positive electrode connection member has a recessed portion formed by locally recessing the main surface, or a through hole penetrating from the main surface to the back surface, the recessed portion or the through hole overlaps an edge of the bottom surface of the pillow member so as to have a first end of the recessed portion or the through hole disposed outside the edge and a second end of the recessed portion or the through hole disposed inside the edge, and the positive electrode bonding member partially enters the recessed portion or the through hole, and is in contact with an edge of the bottom surface of the pillow member at a position above the recessed portion or the through hole, or at a nearby position.