Chip parts

A chip part, comprising:

• a substrate, having a first main surface and a second main surface opposite to the first main surface;
• a first external electrode and a second external electrode, disposed on the first main surface of the substrate and separated from each other;
• a capacitor portion, disposed on the first main surface of the substrate when viewed from a plan view and along a normal direction of the first main surface, wherein
• the capacitor portion includes a plurality of wall portions having a lengthwise direction and separated from each other by a trench formed on the first main surface, and
• the capacitor portion is disposed at least between the first external electrode and the second external electrode;
• a lower electrode, including:
• a first body portion, disposed along top and side surfaces of the plurality of wall portions;
• and
• a first peripheral portion, integrally drawn out around the capacitor portion from the first body portion;
• a capacitive film, including:
• a second body portion, disposed on the lower electrode, along the top and side surfaces of the plurality of wall portions and within the capacitor portion;
• and
• a second peripheral portion, integrally drawn out from the second body portion to the first peripheral portion;
• an upper electrode, disposed on the capacitive film;
• a first electrode film, electrically connecting the first external electrode to the lower electrode;
• and
• a second electrode film, electrically connecting the second external electrode to the upper electrode, wherein
• the first peripheral portion and the second peripheral portion are drawn out of an edge of the upper electrode in the plan view, and have a common edge located further out of the edge of the upper electrode,
• the plurality of wall portions are formed of a plurality of pillar units,
• each of the plurality of pillar units includes a central portion and three protruding portions extending from the central portion to three different directions in the plan view, and
• the plurality of wall portions are formed by connecting the three protruding portions of adjacent pillar units.