Electronic device

An electronic device comprising:

• a first chip having an approximately rectangular parallelepiped shape and a first terminal electrode at an end face thereof;
• a second chip having an approximately rectangular parallelepiped shape and a second terminal electrode at an end face thereof, the second chip being stacked on the first chip;
• an external terminal electrically connected to the first terminal electrode and the second terminal electrode, and the external terminal comprising:
• a coupler;
• a mounting connector connected to a lower end of the coupler;
• a electrode connector connected to the first terminal electrode and the second terminal electrode, the coupler projecting from a lower side of the electrode connector, the electrode connector comprising:
• a first component connected to the coupler and facing the first terminal electrode;
• and
• a second component extending upward from the first component and facing the first terminal electrode and the second terminal electrode;
• and
• a support supporting the first chip from an underside and being connected to a lower end of the electrode connector, the support extending approximately vertical to the electrode connector toward a first chip side,
• wherein a width W2 of the second component in a direction parallel to the end face and a lower face of the first chip is shorter than a width W1 of the first component in the direction parallel to the end face and the lower face of the first chip,
• the width W2 of the second component is shorter than widths W3 and W4 of the first chip and the second chip, respectively, and
• a length from an end of the support to the electrode connector is longer than an equivalent dimension of a curvature radius of “R” shape formed on a corner of the first chip.

An electronic device comprising:

• a first chip having an approximately rectangular parallelepiped shape and a first terminal electrode at an end face thereof;
• a second chip having an approximately rectangular parallelepiped shape and a second terminal electrode at an end face thereof, the second chip being stacked on the first chip;
• an external terminal electrically connected to the first terminal electrode and the second terminal electrode, and the external terminal comprising:
• a coupler;
• a mounting connector connected to a lower end of the coupler;
• and
• a electrode connector connected to the first terminal electrode and the second terminal electrode, the coupler projecting from a lower side of the electrode connector, the electrode connector comprising:
• a first component connected to the coupler and facing the first terminal electrode;
• a second component extending upward from the first component and facing the first terminal electrode and the second terminal electrode,
• wherein a width W2 of the second component in a direction parallel to the end face and a lower face of the first chip is shorter than a width W1 of the first component in the direction parallel to the end face and the lower face of the first chip,
• the width W2 of the second component is shorter than widths W3 and W4 of the first chip and the second chip, respectively,
• the width W2 is varied according to a position of the second component in a height direction, and
• the width W2 at a corner part of the second component in the height direction is shorter than an equivalent dimension at the upper end and a lower end of the second component in the height direction.

An electronic device comprising:

• a first chip having an approximately rectangular parallelepiped shape and a first terminal electrode at an end face thereof;
• a second chip having an approximately rectangular parallelepiped shape and a second terminal electrode at an end face thereof, the second chip being stacked on the first chip;
• and
• an external terminal electrically connected to the first terminal electrode and the second terminal electrode, the external terminal comprising:
• a coupler;
• a mounting connector connected to a lower end of the coupler and extending in a direction approximately vertical to the coupler;
• and
• an electrode connector connected to the first terminal electrode and the second terminal electrode;
• the coupler projecting from a lower side of the electrode connector;
• the lower side of the electrode connector being positioned at a same height as a lower end of the first terminal electrode, the electrode connector comprising:
• a first component connected to the coupler and facing the first terminal electrode;
• a second component extending upward from the first component and facing the first terminal electrode and the second terminal electrode,
• wherein an upper end of the second component is an upper end of the external terminal,
• a maximum width W2 of the second component in a direction parallel to the end face and a lower face of the first chip is shorter than a maximum width of the first component in a direction parallel to the end face and the lower face of the first chip,
• the second component extends from the center of the first component in a direction parallel to the end face and a lower face of the first chip, and
• the maximum width W2 of the second component is shorter than maximum widths W3 and W4 of the first chip and the second chip, respectively.