Board unit, memory system, and electronic device

Abstract

A board unit of an embodiment includes a board, an electronic component, and a connection portion. The electronic component is on the board. The connection portion connects the board and the electronic component. The board includes a first surface, a hole, and a first electroconductive portion. The first surface faces the electronic component. The hole is on the first surface. The first electroconductive portion is on at least one of the first surface and an inner surface of the hole. The electronic component has a first terminal. The first terminal has an extension portion. The extension portion extends in a second direction intersecting a first direction. The second direction is a thickness direction of the board. The extension portion has at least a part inserted into the hole. The connection portion has electroconductivity. The connection portion is between the first electroconductive portion and the extension portion.

Dependencies are inferred from the claim text.