BUMP STRUCTURES, ELECTRICAL CONNECTION STRUCTURES, AND METHODS OF FORMING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide bump structures.SOLUTION: Provided are: a body portion separate from a pad disposed on a substrate; and at least one first extension extending from a side of the body portion onto the pad. Also provided is at least one second extension extending from another side of the body portion. The width of the first extension is smaller than the width of the body portion.