Semiconductor device using bumps, method for fabricating same, and method for forming bumps

摘要

A semiconductor device able to maintain a bonding state between a bump and an electrode and having high reliability even under thermal stress, wherein a sealing resin is interposed to bond the electrodes and bumps between a wiring board formed with a plurality of electrodes and an IC chip formed with a plurality of bumps, the bumps being formed under the condition that the following formula is satisfied.where PHIA represents the top diameter of a bump bonded with an electrode, H the height of a bump projecting from the IC chip and bonded with an electrode, and F the linear thermal expansion coefficient of the sealing resin.