Patent ID: 6531770
Filing Date: 2003-03-11
Classification: H01L,H05K,Y02P

Abstract:
An electronic part unit mounted on a printed circuit board, comprising:an electronic part body which has a carrier substrate containing first and second surfaces opposed to each other, a semiconductor chip bonded to the first surface of the carrier substrate, and a plurality of external connection electrodes formed on the second surface of the carrier substrate and electrically connected to said semiconductor chip and in which said semiconductor chip is encapsulated such that said external connection electrodes remain exposed in a bottom surface of said electronic part body serving as a mounting surface opposed to said printed circuit board; and a cover member covering said electronic part body except for the mounting surface; said cover member having a shape defining a space which receives an adhesive around a side surface of the electronic part body and surrounding said external connections electrodes to bond said electronic part body and said cover member to said printed circuit board, wherein said cover member increases the bonding strength between said electronic part body and said printed circuit board.