Abstract:
In a semiconductor device having a heat spreader attached thereto, a semiconductor chip is mounted on a multi-layer wiring substrate via an electrode pad and an insulating resin. The sides of the semiconductor chip on the substrate are sealed with the insulating resin, and a copper paste film contacted to the exposed surface of the semiconductor chips are formed. The copper paste film functions as a heat spreader.
Abstract:
A semiconductor device includes a passivation film (19) having opening portions through which an electrode pads (18) formed on a semiconductor chip (21) are exposed, projecting electrode portions (20) whose one end faces are connected to the electrode pads (18) through the opening portions, post electrode portions (16A) through which the other end faces of the projecting electrode portions (20) and the metal bumps (26) are connected to each other, and an insulating resin layer (13) having elasticity which covers the post electrode portions (16A), the projecting electrode portions (20) and the passivation film (19) with the exception of the end faces of the post electrode portions (16A).
Abstract:
There are provided a flip-chip-type semiconductor device and a manufacturing method thereof that can sufficiently reduce stress generated in the connecting portions between a semiconductor chip and a mounting substrate, and can achieve excellent mounting reliability. A pad electrode is selectively formed on the surface of a semiconductor chip, conductive post including at least two conductive layers, which have different materials each other, on the pad electrode, and bump electrode is formed on the conductive post. The bump electrode is connected to a mounting substrate, and the pad electrode is electrically connected to the mounting substrate. The conductive post is formed by forming first conductive layer and second conductive layer on the first conductive layer selectively on a base material (temporary substrate), electrically connecting the first and second conductive layers to the pad electrode, and thereafter separating the temporary substrate from the first conductive layer.