Patent ID: 6204563
Filing Date: 2001-03-20
Classification: H01L

Abstract:
A semiconductor device for mounting on an external substrate having a given Young's modulus, said semiconductor device comprising:a semiconductor chip having a main surface, said semiconductor chip including a plurality of bump electrodes formed on the main surface;an elastic internal substrate having a first surface and a second surface opposite to the first surface, said internal substrate including a conductive pattern electrically connected to the bump electrodes and formed on the first surface, and a plurality of external electrodes formed on the second surface thereof, the external electrodes being electrically connected to the conductive pattern and adapted for mounting on the external substrate; andan elastic liquid resin covering the main surface of said semiconductor chip, the first surface of said internal substrate and the bump electrodes,wherein said internal substrate has a Young's modulus of about 8000 to 15000 kg/mm.sup.2 which is larger than the Young's modulus of the external substrate.