Patent ID: 7999376
Filing Date: 2011-08-16
Classification: H01L

Abstract:
1. A semiconductor device comprising: a substrate formed with a predetermined wiring pattern on a principal plane; a first semiconductor chip having a first electrode for connecting to said wiring pattern on said substrate, said first semiconductor chip being mounted by flip chip packaging by directly connecting said first electrode to an applicable portion of said wiring pattern; and a second semiconductor chip, which is larger in both the longitudinal and transversal lengths than said first semiconductor chip, having a second electrode for connecting to said wiring pattern, said second semiconductor chip being mounted by flip chip packaging by directly connecting said second electrode an applicable portion of said wiring pattern, in which a total sum of the thickness of said second electrode and the thickness of the applicable portion of said wiring pattern connected to said second electrode is beyond a total sum of the thickness of said first semiconductor chip, the thickness of said first electrode and the thickness of the wiring pattern at said predetermined portion connected to said first electrode, said second semiconductor chip being located above said first semiconductor chip; wherein said substrate is made of an ultraviolet ray transmitting base material or has an opening portion in its part, and wherein a sealing structure of an ultraviolet cure insulating resin is formed on said substrate in the form of not covering the surface of said first semiconductor chip opposite to said substrate except that said sealing structure covers a peripheral portion around a connection portion between said first semiconductor chip and the applicable portion of said wiring pattern on said substrate.