Patent ID: 8089163
Filing Date: 2012-01-03
Classification: H01L

Abstract:
1. A semiconductor device comprising: an active layer provided in one surface of a semiconductor substrate; a projection electrode of a metal electrically connected to the active layer, the projection electrode having a flat top surface and a generally uniform width throughout a length direction thereof from the active layer to a distal end of the projection electrode, and extending generally perpendicularly to the semiconductor substrate; a protective film provided over the active layer with at least a proximal half portion of the projection electrode being embedded therein and with a distal portion of the projection electrode being exposed therefrom, the protective film comprising an oxide with an elastic modulus of at least 1.5 GPa; a device electrode pad, the projection electrode and the active layer being electrically connected via the device electrode pad; and a seed layer provided only between the device electrode pad and the projection electrode, wherein the semiconductor device is a completed device and is configured to be connected by flip-chip connection.