Patent ID: 7883982
Filing Date: 2011-02-08
Classification: H01L

Abstract:
1. A method of manufacturing a semiconductor device comprising: forming a plurality of first resistive elements on a semiconductor substrate; forming an interlayer insulation film on the plurality of first resistive elements; forming a plurality of contact vias, which are connected to the plurality of first resistive elements, in the interlayer insulation film; and forming a plurality of second resistive elements, which are connected to the plurality of contact vias, and a dummy pattern, which is electrically isolated from the plurality of second resistive elements and which is formed beside one of the plurality of second resistive elements, on the interlayer insulation film, the forming of the plurality of second resistive elements and the dummy pattern comprising: forming a conductor layer on the interlayer insulation film, forming a mask layer on the conductor layer, and patterning the conductor layer to form the plurality of second resistive elements and the dummy pattern by using the mask layer as a mask and by setting an aspect ratio to between 3 and 5.2, wherein the aspect ratio is defined as (A+B)/C; and where the A is a thickness of the conductor layer, the B is a thickness of the mask layer, and the C is a distance between the one of the plurality of second resistive elements and the dummy pattern.