Patent ID: 8263490
Filing Date: 2012-09-11
Classification: G01B,H01L,Y10T

Abstract:
1. A formation method of a metallic electrode of a semiconductor device, comprising: forming a bed electrode on a principle surface of a semiconductor substrate so that the bed electrode is electrically connected with a semiconductor element; forming a protective film covering the bed electrode, and then forming an opening in the protective film, so that a surface of the bed electrode is exposed in the opening; forming a metallic film covering the protective film and the surface of the bed electrode exposed in the opening; mounting the semiconductor substrate having the metallic film to an adsorption stage so that the semiconductor substrate is adsorbed and fixed on the adsorption stage; acquiring data about a surface shape of a surface part of the semiconductor substrate through causing a surface shape measurement device to measure the surface shape of the semiconductor substrate after the semiconductor substrate is adsorbed and fixed on the adsorption stage, wherein the surface part of the semiconductor substrate is a part of the metallic film, the part covering the protective film, wherein the surface shape measurement device is located on a side of the principle surface of the semiconductor substrate; deforming the semiconductor substrate based on the acquired data about the surface shape through causing a deformation device to apply displacement to the fixed semiconductor substrate via the adsorption stage so that a distance between a cutting plane and the surface part of the semiconductor substrate falls within a predetermined range, wherein the cutting plane is set so that the adsorption stage before being deformed is parallel to the cutting plane; determining whether the distance between the cutting plane and the surface part of the deformed semiconductor substrate is in the predetermined range, through letting the surface shape measurement device to measure the surface shape of the surface part of the deformed semiconductor substrate; forming a metallic electrode through patterning the metallic film when it is determined that the distance between the cutting plane and the surface part of the deformed semiconductor substrate is in the predetermined range, wherein the pattering the metallic film includes conducting a cutting work along the cutting plane, with the deformed semiconductor substrate being adsorbed and fixed to the adsorption stage; using a plurality of actuators as the deformation device, respective displacements of the plurality of actuators being controllable; and arranging the plurality of actuators so that