Patent ID: 7655505

Claim:
A manufacturing method of a semiconductor device, comprising: a step of providing a transparent member above a main surface of a semiconductor substrate where a plurality of semiconductor elements are formed; a first dividing step of dividing the transparent member corresponding to a designated area of the semiconductor element; a second dividing step of dividing the transparent member corresponding to an external configuration of the semiconductor element; and a dividing step of dividing the semiconductor substrate into the semiconductor elements corresponding to a dividing position of the transparent member, wherein the second dividing step of dividing the transparent member and the dividing step of dividing the semiconductor substrate are continuously implemented; a same dry type etching method is used in the second dividing step of dividing the transparent member and in the dividing step of dividing the semiconductor substrate; the same chemical is used for the etching of the transparent member and the etching of the semiconductor substrate; and pieces of the transparent member and the semiconductor substrate are formed, by controlling an etching time so that an etching amount is controlled.