Patent ID: 9711725
Date: 2017-07-18
CPC Classifications: H01L

Claim:
1. A method for producing an organic semiconductor element having a semiconductor layer made of an organic semiconductor material; wherein an optical system for irradiating a laser beam with a wavelength of at least 4 μm and a donor substrate prepared by forming only an organic semiconductor film made of the organic semiconductor material on a surface of a supporting member having a laser beam transmittance of at least 50% are used; and the donor substrate and a substrate to be treated serving as a semiconductor element are positioned so that the organic semiconductor film and the semiconductor layer formation surface are opposite one another; the laser beam is irradiated from the supporting member side by the optical system; the laser beam is scanned while modulating in accordance with the semiconductor layer to be formed; and the organic semiconductor film is transferred to the substrate to be treated so as to form the semiconductor layer; and relative positions of the optical system and the donor substrate are adjusted so that an energy density of the laser beam at an interface between the supporting member of the donor substrate and the organic semiconductor film is from 0.2 to 0.7 times that at the focal position of the laser beam.