Patent ID: 9583722
Date: 2017-02-28
CPC Classifications: H01L

Claim:
1. A preparation method of an organic thin film transistor, comprising: forming a source-drain metal layer including a source electrode and a drain electrode, and forming an organic semiconductor active layer, wherein the organic semiconductor active layer is in contact with the source electrode and the drain electrode; forming an organic insulating thin film on a substrate where the source-drain metal layer including the source electrode and the drain electrode and the organic semiconductor active layer have been formed; thinning the organic insulating thin film by an etching thinning process and curing the thinned organic insulating thin film by a curing process, or curing the organic insulating thin film by a curing process and thinning the cured organic insulating thin film by an etching thinning process, to form an organic insulating layer; wherein the preparation method further comprises forming a gate electrode.