| 摘要 |
A method of fabricating a semiconductor device includes the steps of forming an insulation film on a compound semiconductor layer, forming an opening in the insulation film so as to expose a part of the compound semiconductor layer, forming a gate electrode of a refractory metal compound on the insulation film such that the gate electrode contacts with the compound semiconductor layer at the contact hole, and removing the insulation film by a wet etching process, wherein the wet etching process is conducted by an etchant to which both of the gate electrode and the compound semiconductor layer show a resistance.
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