Patent ID: 6998695
Filing Date: 2006-02-14
Classification: H01L

Abstract:
1. A method of manufacturing a semiconductor device comprising the steps of: (a) forming a mushroom gate on a semiconductor substrate, the mushroom gate traversing an active region of the semiconductor substrate and having a fine gate and an over gate formed on the fine gate and constituting an electrode portion having a broadened size along a current direction; (b) coating a first organic material film on the semiconductor substrate, the first organic material film covering at least the fine gate and a lower surface of the over gate of the mushroom gate; (c) patterning the first organic material film and leaving the first organic material film only near at the mushroom gate; (d) coating a second organic material film having chemical characteristics different from chemical characteristics of the first organic material film, the second organic material film covering the left first organic material film; (e) forming an opening through the second organic material film to expose the first organic material film; and (f) dissolving and removing the first organic material film via the openings to form a hollow space in the second organic material film.