Abstract:
[OBJECTIVE] Provided is a semiconductor device using an oxide semiconductor suitable for a power device. In other words, provided is a semiconductor device through which a heavy current can flow and that has a high reliability. [SOLUTION] The semiconductor device comprises an oxide-stacked layer where a first oxide layer, a second oxide semiconductor layer, a second oxide semiconductor layer, and a second oxide layer are formed. An electrode, functioning as a source electrode, overlaps with a region with an element that provides conductivity to the first oxide semiconductor layer. Also, an electrode functioning as a drain electrode does not overlap with the region.
Abstract:
본발명은고신뢰성·고속동작에적합한반도체장치를제공한다. 제 1 도전체와, 제 2 도전체와, 제 1 절연체와, 제 2 절연체와, 제 3 절연체와, 반도체와, 전자포획층을갖고, 반도체는채널형성영역을갖고, 전자포획층은제 2 절연체를개재하여채널형성영역과서로중첩되는영역을갖고, 제 1 도전체는제 1 절연체를개재하여채널형성영역과서로중첩되는영역을갖고, 제 2 도전체는제 3 절연체를개재하여전자포획층과서로중첩되는영역을갖고, 제 2 도전체는채널형성영역과중첩되는영역을갖지않는반도체장치이다.
Abstract:
PURPOSE: A method for manufacturing a semiconductor layer, a method for manufacturing a semiconductor device, and a method for manufacturing a photoelectric conversion device are provided to reduce resistivity of an amorphous semiconductor with an impurity element by applying a discharge start voltage which is pulse-modulated to an electrode. CONSTITUTION: Mixed gas is inputted to a reaction chamber as source gas. The mixed gas includes impurity elements and deposit gas including silicon. Pressure of the reaction chamber and an interval of an electrode are set to make an initial discharge start voltage.