摘要:
A manufacturing method of a semiconductor device of the present invention includes the steps of forming a first insulating film over a substrate, forming a semiconductor film over the first insulating film, oxidizing or nitriding the semiconductor film by conducting a plasma treatment to the semiconductor film under a condition of an electron density of 1×1011 cm−3 or more and 1×1013 cm−3 or less and an electron temperature of 0.5 eV or more and 1.5 eV or less, using a high frequency wave, forming a second insulating film to cover the semiconductor film, forming a gate electrode over the second insulating film, forming a third insulating film to cover the gate electrode, and forming a conductive film over the third insulating film.
摘要翻译:本发明的半导体器件的制造方法包括以下步骤:在衬底上形成第一绝缘膜,在第一绝缘膜上形成半导体膜,通过对半导体膜进行等离子体处理来对半导体膜进行氧化或氮化 使用高频波,电子密度为1×10 11 cm -3以上且1×10 13 cm -3以下且电子温度为0.5eV以上1.5eV以下的条件,形成第2绝缘膜 覆盖半导体膜,在第二绝缘膜上形成栅电极,形成第三绝缘膜以覆盖栅电极,并在第三绝缘膜上形成导电膜。
摘要:
A method for manufacturing a semiconductor device having steps of forming an amorphous semiconductor on a substrate having an insulating surface; patterning the amorphous semiconductor to form plural first island-like semiconductors; irradiating a linearly condensed laser beam on the plural first island-like semiconductors while relatively scanning the substrate, thus crystallizing the plural first island-like semiconductors; patterning the plural first island-like semiconductors that have been crystallized to form plural second island-like semiconductors; forming plural transistors using the plural second island-like semiconductors; and forming a unit circuit using a predetermined number of the transistors, where the second island-like semiconductors used for the predetermined number of the transistors are formed from the first island-like semiconductors that are different from each other.
摘要:
The present invention provides a semiconductor device capable of being mass-produced and a manufacturing method of the semiconductor device. The present invention also provides a semiconductor device using an extreme thin integrated circuit and a manufacturing method of the semiconductor device. Further, the present invention provides a low power consumption semiconductor device and a manufacturing method of the semiconductor device. According to one aspect of the present invention, a semiconductor device that has a semiconductor nonvolatile memory element transistor over an insulating surface in which a floating gate electrode of the memory transistor is formed by a plurality of conductive particles or semiconductor particles is provided.
摘要:
A method of efficiently forming a circuit using a thin film transistor with a semiconductor layer in which preferable crystallinity is obtained is provided. A location on which stress concentrates according to crystallization of a semiconductor layer formed on a substrate having unevenness corresponds to the edges and their vicinities of the unevenness provided on the substrate, that is, the boundary between a concave portion and a convex portion and its vicinities. Thus, the location in which stress concentration is caused can be specified and controlled according to the shape of a slit-shaped base layer. In addition, an island-like semiconductor layer (1305) which becomes the active layer of a TFT is formed on the concave portion or the convex portion of the substrate having the unevenness. At this time, at least a portion which becomes the channel formation region of the TFT is formed without crossing the boundary between the concave portion and the convex portion. Such TFTs are used in parallel to construct a TFT having a large channel width so that fluctuation in electrical characteristics is averaged.
摘要:
A semiconductor device and a process for production thereof, said semiconductor device having a new electrode structure which has a low resistivity and withstands heat treatment at 400° C. and above. Heat treatment at a high temperature (400-700° C.) is possible because the wiring is made of Ta film or Ta-based film having high heat resistance. This heat treatment permits the gettering of metal element in crystalline silicon film. Since this heat treatment is lower than the temperature which the gate wiring (0.1-5 μm wide) withstands and the gate wiring is protected with a protective film, the gate wiring retains its low resistance.
摘要:
A method for manufacturing a semiconductor device having steps of forming an amorphous semiconductor on a substrate having an insulating surface; patterning the amorphous semiconductor to form plural first island-like semiconductors; irradiating a linearly condensed laser beam on the plural first island-like semiconductors while relatively scanning the substrate, thus crystallizing the plural first island-like semiconductors; patterning the plural first island-like semiconductors that have been crystallized to form plural second island-like semiconductors; forming plural transistors using the plural second island-like semiconductors; and forming a unit circuit using a predetermined number of the transistors, where the second island-like semiconductors used for the predetermined number of the transistors are formed from the first island-like semiconductors that are different from each other.
摘要:
The present invention provides a semiconductor device capable of being mass-produced and a manufacturing method of the semiconductor device. The present invention also provides a semiconductor device using an extreme thin integrated circuit and a manufacturing method of the semiconductor device. Further, the present invention provides a low power consumption semiconductor device and a manufacturing method of the semiconductor device. According to one aspect of the present invention, a semiconductor device that has a semiconductor nonvolatile memory element transistor over an insulating surface in which a floating gate electrode of the memory transistor is formed by a plurality of conductive particles or semiconductor particles is provided.
摘要:
To provide devices relating to a manufacturing method for a semiconductor device using a laser crystallization method, which is capable of reducing a cost involved in a design change, preventing a grain boundary from developing in a channel formation region of a TFT, and preventing a remarkable reduction in mobility of the TFT, a decrease in an ON current, and an increase in an OFF current due to the grain boundary and to a semiconductor device formed by using the manufacturing method. In a semiconductor device according to the present invention, among a plurality of TFTs formed on a base film, some TFTs are electrically connected to form logic elements. The plurality of logic elements are used to form a circuit. The base film has a plurality of projective portions having a rectangular or stripe shape. Island-like semiconductor films included in each of the plurality of TFTs are formed between the plurality of projective portions and also, are crystallized by a laser light scanned in a longitudinal direction of the projective portions.
摘要:
It is a problem to provide a semiconductor device production system using a laser crystallization method capable of preventing grain boundaries from forming in a TFT channel region and further preventing conspicuous lowering in TFT mobility due to grain boundaries, on-current decrease or off-current increase. An insulation film is formed on a substrate, and a semiconductor film is formed on the insulation film. Due to this, preferentially formed is a region in the semiconductor film to be concentratedly applied by stress during crystallization with laser light. Specifically, a stripe-formed or rectangular concavo-convex is formed on the semiconductor film. Continuous-oscillation laser light is irradiated along the striped concavo-convex or along a direction of a longer or shorter axis of rectangle.
摘要:
A method for manufacturing a semiconductor device having steps of forming an amorphous semiconductor on a substrate having an insulating surface; patterning the amorphous semiconductor to form plural first island-like semiconductors; irradiating a linearly condensed laser beam on the plural first island-like semiconductors while relatively scanning the substrate, thus crystallizing the plural first island-like semiconductors; patterning the plural first island-like semiconductors that have been crystallized to form plural second island-like semiconductors; forming plural transistors using the plural second island-like semiconductors; and forming a unit circuit using a predetermined number of the transistors, where the second island-like semiconductors used for the predetermined number of the transistors are formed from the first island-like semiconductors that are different from each other.