摘要:
A dry cleaning device, wherein a pad is moved towards a surface of a wafer, cleaning gas is injected into a space formed between the pad and the wafer to generate a high-speed gas flow along the surface of the wafer whereby particles left on the surface of the wafer are removed with the high-speed gas flow. In addition, in order to assist this physical cleaning action, either a chemical or an electrical cleaning method such as a plasma additionally may be used.
摘要:
A method of dry cleaning surfaces of a semiconductor wafer includes the steps of placing a processed wafer in a vacuum environment and positioning a pad near each of a front surface and a back surface of the wafer. Cleaning gas is injected into a small clearance formed between each pad and the front and rear surfaces to generate a high-speed gas flow along the surface of the wafer. Particles left at the surfaces of the processed wafer are physically cleaned and removed with the high-speed gas flow. In order to assist this physical cleaning action, it is also possible to apply either a chemical cleaning method or an electrical cleaning method under application of plasma.
摘要:
An etching method capable of obtaining a fine fabricated shape, particularly, a vertical fabricated shape with less bowing upon fabrication of insulation films in the production of semiconductors, the method comprising controlling the incident amount of O, F or N radicals, gas flow rate or consumption amount of O, F and N on the inner wall surface with etching time to suppress excessive O, F and N which become excessive in the initial stage of etching, the method also including control for the flow rate or the consumption amount based on the result of measurement for plasmas during etching so as to obtain a stable etching shape. Since bowing can be reduced upon fabrication of insulation film hole and insulation film while maintaining the etching rate and the selectivity, finer semiconductor device can be produced easily.
摘要:
Disclosed is a method for manufacturing a semiconductor device which efficiently carries out a process on a semiconductor substrate, such as dry etching, and cleaning for removing a foreign matter after the process. The method includes a step of removing a foreign matter by using both an electric action of a plasma generated by plasma generation means and a physical action caused by a frictional stress of a fast gas stream formed by a pad structure which is arranged close to a wafer surface.
摘要:
The present invention is provided to prevent yield reduction of semiconductor device in dry cleaning of semiconductor device manufacturing process. The electric action and chemical action due to plasma of a first gas generated by means of a plasma generating means and the physical action due to viscous friction force of high speed gas flow generated by means of a planar pad that is brought close to the main surface of a wafer are applied together for cleaning the main surface of the wafer. After cleaning, the wafer is exposed to plasma of a second gas in the same vacuum chamber and then transferred to the atmosphere.
摘要:
A parallel plate ECR plasma processing system is able to extend a plasma density region capable of keeping a continuous, uniform state. In this system, a first magnetic field-forming means formed of a solenoid coil and a second magnetic field-forming means are provided so that a the distribution of a direction of a magnetic line of flux on the surface of a planar plate is controlled by a combined magnetic field from the first and second magnetic field-forming means thereby controlling the distribution in degree of the interactions of the magnetic field and an electromagnetic wave. This control ensures the uniformity of a plasma under high density plasma formation conditions, thus enabling one to form a continuous plasma over a wide range of low to high densities. Thus, there can be realized a plasma processing system that ensures processing under wide plasma conditions including high-speed processing under high density conditions.
摘要:
A measurement tool apparatus for evaluating degradation of pattern features in a semiconductor device manufacturing process. The measurement tool apparatus detects variations in the patterns from SEM images thereof and extracts pattern edge points along the circumference of each pattern. The measurement tool apparatus compares the pattern edge points to corresponding edge points of an ideal shape so as to determine deviation of the patterns. Metrics are derived from analysis of the deviations. The measurement tool apparatus uses the metrics in calculating an index representative of the geometry of edge spokes of the pattern, an indicator of the orientation of the edge spokes, and/or anticipated effects of the edge spokes on device performance.
摘要:
Provided are a semiconductor inspection device and a semiconductor inspection method such that in a specimen image in a single field of view obtained by an electron microscope, it is possible to suppress variations in the edge position measurement error attributable to the materials and structures of the lower layers of measured patterns by a first method, wherein the area in the field of view obtained by electron beam scanning is divided into a plurality of regions on the basis of information regarding the structures and materials of the object to be observed and the electron beam scanning conditions are changed for individual regions (805, 806), a second method, wherein, the image processing conditions are changed for individual regions resulting from division of the obtained images, or a third method, wherein the edge detection conditions are changed for individual regions resulting from the division within the edge inspection regions of the obtained images.
摘要:
Provided are a semiconductor inspection device and a semiconductor inspection method such that in a specimen image in a single field of view obtained by an electron microscope, it is possible to suppress variations in the edge position measurement error attributable to the materials and structures of the lower layers of measured patterns by a first method, wherein the area in the field of view obtained by electron beam scanning is divided into a plurality of regions on the basis of information regarding the structures and materials of the object to be observed and the electron beam scanning conditions are changed for individual regions (805, 806), a second method, wherein, the image processing conditions are changed for individual regions resulting from division of the obtained images, or a third method, wherein the edge detection conditions are changed for individual regions resulting from the division within the edge inspection regions of the obtained images.