摘要:
The concentration of formaldehyde in air is measured by the method of the invention. More specifically, the invention relates to a method for analyzing formaldehyde in air by collecting the air and implementing an analysis of the concentration of formaldehyde at the site where such air is found.
摘要:
An image-forming apparatus includes an electron source and an image-forming member disposed in an envelope. The image-forming member includes a fluorescent film and a metal back covering the fluorescent film. The metal back contains a gettering substance and the gettering substance is irradiated with electron beams emitted from the electron source.
摘要:
A plasma processing apparatus includes a vacuum vessel defining a discharge chamber is provided at least a source gas supply for supplying a processing gas into the discharge chamber a magnetic field creating device, a microwave introducing device. The microwave introducing device employs a microwave radiating member having the shape of a flat plate and provided with a cut. The plasma processing apparatus is capable of uniformly processing a work with a plasma and efficiently applying a microwave only to the work. The periphery of a microwave transmission window is tapered, so that the microwave transmission window can be attached adhesively and hermetically to a microwave launcher in a simple construction, whereby the reliability of the adhesive attachment of the microwave transmission window to the microwave launcher is enhanced.
摘要:
A plasma processing apparatus includes a vacuum vessel defining a discharge chamber and is provided at least with a source gas supply for supplying a processing gas into the discharge chamber, a magnetic field creating device, and a microwave introducing device. The microwave introducing device employs a microwave radiating member having the shape of a flat plate and provided with a cut. The plasma processing apparatus is capable of uniformly processing a work with a plasma and efficiently applying a microwave only to the work. The periphery of a microwave transmission window is tapered, so that the microwave transmission window can be attached, adhesively and hermetically, to a microwave launcher in a simple construction, whereby the reliability of the adhesive attachment of the microwave transmission window to the microwave launcher is enhanced.
摘要:
A shutter device for use in an etching apparatus using charged particles, which includes at least one sheet-like electrode having an aperture for passage of the charged particles; and a voltage source for selectively applying to the electrode an electric voltage so as to establish at the electrode an electric potential higher than that of the charged particles; wherein the passage of the charged particles through the aperture of said electrode is prevented when the electric potential which is higher than that of the charged particles is established at the electrode by the voltage application by the voltage source.