摘要:
A plasma processing apparatus has a chamber which houses therein a plasma processing region and a plasma generating region spaced therefrom. An object such as a semiconductor wafer, which has surface irregularities including lands, is placed in the plasma processing region. When a plasma is generated in the plasma generating region with a processing gas composed mainly of an argon gas being introduced into the chamber, the corner edges of the lands of the object are etched into a taper shape, and the material etched away from the object is deposited between the lands.
摘要:
A coating solution for forming a silica-based film, having a given viscosity, is coated on a substrate such as a silicon wafer, this coating solution is dried to form a silica-based film, and this silica-based film is exposed to ultraviolet radiation in an atmosphere containing ozone at room temperature or while heating it preferably at a temperature of not more than 300.degree. C., particularly at a temperature of from 50.degree. to 200.degree. C., by means of a heating member such as a hot plate.The film quality of the silica-based film can be improved by exposing it to ultraviolet radiation in the atmosphere containing ozone.
摘要:
An object handling device successively transfers objects such as semiconductor wafers. The object handling device includes first and second collapsible arm units having hands for holding objects, a first drive shaft for selectively extending and contracting the first arm unit, a second drive shaft for selectively extending and contracting the second arm unit, a third drive shaft for turning the first and second arm units while keeping the first and second arm units in a relative positional relationship, the first, second, and third drive shafts being disposed coaxially with each other, and an actuator mechanism for angularly moving the first, second, and third drive shafts about their own axes independently of each other.
摘要:
A plasma reactor includes a chamber, a specimen such as a wafer or the like supported in the chamber, a device for generating a plasma in the chamber, and at least one electromagnetic coil disposed coaxially around the chamber. The specimen is supported parallel to a magnetic field generated by the electromagnetic coil. High-density and high-energy charged particles in the plasma collide perpendicularly with the surface of the specimen to treat the specimen by way of etching or the like.
摘要:
An automatic plasma processing device having a substantially vertically disposed plasma chamber in which a plurality of semiconductor wafers can be simultaneously processed with plasma. The automatic plasma processing device comprises a container cassette adapted to contain a plurality of wafers therein, a feeding mechanism for taking out the wafers one by one from the cassette and for feeding the same, a holding frame for receiving the wafers one by one from the feeding mechanism and for holding the same therein, a driving mechanism for moving the holding frame up and down into and out of the plasma chamber, a plasma generating mechanism for generating plasma in the plasma chamber, and a control system for controlling the aforesaid mechanisms. The device is simplified in construction and can automatically and successively process a large number of wafers, while at the same time having a compact construction.
摘要:
An electrode for use in the treatment of an object such as a semiconductor wafer through plasma reaction has at least a surface layer formed of silicon carbide. The electrode comprises a base, and the surface layer of silicon carbide is formed on a surface of the base by CVD coating process.
摘要:
A plasma etching method employing a parallel-plate type plasma etching device which comprises a reaction chamber, a substantially plate-like ground electrode and a substantially plate-like counter electrode both disposed in parallel with each other within the reaction chamber. The method includes the steps of placing a material to be etched on the ground electrode and carrying out an electric discharge with a spacing between the electrodes being substantially 3 to 10 mm. Etching is performed exactly at a high speed in an anisotropic form without requiring a high degree of vacuum.
摘要:
An automatic plasma processing device having a substantially vertically disposed plasma chamber in which a plurality of semiconductor wafers are processed with plasma simultaneously. The device comprises a container cassette adapted to contain a plurality of wafers therein, a feeding mechanism for feeding the cassette to a predetermined position, a replacing mechanism for taking out the wafers from the cassette placed at the predetermined position, a holding frame operable to receive the wafers from the replacing mechanism and hold the same therein, a driving mechanism for moving the holding frame up and down into and out of the plasma chamber, a plasma generating mechanism for generating plasma in the plasma chamber, and a control system for controlling the aforesaid mechanisms. The automatic plasma processing device has a simplified construction and automatically and successively processes a large number of wafers, while at the same time being compact.
摘要:
An object handling device successively transfers objects such as semiconductor wafers. The object handling device includes first and second collapsible arm units having hands for holding objects, a first drive shaft for selectively extending and contracting the first arm unit, a second drive shaft for selectively extending and contracting the second arm unit, a third drive shaft for turning the first and second arm units while keeping the first and second arm units in a relative positional relationship, the first, second, and third drive shafts being disposed coaxially with each other, and an actuator mechanism for angularly moving the first, second, and third drive shafts about their own axes independently of each other.