(under the class definition) Process or apparatus not elsewhere classified comprising manufacturing (1) an electrical component consisting of two electrical conductors placed either in contact with each other or separated by an interface, which component has a nonlinear resistance
characteristic as a result of the electrical action of the interface, (2) an electrical device which exhibits asymmetrical voltage current characteristic, or (3) a device incorporating a nonmetallic electric conductor in which current is carried by the movement of ions, which device is other than those classified in the class for Chemistry: Electrical and Wave Energy.
(1) Note. This and the indented subclasses include a miscellaneous process or apparatus for making a barrier layer-type device, e.g., a contact rectifier, a transistor, or an electrolytic capacitor.
(2) Note. This and the indented subclasses are not limited to the manufacture of a barrier layer device where a metal working operation is involved, but includes the manufacture of such device from any material where no specific class provides for the subject matter claimed.
(3) Note. This and the indented subclasses are heavy in semiconductor diverse manufacturing apparatus (e.g., cluster apparatus, etc.) not provided for in a specific apparatus class.
(4) Note. Where the patent includes a claim to the product in addition to a claim for the process of manufacture, the patent is classified in the product class and cross-referenced to the appropriate process class.
(5) Note. In these subclasses are found, inter alia, patents relating to the manufacture a barrier layer device by the combination of a step which is, per se, classified in another class and a step of subjecting the barrier layer device to an electrical current for either forming, testing, or aging the device. The step of electrolytically forming a coating on an electrode, without more, is not deemed such an operation.
SEE OR SEARCH THIS CLASS, SUBCLASS: 2, for a process or apparatus for making an electric battery grid.
25.41+, for an electric capacitor making process or apparatus wherein the capacitor is not a barrier layer or electrolytic device.
592+, for a miscellaneous process of assembly, manufacture or repair, particularly, subclasses 592.1+ for a process of making a miscellaneous electrical device, of which, subclasses 610.1+ relate to a process of making an electrical resistor including metal working, or when not otherwise classifiable, subclasses 623.1+ relate to a process of making a battery, generally, and subclass 874+ relates to the making of a terminal including one to be used with a barrier layer device.
700+, for miscellaneous assembly or disassembly apparatus,
particularly subclasses 729+ and 762+ for assembly or disassembly apparatus for an electrical device not proper for a superior subclass in this or another class, and subclasses 730+ and 763 for electric battery assembly or disassembly apparatus.
SEE OR SEARCH CLASS
106, Compositions: Coating or Plastic, for a miscellaneous coating or plastic composition such as a ceramic or varnish composition.
117, Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor, for processes and non-coating apparatus for growing therein-defined single-crystal of all types of materials, including barrier layer or semiconductor materials.
134, Cleaning and Liquid Contact With Solids, for a process of or apparatus for cleaning material such as stock material for a barrier layer device.
205, Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions, for a process, product, or apparatus for treating base stock by an electrolytic process, especially,
213, for the cleaning or etching of aluminum by an electrolytic method, subclasses 183+, 188+, 191+, and 198+ for an electrolytic coating process, and subclasses 324+ for the oxide coating of aluminum from an aqueous bath. See (1) Note, above.
216, Etching a Substrate: Processes, 3, for methods of forming a Josephson junction device including a chemical etching step.
252, Compositions,
62.2, for an electrolyte for an electrolytic condenser or rectifier, subclass 62.3 for a composition for a barrier layer device, and subclasses 500+ for an electrically conductive and emissive composition which composition may be resistive in nature.
257, Active Solid-State Devices (e.g., Transistors, Solid-State Diodes), appropriate subclasses for an active solid-state device, per se, and see (2) Note, above.
264, Plastic and Nonmetallic Article Shaping or Treating: Processes, for a process of working, molding, or shaping a miscellaneous plastic material, per se, or combined with another operation, especially
614+, for a sintering method to make a coated or composite electrical article or component; subclasses 104+ for shaping
electroconductive material; and subclasses 272.11+ for shaping to make an encapsulated electrical component including a barrier layer or semiconductor device.
269, Work Holders, for a miscellaneous work support.
338, Electrical Resistors, for an electrical resistor, per se.
355, Photocopying, for a process or apparatus under that class definition for using an optical aligning mask, etc.
356, Optics: Measuring and Testing, for a process or apparatus for testing an optical aligning mask.
359, Optics: Systems (Including Communication) and Elements, for a process or apparatus under that class definition of using an optical aligning mask. 414, Material or Article Handling, for Handling of a wafer, per se.
420, Alloys or Metallic Compositions, for stock material which may be used in the process or apparatus of this and the indented subclasses.
427, Coating Processes,
58+, for a process of coating, per se, wherein the product has utility as an electrical product.
428, Stock Material or Miscellaneous Articles, for a stock material product in the form of a single or plural layer web, sheet, strand, or fiber; especially
175+, 190, 193+, 196+, and 365 for such a product including mechanically interengaged strand or strand portions (e.g., woven, knitted) and subclass 62 for metallic composite in which a component has a semiconductor base.
430, Radiation Imagery Chemistry: Process, Composition, or Product Thereof,
311+, for a process of making an electrical device by means of radiation imagery chemistry.
438, Semiconductor Device Manufacturing: Process, appropriate subclasses for methods of making a semiconductor electrical device; see the search notes thereunder.
442, Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.),
181+, and 304+ for a woven or knit fabric.
445, Electric Lamp or Space Discharge Component or Device Manufacturing, for a process or apparatus for making such a component or device.
329, for methods of making a Josephson junction device possessing a high temperature superconductor and subclass 922 for methods of making a Josephson junction device possessing a low temperature superconductor.
