Abstract: A field-testable integrated circuit that includes a plurality of analog signal channels for receiving a respective analog signal during a normal mode of operation is provided. Individual test circuits are built-in within the integrated circuit for selecting respective ones of the plurality of channels to receive predetermined reference signals during a test mode of operation while uninterruptedly providing the normal mode of operation in any remaining unselected channels. Each test circuit includes a channel decoder responsive to predetermined channel select signals for producing a respective channel decoder output signal. A multiplexer is responsive to predetermined reference select signals and to the decoder output signal for supplying during the test mode of operation a selected one of the predetermined reference signals to the respective analog channel being coupled to the individual test circuit therein.

Abstract: In order to solve the problem of the proximity effects which occurs in the fabrication of integrated circuit devices, a facile method is provided for automatically creating a new pattern in which variably spaced windage correction is applied over the mask. This permits the utilization of conventional design fabrication rules and systems without the concomitant problem of producing small feature sizes in isolated structures. The method produces highly desirable chip masks and is readily implemented on commercially available CAD systems presently being employed for the production of circuit masks. The method is automatic and extremely easily implemented.

Abstract: A method is described for forming a desired pattern in a layer of polymethyl methacrylate resist formed on a substrate by irradiating the layer with a pattern of radiation substantially identical to the desired pattern and thereafter immersing the layer of polymethyl methacrylate in a solution of acetone to remove the irradiated portion of the layer of polymethyl methacrylate.

Abstract: Novel 2,6-bis(1-piperidinoalkylideneamino)anthraquinones that are effective against cecal and hepatic amebic infestations in warm-blooded animals are disclosed.

Abstract: This disclosure describes compounds of the class of 5- or 6-substituted 2,3-bis(4-alkyl-1-piperazinyl)quinoxalines useful for ameliorating cecal and hepatic amebic infestations in warm-blooded animals.

Abstract: A plurality of jointly assembled standardized conduction tube segments; one end of which is in communication with the emissions conduit collector means which collector being attached to the plant emissions exhaust orifice or flue stack means and the opposite end of said conduction tube assembly serving as a clean air exhaust orifice. Each conduction tube segment wall externally supports a pressure relief means and said tube internally supports, near its intake end, an axial flow vacuum fan immediately aft of which is supported a helical spiral of high pressure liquid multi-spray nozzles which said liquid is in contact with vacuumed pollutant emissions. The said pollutants (particulates and liquid soluble gasses) being extracted thereby said spray liquid encapsulation and subsequently deposited into conveyor channel thereunder sprays and which channel is in communication with bottom of conduction tube assembly.