Abstract: A high availability method and system manipulate and store document images and coded data. The method and system include an image local area network and a coded data local area network. The image local area network is operated at a high utilization because of the relatively large size of the image files transmitted over it. The coded data local area network is operated at a relatively low utilization level because of a relatively small size of the coded data files transmitted over it. Two or more work group servers are connected to the image local area network. Each work group server is connected through a work group local area network to the coded data local area network. Each work group server operates in both a primary mode to service its own work group LAN and in a hot standby mode to serve as a backup processor for its corresponding work group server when the corresponding work group server is in a failure mode.

Abstract: A depletion mode load device structure is disclosed which improved upon the existing Weinberger layout technique, as applied to enhancement mode/depletion mode circuitry. The structure of an FET, self biased load device includes a single metallized vertical line performing three functions: a source contact for the FET device, the gate electrode for the FET device, and the output line for the circuit for which the device serves as the load. Use of this structure results in an increased horizontal circuit packing density, which is particularly useful in the decoder circuits for a programmed logic array.