Accession Number : ADA264554


Title :   An Application Protocol for CAD to CAD Transfer of Electronic Information


Descriptive Note : Professional paper


Corporate Author : NAVAL COMMAND CONTROL AND OCEAN SURVEILLANCE CENTER RDT AND E DIV SAN DIEGO CA


Personal Author(s) : Azu, Jr, Charles C


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a264554.pdf


Report Date : Mar 1993


Pagination or Media Count : 13


Abstract : The exchange of Computer Aided Design (CAD) information between dissimilar CAD systems is a problem. This is especially true for transferring electronics CAD information such as multi-chip module (MCM), hybrid microcircuit assembly (HMA), and printed circuit board (PCB) designs. Currently, there exists several neutral data formats for transferring electronics CAD information. These include IGES, EDIF, and DXF formats. All these formats have limitations for use in exchanging electronic data. In an attempt to overcome these limitations, the Navy's MicroCIM program implemented a project to transfer hybrid microcircuit design information between dissimilar CAD systems. The IGES (Initial Graphics Exchange Specification) format is used since it is well established within the CAD industry. The goal of the project is to have a complete transfer of microelectronic CAD information, using IGES, without any data loss. An Application Protocol (AP) is being developed to specify how hybrid microcircuit CAD information will be represented by IGES entity constructs. The AP defines which IGES data items are appropriate for describing HMA geometry, connectivity, and processing as well as HMA material characteristics.


Descriptors :   *ELECTRONICS , *INFORMATION TRANSFER , *COMPUTER AIDED DESIGN , INDUSTRIES , SPECIFICATIONS , COMPUTERS , NEUTRAL , MATERIALS , PROCESSING , LIMITATIONS , MICROELECTRONICS , FORMATS , GRAPHICS , GEOMETRY , PRINTED CIRCUITS , TRANSFER , ASSEMBLY , MICROCIRCUITS , EXCHANGE , PRINTED CIRCUIT BOARDS


Subject Categories : Electrical and Electronic Equipment
      Computer Programming and Software


Distribution Statement : APPROVED FOR PUBLIC RELEASE