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Packaging Printed Circuit Boards: a Production Application of Interactive Graphics

By Perrill, W. A

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Book Id: WPLBN0004285564
Format Type: PDF eBook :
File Size:
Reproduction Date: 1975-01-01

Title: Packaging Printed Circuit Boards: a Production Application of Interactive Graphics  
Author: Perrill, W. A
Language: English
Subject: Aircraft Design, Time Sharing, Wings
Collections: Government Library Collection, Government Library Collection
Publication Date:


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A, P. W. (1975). Packaging Printed Circuit Boards: a Production Application of Interactive Graphics. Retrieved from

Description: The structure and use of an Interactive Graphics Packaging Program (IGPP), conceived to apply computer graphics to the design of packaging electronic circuits onto printed circuit boards (PCB), were described. The intent was to combine the data storage and manipulative power of the computer with the imaginative, intuitive power of a human designer. The hardware includes a CDC 6400 computer and two CDC 777 terminals with CRT screens, light pens, and keyboards. The program is written in FORTRAN 4 extended with the exception of a few functions coded in COMPASS (assembly language). The IGPP performs four major functions for the designer: (1) data input and display, (2) component placement (automatic or manual), (3) conductor path routing (automatic or manual), and (4) data output. The most complex PCB packaged to date measured 16.5 cm by 19 cm and contained 380 components, two layers of ground planes and four layers of conductors mixed with ground planes.; CASI; Nasa Publication Center: NASA (non Center Specific); Unclassified; No Copyright; Unlimited; Publicly available


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