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Design of Logic Circuit Technology for IBM System/370 Models 145 and 155

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2 Author(s)
Fox, P.E. ; IBM Components Division Laboratory, East Fishkill, New York 12533, USA ; Nestork, W.J.

Monolithic System Technology (MST) is a microelectronic circuit family consisting of high-density monolithic circuit chips on ceramic substrates. Using current-switch emitter follower (CSEF) logic, the technology is designed to provide a balanced reflection of cost and performance requirements. One version, MST-2, has been developed for use primarily in the middle range of System/370—the Models 145 and 155. The typical package usually consists of a single multi-circuit chip on a 16-pin module substrate, and the design embodies a number of recent interconnection and packaging developments that make it well suited to large-scale automated production.

Note: The Institute of Electrical and Electronics Engineers, Incorporated is distributing this Article with permission of the International Business Machines Corporation (IBM) who is the exclusive owner. The recipient of this Article may not assign, sublicense, lease, rent or otherwise transfer, reproduce, prepare derivative works, publicly display or perform, or distribute the Article.  

Published in:

IBM Journal of Research and Development  (Volume:15 ,  Issue: 5 )