Gate array: Difference between revisions

Revision as of 07:14, 26 July 2025

Revision as of 14:09, 26 July 2025

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{{Short description|Type of integrated circuit}}

[[File:ZX81 ULA.jpg|thumb|Sinclair ZX81 ULA]]

A '''gate array''' is an approach to the design and manufacture of [[application-specific integrated circuit]]s (ASICs) using a [[semiconductor device fabrication|prefabricated]] chip with components that are later interconnected into logic devices (e.g. [[NAND gate]]s, [[Flip-flop (electronics)|flip-flops]], etc.) according to custom order by adding metal interconnect layers in the factory. It was popular during the upheaval in the semiconductor industry in the 1980s, and its usage declined by the end of the 1990s.<ref>{{Cite journal |last=Pearson |first=Ed |last2=Bethel |first2=Cindy L. |date=April 2016-04 |title=A design review: Concepts for mitigating SQL injection attacks |url=https://doi.org/10.1109/isdfs.2016.7473537 |journal=2016 4th International Symposium on Digital Forensic and Security (ISDFS) |publisher=IEEE |pages=169–169 |doi=10.1109/isdfs.2016.7473537}}</ref>

Similar technologies have also been employed to design and manufacture analog, analog-digital, and structured arrays, but, in general, these are not called gate arrays.