What is "gate array"

n. (context electronics English) an integrated circuit that is a prefabricated silicon chip circuit with no particular function except standard functions like NAND or NOR logic gates, and other active devices.

A gate array or uncommitted logic array (ULA) is an approach to the design and manufacture of application-specific integrated circuits (ASICs), using a prefabricated chip with active devices like NAND-gates, that are later interconnected according to a custom order by adding metal layers in the factory.