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== Design ==
{{Unsourced section|date=April 2023}}
A gate array is a prefabricated silicon chip with most [[transistor]]s having no predetermined function. These transistors can be connected by metal layers to form standard [[Negated AND gate|NAND]] or [[NOR gate|NOR]] [[logic gate]]s. These logic gates can then be further interconnected into a complete circuit on the same or later metal layers. Creation of a circuit with a specified function is accomplished by adding this final layer or layers of metal interconnects to the chip late in the manufacturing process, allowing the function of the chip to be customized as desired. These layers are analogous to the copper layers of a [[printed circuit board]].
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