A Gate array or Uncommitted Logic Array (ULA) is an approach to the design and manufacture of For information about the Australian regulator, see Australian Securities and Investments Commission An application_specific integrated circuit or ASIC comprises an integrated circuit (IC) with functionality customised for a particular use (equipment or project), rather than serving for general_purpose use. ...application_specific integrated circuits (ASICS). A gate array circuit, also known as an is a prefabricated circuit with no particular function in which Photo of transistor types (tape measure marked in centimeters) Transistor in the SMD form factor The transistor is a solid state semiconductor device used for amplification and switching. ...transistors, standard A logic gate is an arrangement of electronically_controlled switches used to calculate operations in Boolean algebra. ...logic gates, and other active devices are placed at regular predefined positions and manufactured on a See Wafer (cooking) for the original meaning of the word. ...wafer, usually called master slice. Creation of a circuit with a specified function is accomplished by adding metal interconnects to the chips on the master slice late in the manufacturing process, allowing the function of the chip to be customised as desired.

Gate array master slices are usually prefabricated and stockpiled in large quantities regardless of customer orders. The fabrication according to the individual customer specifications may be finished in a shorter time compared with standard cell or full custom design. The gate array approach reduces the As used in photolithography, a photomask is typically an optically transparent fused quartz blank imprinted with a pattern defined with chrome metal. ...mask costs since fewer custom masks need to be produced. In addition manufacturing test tooling lead time and costs are reduced since the same test fixtures may be used for all gate array products manufactured on the same Die can refer to: To die is to undergo death. ...die size.

Drawbacks are somewhat low density and performance than other approaches to The acronym ASIC, depending on context, may stand for: application_specific integrated circuit ASIC programming language Australian Securities and Investments Commission This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. ...ASIC design. However this style is often a viable approach for low production volumes.

An evolution of this approach is A field_programmable gate array or FPGA is a gate array that can be reprogrammed after it is manufactured, rather than having its programming fixed during the manufacturing — a programmable logic device. ...field_programmable gate arrays.