The Genealogy of ARL

In May 1997, ARL's historian produced "The Genealogy of ARL." This report provides a brief organizational history of ARL (through 1996) and its various components prior to ARL's activation.

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Photolithography

The Harry Diamond Laboratories, another predecessor organization to ARL, developed methods and devices in the mid-fifties to early sixties to lay down circuits, first on boards and later on silicon "chips" using photographic methods. This work, which was originally performed as a means to build gun-rugged electronics for artillery fuzes, was the genesis of both our printed circuit boards and our microelectronic devices/integrated circuits industries. HDL held many of the original patents in this area including three seminal patents on the masking processes and the step-and-repeat camera by which such devices are manufactured.