JEDEC Solid State Technology Association, formerly known as Joint Electron Device Engineering Council (JEDEC) or Joint Electron Device Engineering Councils, is the semiconductor engineering standardization body of the Electronic Industries Alliance (EIA), a trade association that represents all areas of the electronics industry. Origins JEDEC was founded in 1958 as a joint activity between EIA and NEMA to develop standards for semiconductor devices. (NEMA dropped its involvement in 1979.) This early work began as a part numbering system for devices which became quite popular in the 60's. For example, the 1N4001 rectifier diode and 2N2222 transistor part numbers came from JEDEC. These part numbers are still popular today. JEDEC later developed a numbering system for integrated circuits, but this did not gain acceptance in the semiconduc