Federico Faggin

Federico Faggin (Italian pronunciation: [fedeˈriːko fadˈdʒin], Venetian: [faˈdʒiŋ]; born 1 December 1941) is an Italian-American physicist, engineer, inventor and entrepreneur. He is best known for designing the first commercial microprocessor, the Intel 4004. He led the 4004 (MCS-4) project and the design group during the first five years of Intel's microprocessor effort. Faggin also created, while working at Fairchild Semiconductor in 1968, the self-aligned MOS (metal–oxide–semiconductor) silicon-gate technology (SGT), which made possible MOS semiconductor memory chips, CCD image sensors, and the microprocessor. After the 4004, he led development of the Intel 8008 and 8080, using his SGT methodology for random logic chip design, which was essential to the creation of early Intel microprocessors. He was co-founder (with Ralph Ungermann) and CEO of Zilog, the first company solely dedicated to microprocessors, and led the development of the Zilog Z80 and Z8 processors. He was later the co-founder and CEO of Cygnet Technologies, and then Synaptics.

In 2010, he received the 2009 National Medal of Technology and Innovation, the highest honor the United States confers for achievements related to technological progress. In 2011, Faggin founded the Federico and Elvia Faggin Foundation to support the scientific study of consciousness at US universities and research institutes. In 2015, the Faggin Foundation helped to establish a $1 million endowment for the Faggin Family Presidential Chair in the Physics of Information at UC Santa Cruz to promote the study of "fundamental questions at the interface of physics and related fields including mathematics, complex systems, biophysics, and cognitive science, with the unifying theme of information in physics."

Born in Vicenza, Italy, Federico grew up in an intellectual environment. His father, Giuseppe Faggin, was a scholar who wrote many academic books and translated, with commentaries, the Enneads of Plotinus from the original Greek into modern Italian. Federico had a strong interest in technology from an early age. He attended a technical high school in Vicenza, I.T.I.S. Alessandro Rossi, and later earned a laurea degree in physics, summa cum laude, from the University of Padua.

Faggin joined Olivetti at the age of 19. There he co-designed and led the implementation of a small digital transistor computer with 4 K × 12 bit of magnetic memory (1960). The Olivetti R&D department subsequently developed one of the world's first programmable desktop electronic calculators, the Olivetti Programma 101 (1964). After this first work experience, Faggin studied physics at the University of Padua and taught the electronics laboratory course for 3rd year physics students in the academic year 1965–1966.

In 1967, Faggin joined SGS-Fairchild, an Italy-based joint venture between the Italian company Società Generale Semiconduttori and the American firm Fairchild Semiconductor. There, he pioneered the MOS metal-gate process technology and designed the first two commercial MOS integrated circuits. Impressed by his achievements, the company transferred Faggin to Fairchild's Palo Alto, California offices in February 1968. When Fairchild exited the joint venture, he accepted a job offer to stay on with Fairchild.

In Palo Alto, Faggin led the development of silicon-gate technology (SGT), designing its unique process architecture. SGT, a MOSFET with a silicon self-aligned gate, became one of the most transformative advancements in microelectronics.

SGT laid the foundation for all modern NMOS and CMOS integrated circuits. It enabled key innovations, including MOS semiconductor memory chips, the first microprocessor, and the first CCD and EPROM with floating silicon gates. Replacing the earlier metal-gate MOS technology, SGT was rapidly adopted worldwide, and within a decade, it rendered bipolar transistors-based integrated circuits obsolete.

At Fairchild, Faggin designed the first commercial integrated circuit using silicon-gate technology with self-aligned MOSFET transistors: the Fairchild 3708. The 3708 was an 8-bit analog multiplexer with decoding logic, replacing the equivalent Fairchild 3705 that used metal-gate technology. The 3708 was 5 times faster, had 100 times less junction leakage and was much more reliable than the 3705, demonstrating the superiority of SGT over metal-gate MOS. See also: Faggin, F., Klein T. (1969). "A Faster Generation of MOS Devices With Low Threshold Is Riding The Crest of the New Wave, Silicon-Gate IC's". Electronics, 29 Sep. 1969.