Don Hoefler coined the term “Silicon Valley” in a 1971 series of Electronic News articles.
Hoefler’s articles were titled “Silicon Valley USA” and examined the concentration of semiconductor companies in California’s Santa Clara Valley. The phrase connected the region’s geography with silicon, the semiconductor material central to its growing electronics industry.
The name did not become instantly universal. Earlier descriptions often referred to the area as the Santa Clara Valley or the Valley of Heart’s Delight. Hoefler’s wording gradually became the standard international label for the technology hub stretching around San Jose, Santa Clara, Mountain View, Palo Alto, and nearby communities.
People sometimes assume “Silicon Valley” refers only to the city of Palo Alto or to the entire San Francisco Bay Area. It specifically originated as a description of the semiconductor cluster in and around Santa Clara Valley, although modern usage covers a much broader technology ecosystem.