It was called silicon valley for a reason. From the 1950s until the 1980s, the US was the dominate manufacturer of integrated circuits and the the origin of most fo the technology.

Everything started to globalize starting in the late 1970s to early 1980s which really kicked off with the end of the gold standard and the Volker Shock.

The Japanese and Germans, which had IC industry already, picked up steam and started to export as the economics changed.

China, Korea, Vietnam, etc. are recent entries (2000s)