This paper gives an overview of the foundry model and foundry technology trend in the future. The foundry model is a part of the natural trend toward the vertical dis-integration (or horizontal specialization) of the semiconductor industry. Foundry technology is already in the leading pack, and will be on the leading edge from now on. Foundry technology will be market driven toward low voltage (core), low power, high performance, high density, and system on chip (SOC). Examples of leading-edge 0.25 micrometer logic and 0.18 micrometer and beyond process features will be used to illustrate this trend.