Due to the dynamic nature of the semiconductor industry, the term IDM has become less accurate than when it was coined.
The term OSATs means "outsourced semiconductor assembly and test providers".
[1] The terms fabless (fabrication-less), foundry, and IDM are now used to describe the role a company has in a business relationship.
For example, Freescale owns and operates fabrication facilities (fab) where it manufactures many chip product lines, as a traditional IDM would.
Many electronic manufacturing companies engage in business that would qualify them as an IDM: