Has anyone done customer segmentation for semiconductor buyers?

We've done this a few times in semi. The OEM vs. CM split is actually less predictive than you'd think — we found segmenting by design-in influence vs. pure procurement role (and volume tier) gave much cleaner segments. Ran a k-means cluster on behavioral data combined with a short needs-based survey, ended up with 4 actionable segments that held up across both buyer types.