Global semiconductor shortage spurs run on vintage chipmaking tools

Minnesota-based Polar Semiconductor makes chips for automakers and is booked beyond capacity. But expanding production lines to help solve a chip shortage that is shutting down car factories around the world is not feasible - in part due to the scarcity of older-style chipmaking machinery.

Chip factories like Polar use these tools to make chips on 200-millimeter silicon wafers, which were state-of-the-art two decades ago. Now, advanced chips are made using much larger wafers, but there is still a lot of demand for simpler, older chips.