(Reuters) - 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.
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