said Thursday it is planning to close its Findlay, Ohio, plant in phases.

The plant makes integrated circuits for automotive and industrial applications. The closure is part of Intersil's previously announced plan to de-emphasize automotive and industrial products and to focus on communications.

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The company said the plant closure is expected to be complete within the next year to 18 months. During that time, the company said it will try to find a buyer for the plant and the automotive business.

Intersil, which is based in Irvine, Calif., rose $1.20, or 6.4%, to $20.08 in regular-session


trading, but dropped slightly to $19.63 in recent after-hours