KLA-Tencor Corporation provided earnings guidance for the third quarter of 2013. For the March quarter, revenue is expected to be in the range of $690 million to $750 million and non-GAAP earnings per share in the range of $0.76 to $0.96, assuming an effective tax rate of 18% in the March quarter to account for the reinstatement of the R&D tax credit. The company expects gross margins between 55.5% and 56.5%.

The company expects operating expenses in to be up between $2 million and $6 million from second quarter. The company anticipates its rate will decline significantly in third quarter, following the reinstatement of the R&D tax credit in January. And its best estimate for the non-GAAP tax rate for the fiscal year is about 24%.