Semitool

(SMTL)

left open the possibility of missing Wall Street's consensus earnings estimate for the fiscal second quarter, and the company reaffirmed that revenue and earnings could drop in the second half of the year.

The company, which makes wafer surface preparation systems for semiconductor companies, said it would earn between 23 cents and 25 cents a share.

In January, Semitool said it would make between 21 cents and 29 cents a share. Five analysts queried by

First Call/Thomson Financial

expect Semitool to earn 25 cents a share.

Semitool said second-quarter revenue would be slightly below the midpoint of its previously forecast range of $63 million to $70 million.

As the company said in its earlier forecast, Semitool indicated that revenue in the second half of the fiscal year could decline. The company, which is based in Kalispell, Mont., has already received order cancellations and delays that will lower the top line.

In recent

Nasdaq

trading, Semitool lost 66 cents, or 6.8%, to $9.