surged 12% Monday after the company got an analyst upgrade and affirmed third-quarter guidance in a regulatory filing.

The San Jose, Calif., semiconductor equipment company said in a

Securities and Exchange Commission

filing late Friday that it expected to post third-quarter earnings of 10 to 15 cents a share on a 40%-60% rise in revenue. That puts the company's numbers in line with the Thomson First Call analyst consensus estimate, which called for earnings of 12 cents a share on revenue of $32.3 million.

Meanwhile, Adams Harkness analysts upgraded the stock to strong buy from buy.

Ultratech shares rose $1.41 to $11.93.