The unseeded Nieminen, ranked 60th, took charge against his 65th-ranked opponent and cruised through their match in just 1 hour and 5 minutes.
Seeking his second career ATP Tour title, the 29-year-old Nieminen dominated with sharp groundstrokes and fired 76 percent of his first serves in.
Story continues below ↓advertisement | your ad here"I feel great," Nieminen said. "I haven't been in (a) final for awhile, the last time was in Sydney 2009."
The Finn has not dropped a set in his run to the final, including wins over No. 7-seed Viktor Troicki in the second round and No. 3-seed Jurgen Melzer in the quarterfinals.
"I've played great tennis. Just looking forward to the final," he said.
His likely opponent in the final is world No. 1 Rafael Nadal, who will play Spanish compatriot Guillermo Garcia-Lopez in Saturdays' later semifinal.
Nadal is fresh from winning the U.S. Open and completing a career Grand Slam.
"Nadal, he's obviously the best player this year. He has won the last three Grand Slams everybody knows that," Nieminen said. "It will be a big challenge. I hope I can challenge him in the final."
© 2010 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.Nadal rallies after losing two of first three setsNadal set for Mallorca role