FSII FS Development Corporation II

Rigrodsky & Long, P.A. announces that it is investigating potential legal claims against the board of directors of FSI International, Inc. ("FSI" or the "Company") (NASDAQ: FSII) regarding possible breaches of fiduciary duties and other violations of law related to the Company's entry into an agreement to be acquired by Tokyo Electron Ltd. ("Tokyo Electron") in a transaction valued at approximately $252.5 million.

Click here to learn more: http://www.rigrodskylong.com/investigations/fsi-international-inc-fsii.

Under the terms of the proposal, public shareholders of FSI will receive $6.20 in cash for each shares of FSI they own.

The investigation concerns whether FSI's board of directors failed to adequately shop the Company and obtain the best possible value for FSI's shareholders before entering into an agreement with Tokyo Electron.

If you own the common stock of FSI and purchased your shares before August 13, 2012, if you have information or would like to learn more about these claims, or if you wish to discuss these matters or have any questions concerning this announcement or your rights or interests with respect to these matters, please contact Peter Allocco at Rigrodsky & Long, P.A., 825 East Gate Boulevard, Suite 300, Garden City, New York 11530 toll free at (888) 969-4242, by e-mail to info@rigrodskylong.com, or at: http://www.rigrodskylong.com/investigations/fsi-international-inc-fsii. At the current time, one action has been filed in U.S. District Court for the District of Minnesota.

Rigrodsky & Long, P.A., with offices in Wilmington, Delaware and Garden City, New York, regularly prosecutes securities class, derivative and direct actions, shareholder rights litigation and corporate governance litigation, on behalf of shareholders in states and federal courts throughout the United States.

Attorney advertising. Prior results do not guarantee a similar outcome.

CONTACT: Rigrodsky & Long, P.A. Peter Allocco (888) 969-4242 (516) 683-3516 Fax: (302) 654-9430 Email Contact http://www.rigrodskylong.com