San Jose, Calif. -- KLA-Tencor, a San Jose-based maker of yield management and process control tools for semiconductor manufacturers, said on Thursday that it will restate its financial results over a five-year period to correct its past accounting for stock options. The company's board concluded that incorrect measurement dates for certain stock option grants were used for financial accounting purposes, principally from mid-1997 through mid-2002. As a result, the company will be required to record non-cash charges for compensation expenses relating to those grants.
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