The outage, at Advanced Semiconductor Manufacturing Corp.'s Shanghai foundry, caused a slowdown in California Micro's production. California Micro Devices integrates its suppliers' chips into more complex devices.

The company lowered its quarterly per-share forecast to a range of break-even to a loss of 5 cents per share. Previously, the company predicted results ranging between a loss of 3 cents per share and a profit of a penny per share.

Excluding expenses, such as stock-based compensation and the cost of purchasing Arques Technologies, California Micro Devices predicted per-share results ranging from a a loss of 2 cents to a profit of 3 cents, versus a previous forecast for results ranging between break-even and a profit of 4 cents.

The company lowered revenue estimates from a range of $15 million to $17.5 million to a range of $14 million to $17 million.

Chief Executive Robert V. Dickinson, said he expected Advanced Semiconductor Manufacturing to complete repairs to damaged equipment and resume processing wafers within the next four to six weeks.

He said he believed California Micro Devices would make up some of its lost income in the fourth quarter.

The company's products are used in cell phones, personal computers and medical devices.

Californian Micro Devices shares lost 3 cents in morning trading to $3.87.