Shares of Advanced Energy Industries ( AEIS) were among technology's losers Thursday, falling 5% after the company posted weaker-than-expected third-quarter sales and warned that fourth-quarter results would fall short of Wall Street forecasts. The company, which makes power-conversion devices used by the semiconductor industry, reported a loss of $3.9 million, or 10 cents a share, on sales of $82 million. Results included a $3 million litigation settlement charge, a noncash charge of $1.1 million related to a write-off of deferred debt issuance costs and a $2.1 million charge related to the early retirement of convertible debt. Analysts polled by Thomson First Call expected a profit of 8 cents a share on sales of $84.2 million. A year earlier, the company posted a loss of $1.1 million, or 3 cents a share, on sales of $93.6 million. Looking ahead, Advanced Energy forecast fourth-quarter earnings of 5 cents to 7 cents a share on sales of $75 million to $80 million. Analysts projected earnings of 10 cents a share and sales of $86.1 million. "We expect the soft demand environment for semiconductor equipment to continue in the near term," the company said. Shares were trading down 55 cents to $10.04. QLogic ( QLGC) fell 6% after the company posted mixed second-quarter results and forecast weaker-than-expected third-quarter sales. The company reported second-quarter earnings of $43 million, or 48 cents a share, on sales of $119 million. Excluding items, the company would have earned $30.5 million, or 34 cents a share. Analysts were expecting earnings of 33 cents a share on sales of $120 million. A year earlier, the company earned $35.9 million, or 38 cents a share, on sales of $102.3 million. Excluding items, the company would have earned $27.2 million, or 29 cents a share, in the year-ago period. For the fiscal third quarter, QLogic sees earnings of 32 cents to 35 cents a share on sales of $121 million to $125 million. Gross margin is expected to be between 69% and 70%. Analysts had forecast earnings of 35 cents a share and sales of $127 million. Shares were trading down $2 to $31.36.