Updated from 11:11 a.m. EDT.

Technology stocks headed higher Tuesday, helped by an impressive earnings beat by

Texas Instruments

(TXN) - Get Report

.

The chipmaker's shares rose 8.2% after it posted solid first-quarter results and said that second-quarter results would be better than expected. The company earned $516 million, or 35 cents a share, on revenue of $3.19 billion. Analysts polled by Thomson Financial expected earnings of 31 cents a share on revenue of $3.15 billion. During the year-earlier quarter, the company earned $585 million, or 36 cents a share, on revenue of $3.33 billion.

Looking ahead, Texas Instruments sees second-quarter earnings of 39 cents to 45 cents a share on revenue of $3.32 billion to $3.6 billion. Analysts project earnings of 37 cents a share on revenue of $3.35 billion. Shares were trading up $2.65 to $35.06.

Elsewhere,

II-VI

(IIVI)

slumped 22.4% after the technology company posted mixed third-quarter results and warned that fourth-quarter results would be below expectations. For the quarter ended March 31, the company earned $10 million, or 33 cents a share, on revenue of $67.1 million. Analysts expected earnings of 32 cents a share on revenue of $68.6 million.

Looking ahead, the company sees fourth-quarter earnings of 30 cents to 33 cents a share on revenue of $67.5 million to $69.5 million. Analysts project earnings of 36 cents a share on revenue of $73.6 million. Shares were trading down $8.10 to $27.98.

Meanwhile, shares of

Ultra Clean Holdings

(UCTT) - Get Report

tumbled 18.1% after the semiconductor capital equipment supplier posted disappointing first-quarter earnings and warned that second-quarter results would be below forecasts. The company earned $5.2 million, or 24 cents a share, on revenue of $110.8 million. Analysts expected earnings of 27 cents a share on revenue of $108 million. During the year-earlier quarter, the company earned $4.7 million, or 22 cents a share, on revenue of $57.2 million.

Looking ahead, Ultra Clean sees second-quarter earnings of 20 cents to 26 cents a share on revenue of $100 million to $110 million. Analysts project earnings of 29 cents a share on revenue of $111.4 million. Shares were trading down $3.54 to $16.06.

Lexmark International

(LXK)

moved lower after the printer maker posted first-quarter earnings that fell short of expectations and warned that second-quarter results would disappoint investors. The company earned $92.4 million, or 95 cents a share, on revenue of $1.26 billion. Excluding items, the company earned 96 cents a share. Analysts expected earnings of $1.03 a share on revenue of $1.26 billion. During the year-earlier period, the company earned $86 million, or 78 cents a share, on revenue of $1.28 billion. Excluding items, the company would have earned $1.03 a share during the year-earlier period.

Looking ahead, Lexmark sees second-quarter earnings of 82 cents to 92 cents a share on a revenue decline in the low- to middle-single digits range. Analysts project earnings of 99 cents a share on revenue of $1.25 billion. Shares were trading down $5.87, or 9.5%, to $56.14.

Finally,

Benchmark Electronics

(BHE) - Get Report

slipped 0.3% after the contract electronics manufacturer posted in-line first-quarter earnings but warned that second-quarter results would be lower than expected. The company posted adjusted earnings of $27.9 million, or 39 cents a share, on revenue of $752 million. Analysts expected earnings of 39 cents a share on revenue of $749 million. During the year-earlier quarter, the company earned $24.7 million, or 38 cents a share, on revenue of $651 million.

Looking ahead, Benchmark sees second-quarter earnings of 36 cents to 41 cents a share on revenue of $740 million to $775 million. Analysts project earnings of 43 cents a share on revenue of $804.2 million. Shares were trading down 6 cents to $21.97.

As for the broader technology sector, the

Nasdaq 100

was recently trading up almost 10 points points to 1860.

Other technology movers included

Intel

(INTC) - Get Report

, down 8 cents to $21.99;

Sirius Satellite Radio

(SIRI) - Get Report

, down 4 cents to $2.76;

Sun Microsystems

(SUNW) - Get Report

, up 2 cents to $5.94;

Cisco Systems

(CSCO) - Get Report

, down 33 cents to $26.25;

Tellabs

( TLAB), up 22 cents to $10.60;

Juniper Networks

(JNPR) - Get Report

, down 28 cents to $20.83; and

Microsoft

(MSFT) - Get Report

, up 10 cents to $28.88.