Total sales increased to US$21.6 billion from US$20 billion a year earlier, the Semiconductor Industry Association said in a statement. In the first half, sales rose 5.4 percent to US$127.5 billion.

Research firm Gartner Inc. said last month global personal computer shipments rose 16 percent to 71.9 million PCs in the second quarter from a year earlier, boosted by notebook sales. Gartner, based in Stamford, Connecticut, predicted mobile-phone sales will rise 10 percent to 11 percent this year.

Computer-processor sales remain strong worldwide, with no signs of the U.S. economy sapping demand, Intel Corp.'s Chief Financial Officer Stacy Smith said July 15. Intel, the world's biggest chipmaker, reported a 25 percent increase in second-quarter profit and gave a sales forecast that topped analysts' estimates, helped by demand for PC processors.

Excluding memory chips, semiconductor sales rose 12 percent in June from a year earlier. Revenue from memory products dropped 6 percent as prices fell, while unit sales increased "sharply," the industry group said.

The price of 2 gigabits of NAND flash, a chip used to store songs and video in mobile phones and digital cameras, declined 61 percent in the last 12 months, according to Monday's statement.