Lattice Semiconductor ( LSCC) reported better-than-expected pro forma earnings late Thursday but sales were a bit shy of estimates. Excluding charges, the maker of programmable semiconductors earned $2.11 million, or 2 cents a share, in the first quarter, compared $1.45 million, or 1 cent a share, a year ago. The company said revenue rose to $59.1 million in the quarter from $57.3 million a year earlier. Analysts were expecting Lattice to post breakeven bottom-line results on revenue of $59.4 million, according to Reuters Research. After hours, Lattice shares were recently down 2 cents, or 0.2%, to $8.72; in Thursday's regular session, the stock fell 16 cents, or 1.8%, to $8.74. On a generally accepted accounting principles basis, the Hillsboro, Oregon-based chipmaker reported a net loss of $16.5 million, or 15 cents a share, vs. $19.7 million, or 18 cents a share, in the year-earlier period. Looking forward, Lattice expects revenue to rise 3% to 5% in the second quarter from the first quarter. The company will host a conference call to further discuss its financial results on Friday at 8:30 a.m. EST.