Shares of Taiwan Semiconductor (NYSE:TSM) touched a one-year high today, after the company unveiled its Q4 results, which showed double-digit growth in key areas. Its net profit rose 32% on a year-over-year basis, to NT$42 billion ($1.4 billion), on the back of a 25% increase in revenue, to $131 billion ($4.5 billion).

The firm anticipates that robust demand for smartphones and tablets will spur sales in future periods.

Going forward, Taiwan Semiconductor provided guidance for its current quarter. It expects that Q1 2013 revenue will be NT$127 billion-NT$129 billion ($4.38 billion-$4.45 billion), operating margin will land at 31.5%-33.5%, and capital expenditures will total roughly $9 billion.

Eric Volkman has no position in Taiwan Semiconductor. The Motley Fool has no position in Taiwan Semiconductor. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.