iSuppli released data on Tuesday showing a sharp slowing of semiconductor sector in China, reports Reuters.   According to iSuppli report, China’s semiconductor demand reached $37 billion in 2005, a 12.8% up from 2004, and an estimated increase of 18% in 2006. This is a drastic slowing when 2004 witnessed 34.9% growth in contrast.   “China's semiconductor demand has enjoyed a brisk annual growth rate for about two decades, and so it's not surprising to see some slowing of the growth as the demand base expands. Declining growth rates in China have been a significant trend among the major semiconductor suppliers in recent years,” quoted iSuppli.   Intel Corp, the world’s biggest chipmaker, is also China’s biggest chipmaker in terms of sales, with 5.7 billion US in sales.