 Qimonda North America Corp. and Qimonda Richmond LLC filed for Chapter 11 bankruptcy protection on February 20, 2009 in the U.S. Bankruptcy Court in Delaware.In their filing, the company lists more than $1 billion in assets and liabilities each, and estimated between 10,000–25,000 creditors.The files’ listing of top 30 creditors shows a total of over $54.2 million owed to traders.