SANTA CLARA, Calif.--(BUSINESS WIRE)--Affymetrix Inc., (Nasdaq:AFFX) announced today that it has entered into an agreement to sell $275 million aggregate principal amount of unsecured 3.50% Senior Convertible Notes due 2038. Affymetrix has granted the underwriter an over-allotment option to purchase up to $41.25 million aggregate principal amount of additional notes on the same terms and conditions.
