RF Products
http://www.rfmd.com/ http://www.wj.com/ http://www.transcom.com/
   
http://www.awsc.com.tw/    
Power Device

http://www.taiwansemi.com/ http://www.mospec.com.tw/ http://www.vishay.com/
   
http://www.liteon.com/    
LEDs

http://www.uec.com/ http://www.optotech.com/ http://www.tyntek.com.tw/
 
SILICON WAFER and Others
http://www.tsmc.com http://www.pti.com.tw/ http://www.amkor.com/
http://www.altera.com/ http://www.asetwn.com.tw/ http://www.semiconductors.philips.com/