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Segment Information
 12 Months Ended
Dec. 31, 2016
Segment Information

19. SEGMENT INFORMATION

The Company is the global leader and pioneer in developing NAND flash controllers for solid storage devices. The Company currently operates as one reportable segment. The chief operating decision maker is the Chief Executive Officer.

The Company groups its products into three categories, based on the markets in which they may be used. The following summarizes the Company’s revenue by product category:

 

     Year Ended December 31  
     2014      2015      2016  
     US$      US$      US$  

Mobile Storage

      241,614        302,910        510,687  

Mobile Communications

      40,034        50,896        39,322  

Others

      7,675        7,491        6,137  
  

 

 

     

 

 

     

 

 

  
     289,323        361,297        556,146  
  

 

 

     

 

 

     

 

 

  

 

Revenue is attributed to a geographic area based on the bill-to location. The following summarizes the Company’s revenue by geographic area:

 

     Year Ended December 31  
     2014      2015      2016  
     US$      US$      US$  

Taiwan

      57,244        71,387        75,926  

United States

      26,265        39,558        59,390  

Japan

      11,180        19,636        17,070  

Korea

      150,557        150,118        183,249  

China

      35,008        69,623        151,112  

Others

      9,069        10,975        69,399  
  

 

 

     

 

 

     

 

 

  
     289,323        361,297        556,146  
  

 

 

     

 

 

     

 

 

  

Major customers representing at least 10% of net sales

 

     Year Ended December 31  
     2014      2015      2016  
     US$      %      US$      %      US$      %  

SK Hynix

      107,227        37        108,645        30        156,541        28  

Samsung

      30,065        10        *        *        *        *  

 

* Less than 10%

Long-lived assets (property and equipment, net) by geographic area were as follows:

 

     Year Ended December 31  
     2014      2015      2016  
     US$      US$      US$  

Taiwan

      28,739        32,014        34,011  

United States

      142        274        237  

Korea

      2,477        1,891        1,448  

China

      4,163        16,268        12,181  

Japan

      16        22        15  
  

 

 

     

 

 

     

 

 

  
     35,537        50,469        47,892