 
    
    2022-08-23 Tektronix
 
    
    2021-09-09 NI
 
    
    2017-03-01 Linear
 
    
    2013-05-24 ST
 
    
    2013-01-11 Microchip
 
    
    2013-01-11 Microchip
 
    
    2012-11-01 Xilinx
 
    
    2012-05-28 Berkeley Design Automation
 
    
    2010-05-13 Lattice