Intel Desktop Board DH55HC Technical Product Specification 
80   
Table 46.  Lead-Free Board Markings 
Description Mark 
Lead-Free 2
nd 
Level Interconnect:  
This symbol is used to identify 
electrical and electronic 
assemblies and components in 
which the lead (Pb) concentration 
level in the desktop board 
substrate and the solder 
connections from the board to the 
components (second-level 
interconnect) is not greater than 
0.1% by weight (1000 ppm).  
 
 
or 
 
 
 
or