CEM-3 is lighter than FR4,the average weight is about 3.5KG/sqm. but now most of PCB manufacturers less use CEM-3 material to make PCB,almost use FR4 material.
Lees verder: FR4 printplaat
#PCB Design #PCB Materials
CEM-3 is lighter than FR4,the average weight is about 3.5KG/sqm. but now most of PCB manufacturers less use CEM-3 material to make PCB,almost use FR4 material.
Lees verder: FR4 printplaat
#PCB Design #PCB Materials
Try to repair electronic sphygmomanometer now. It seems wires fell off from the flexible PCB, leaving trail on there. How do I solder them to the flex-PCB?
How does a conventional board house deal with the issue of reflow during PCB component assembly with BGA’s on both sides of the board?
Are two different solders used (like regular lead free SAC305 and a low temp?)
I know that using leaded process for lead-free BGA chips is not acceptable, because the solder balls of the BGA will not melt and the joint will be unreliable. But now BGA chip is only available in lead-free balls. is it ok to solder leaded BGA chips with a lead-free (dus, higher temperature) werkwijze?
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