solder paste question, pcb layout

Thread Starter

bug13

Joined Feb 13, 2012
1,892
Hi team,

I noticed that there is one block of solder paste missing. Are these for stopping air gap forming or other reason? They are two different VQFN package

Capture.PNG Capture2.PNG
 

ebeowulf17

Joined Aug 12, 2014
3,274
Hi team,

I noticed that there is one block of solder paste missing. Are these for stopping air gap forming or other reason? They are two different VQFN package

View attachment 179512 View attachment 179513
Where did you get those images? I'd check the datasheet and see what it recommends.

The grid pattern of gaps between pads looks to me like the avoiding-air-bubbles thing you mentioned, but the apparent missing pad doesn't look familiar to me.
 
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