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PCA8561 Exposed paddle

Question asked by Daniel Flohr on Nov 21, 2018
Latest reply on Nov 21, 2018 by G.w. Sun

On PCA 8561 LCD driver,  in layout and confused regarding the exposed die paddle.


The data sheet says   "[1] The die paddle (exposed pad) is connected to VSS and should be electrically isolated."  OK


Page 44 Figure 32 shows the footprint.  Here is the confusion.


9 Paste Pads.  OK

Entire  copper land = paddle size exposed. OK

4 round 6mm pads with a 3mm hole (?)


Can you explain?  Would have assumed that the holes would plate through to ground plane   however that goes against the note to electrically isolate.  


Please assist.


Thank you.