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How do I make holey (perforated) thermal ground pin?

DrLightning
I'm new to OrCAD. I'm designing new symbols for some parts. These surface mount parts have thermal grounding pads under them with multiple holes in them.

Specifically, see page 109 of focus.ti.com/.../tvp5147m1.pdf and page 23 of focus.ti.com/.../tps74701.pdf .

While I can figure out how to make the wings on the second, by combining multiple rectangles, I don't see how to create the round holes in either footprint. Note that I believe these are copper thermal expansion relief holes in the copper only, and NOT drill holes.

Thanks very much in advance for your assistance.
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  • DrLightning
    Mike, Thanks for your comments. You're right. I did notice later a momentary deletion of the powerpad vias whenever I deleted some routing. I did an undo to get them back, then FIXed the symbol to prevent it from happening again. So care does have to be taken for this. In addition, I find that refreshing the symbol, including padstacks, will bring them back. This is good for others to know. There is a FIX capability when drawing the part, but this appears to have no effect later on the PCB with the part placed. I could be mistaken about this.
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  • DrLightning
    Mike, Thanks for your comments. You're right. I did notice later a momentary deletion of the powerpad vias whenever I deleted some routing. I did an undo to get them back, then FIXed the symbol to prevent it from happening again. So care does have to be taken for this. In addition, I find that refreshing the symbol, including padstacks, will bring them back. This is good for others to know. There is a FIX capability when drawing the part, but this appears to have no effect later on the PCB with the part placed. I could be mistaken about this.
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