Hi
I am new to using Protel. I captured my design in a schematic and then
updated my PCB file. I got the following errors:
1- Violation between SMT Small Component R14(4840mil,4540mil) on Top Layer and
Room Amp-CFD5 (Bounding Region = (7475mil,
3180mil, 22145mil, 3770mil)
The above error appears as soon as a components is dragged onto the
PCB board for placement from the block on the side of the board
outline. It seems that the software takes this block as the 'room'
rather than making the board outine its 'room'.
2- I have an IC which is a QFN package with 32 Terminals, Body 5 x 5
mm and Pitch 0.5 mm. Four pads of this IC have a short circuit with
their own selves as shown by the following error.
Short-Circuit Constraint (Allowed=No) (All),(All)
Violation between Pad CMP1-12(4425.158mil,4215.984mil) Top Layer and
Pad CMP1-12(4425.158mil,4223.465mil) Top Layer
3- I want to place components on both sides of the board but the
software does NOT let me place the components on the bottom layer
although I can see it (as a single layer as well as a multi-layer). I
did tell the software that I would put comonents on both sides when I
used the wizard to create the board. Could anyone let me know what am
I missing here?
I appreciate your help in advance.
Thanks
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