User Guide

The size of the central SMDs in the upper row can be altered with the
CHANGE SMD command. Since the value 0.8 x 3.4 is not contained in
themenuasstandard,type
change smd0.83.4 ←
onto the command line, then click on the SMD. Drag it with MOVE so
thatitislocatedatthecorrectposition.
The INFO command is helpful for checking the position and properties
ofthesolderpads.
When a SMD is placed (in the Top layer), symbols for solder stop and
solder cream are automatically created in layer 29, tStop, and layer 31,
tCream,respectively.
If the component in the layout is mirrored onto the bottom side, these
are changed to the layers with the corresponding functions, namely 30,
bStop and32, bCream.
SMDs can have special flags (Stop, Cream, Thermals) that can be modi
-
fiedwiththeCHANGEcommand.
Setting the Thermals flag off avoids a thermal symbol for the SMD cop
-
perareas.
CHANGE STOP OFF or CHANGE CREAM OFF prevents EAGLE
from generating a solder stop mask or a cream frame for the SMD auto
-
matically.Seealsohelpfunction.
SMDNames
If no names are visible in the SMD pads, click the Options/Set/Misc
menuandactivatethe Displaypadnames option.
Alternativelyyoucantypethefollowingontothecommandline:
setpad_nameson ←
All the names will be visible once the screen is redrawn (WINDOW
command).
Use the NAME command to adjust the names to match the specifica
-
tionsofthedatasheet.
It is alternatively possible to assign names as the SMDs are being placed,
if the component has a large number of pads with sequential numbers.
Select the SMD command, type in the name of the first SMD, e.g. '1',
and place the pads in the correct sequence. The single quote marks must
be entered on the command line. See also the section on Names and
AutomaticNaming onpage 73.
You can also combine several statements on the command line, for
example:
smd0.82'1' ←
A SMD of 0.8 mm x 2.0 mm and with the name 1 is now attached to the
mousecursor.
178
EAGLEManual