Chapter 4 Working with Parts
© National Instruments Corporation 4-33 NI Ultiboard User Manual
Use the Thermal Relief tab to choose what type of thermal relief the pin
will use when connecting to a copper area or power plane.
1. Select the desired thermal relief in the Type box.
2. Select the desired width of the spokes in the thermal relief from the
Spoke Width drop-down list.
Viewing and Editing SMT Pin Properties
Complete the following steps to edit SMT (Surface Mount Technology)
properties:
1. Select the desired SMT pin and select Edit»Properties.
2. The SMT Pin Properties dialog box appears, consisiting of five tabs:
Attributes, General, Pad, Thermal Relief, and Pin Neck.
To edit an SMT pin’s attributes, use the Attributes tab. Refer to the
Attributes section for more information.
To edit an SMT pin’s display style, use the following options in the
General tab:
•X—The x-axis coordinate.
•Y—The y-axis coordinate.
•Net—The net this SMT pin is on (read-only)
•Angle (degrees)—The angle for the pin.
•Board side—Select the Top or Bottom radio button to set the side of
the board on which the SMT pin resides.
•Units—The unit of measurement.
•To Trace—The minimum space between the SMT pin and any trace.
Use the Pad tab to control the Shape and size of the through hole pin. The
Pad Preview on this tab shows the SMT pin as it was created, the Selection
Preview shows how the SMT pin appears on the workspace.
Use the Thermal Relief tab to choose what type of thermal relief the SMT
pad will use when connecting to a copper area or power plane.
1. Select the desired thermal relief in the Type box.
2. Select the desired width of the spokes in the thermal relief from the
Spoke Width drop-down list.
Use the Pin Neck tab to enter dimensions for the pin necks.