Today are going to discuss how to use Design Force rule editor to calculate track impedance. Calculate the track width value from the characteristic impedance and layer configuration by using a field solver. In...
Design Force can help you verify your design before you send it out to manufacture. Before running any signal integrity analysis in Design Force, you must assign device models to the pins in your components using the Constraint Browser.
When a user would like to add a member to an existing skew group in CR-8000 Design Force Constraint Browser, you do not have to delete and recreate the group. You can simply edit the members using Edit Skew Group.
CR-8000’s Design Force Dragon EX tool can be used to fanout BGAs. Simply draw a Dragon area around your BGA. Then select the Dragon area and create a strategy to fanout the pads of your BGA. You can create steps to fanous pads based on signal names. The ground pins can be fanned out to the ground plane layer using a specified via. You can control the layers used, fanout direction, and vias.
Creating pin pairs in the Constraint Browser is fine for one or two nets at a time, but if you want to create pin pairs for a whole design, I recommend using an easy, single-step macro.
Pin pairs of nets other than power/ground nets can be created using a macro command. Pin pairs are needed in the Constraint Browser to obtain values such as “measured route length” and “Manhattan ratio.”