Dec 15, 2004 #1 B bulerias1 Member level 2 Joined Jun 8, 2003 Messages 45 Helped 1 Reputation 2 Reaction score 0 Trophy points 1,286 Activity points 288 orcad layout double sidied pcb Hi, how to route a Ground "plan",and the VCC "plan"? Thanks, Bull
Dec 15, 2004 #2 X xirix Full Member level 2 Joined Jun 26, 2001 Messages 123 Helped 3 Reputation 6 Reaction score 1 Trophy points 1,298 Location Romania Activity points 939 You dont have to route GND/power planes. Just connect power pins to those plans using fanout commands.
You dont have to route GND/power planes. Just connect power pins to those plans using fanout commands.
Dec 23, 2004 #3 I Ionut_Buhus Newbie level 4 Joined Dec 21, 2004 Messages 5 Helped 1 Reputation 2 Reaction score 0 Trophy points 1,281 Location Iasi, Romania Activity points 45 You may route a Ground plane using Copper Area or Copper Pour from Obstacle Tool in Orcad Layout.
Dec 23, 2004 #4 V v_kumar Full Member level 5 Joined Jun 2, 2004 Messages 272 Helped 18 Reputation 36 Reaction score 3 Trophy points 1,298 Location India Activity points 1,964 for a double sided pcb try to avoid vias on the power and ground tracks and if in case for routing u have to use, than better dont connect more components througt the single via or the via my get burnded and disconnect.
for a double sided pcb try to avoid vias on the power and ground tracks and if in case for routing u have to use, than better dont connect more components througt the single via or the via my get burnded and disconnect.
Dec 23, 2004 #5 ilker Member level 3 Joined Dec 13, 2004 Messages 58 Helped 3 Reputation 6 Reaction score 1 Trophy points 1,288 Location TURKEY Activity points 445 using protel routing is vey easy first define nets and rules then select strategy and route. thats all
using protel routing is vey easy first define nets and rules then select strategy and route. thats all
Dec 27, 2004 #6 A andy1 Full Member level 2 Joined Jul 24, 2004 Messages 124 Helped 2 Reputation 4 Reaction score 0 Trophy points 1,296 Activity points 1,205 For a two layers pcb, you should have a power and ground grid, much like a chess board. This will reduce the current return path. There is a section in book: High Speed Digital Signal Design that talks about this.
For a two layers pcb, you should have a power and ground grid, much like a chess board. This will reduce the current return path. There is a section in book: High Speed Digital Signal Design that talks about this.
Dec 31, 2004 #7 F FPGAs Member level 1 Joined Dec 22, 2004 Messages 41 Helped 3 Reputation 6 Reaction score 3 Trophy points 1,288 Location Shanghai, China Activity points 306 the "VCC" on the top and the ''GND" on the bottom.
Dec 31, 2004 #8 Kevin Member level 1 Joined Nov 25, 2001 Messages 40 Helped 4 Reputation 8 Reaction score 1 Trophy points 1,288 Activity points 168 I think GND need split polygon in top and bot layer vcc need u add line of line by u manul route.
Jan 6, 2005 #9 C crenyen Member level 4 Joined Sep 16, 2004 Messages 69 Helped 1 Reputation 2 Reaction score 1 Trophy points 1,288 Activity points 488 Try to make ground on bottom and VCC on TOP layer. Keep in mind that you need to use star topology to distribute POWER or ground to each element.
Try to make ground on bottom and VCC on TOP layer. Keep in mind that you need to use star topology to distribute POWER or ground to each element.