Allegro PCB design experience

Allegro PCB design experience

1. When components are encapsulated, what is the pin number defined for a pad without an electrical connection?
Answer: when placing a pad, select Mechanical.

2. How to add tears in allegro?
A: You must first open all the cabling layers and execute the command route-> gloss-> parameters .., in the displayed dialog box, click pad and T connection fillet, click the square on the left, and click circular pads, pins, vias, and T connections. /OK/GLOSS.
Note: whether to add or delete a tear, you must first open all the cabling layers. Otherwise, the cabling layers that are not opened will not be executed.

3. (1) it is best to use an arrow of the 1x0. 3 size for dimension labeling. It is set:
Arrow-> 3 point
Head length: 1.0
Head width: 0.3
(2) set the dimension Text to Text block: 3
Arrow settings


Text Size settings

4. Q: What shortcut keys are used for switching the Allegro layer?
Switch with "-" "+!

5. How to COPY wireframes? Is there a way to COPY the lines of Package Geometry-> silkscreen_top to Package Geometry-> Assembly_top?
Select copy, click the silkscreen box in the dot, drag the copied box from the original box, and then change to assembly. The assembly box mov is returned to the original box position to complete the copy.

6. What are the differences between Display_Top layer, Assemble_Top layer, and Silkscreen_Top layer?

7. Can I replace the pad when packaging components? Do not delete and then put it. For example, replace smd91x17. pad with smd91x16b. pad.
→

Click Replace.

8. How do I set the three types of cables, namely, differential line, snake line, and other long lines? How is it drawn?

9. The Blind hole (Blind vias) is to connect several layers of internal PCB with the surface PCB, do not need to penetrate the whole board, the Buried hole (Buried vias) is connected only to the internal PCB.

10. Can I only disable copper-clad copper and retain the strip (etch )?
Yes! Click uers preference… in the setup menu... (Parameter settings), select the shape option on the Right To hook no_shape_filt.

11. How can I change the pad Number of the component?
Open the pin_number layer and use Edit --> text to modify it.

12. How can I rotate the entire PCB 90 degrees in allegro?

1. Select the MOVE command (Select User Pick in the Point under Options, and check all the items you want in Find)
2. Right-click the selected Temp Group
3. Select the entire board (you can also select one or more)
4. Right-click and select Complete
5. Click one point as User Pick
6. Right-click and select rotate.

You can rotate it.

13. In Allegro, how do I set different colors for different networks?
Hilight --- Select the color of options in the control bar next to it, check net in the finder, enter the name of the network to be highlighted, or click the flying line network directly.

14. Re-number the repair schematic
Tools-annotate...

15. How can I divide a component into two parts? When capture draws a component library, how can it be divided into Part1 and Part2?
Click Next part under the menu view!
There is a package type option under the new library.
Homogeneous: similar.
Heterogeneous: different classes, heterogeneous.
If you want to make two identical parts, select the first item and set parts per PKG. change to 2. if you want to make two different parts, select the second item and set parts per PKG. change to 2.

16. How can I update the device in the schematic diagram after it is modified in the library )?

17. In Allegro, how do I lock components?
Click the component to be locked.

18. In Allegro, can I display the network flying line when I move components when the network flying line is closed?


As long as the two are not checked, the flying line is displayed, and then the flying line can be displayed when moving.

1. When components are encapsulated, what is the pin number defined for a pad without an electrical connection?
Answer: when placing a pad, select mechanical.

2. How to add tears in Allegro?
A: You must first open all the cabling layers and execute the command route-> gloss-> parameters .., in the displayed dialog box, click pad and T connection fillet, click the square on the left, and click circular pads, pins, vias, and t connections. /OK/gloss.
Note: whether to add or delete a tear, you must first open all the cabling layers. Otherwise, the cabling layers that are not opened will not be executed.

3. (1) it is best to use an arrow of the 1x0. 3 size for dimension labeling. It is set:
Arrow-> 3 point
Head length: 1.0
Head width: 0.3
(2) set the dimension Text to Text block: 3
Arrow settings


Text Size settings

4. Q: What shortcut keys are used for switching the allegro layer?
Switch with "-" "+!

5. How to copy wireframes? Is there a way to copy the lines of package geometry-> silkscreen_top to package geometry-> assembly_top?
Select copy, click the silkscreen box in the dot, drag the copied box from the original box, and then change to assembly. The assembly box mov is returned to the original box position to complete the copy.

6. What are the differences between Display_Top layer, Assemble_Top layer, and Silkscreen_Top layer?

7. Can I replace the pad when packaging components? Do not delete and then put it. For example, replace smd91x17. pad with smd91x16b. pad.
→

Click Replace.

8. How do I set the three types of cables, namely, differential line, snake line, and other long lines? How is it drawn?

9. The Blind hole (Blind vias) is to connect several layers of internal PCB with the surface PCB, do not need to penetrate the whole board, the Buried hole (Buried vias) is connected only to the internal PCB.

10. Can I only disable copper-clad copper and retain the strip (etch )?
Yes! Click Uers Preference… in the SETUP menu... (Parameter settings), select the SHAPE option on the Right To hook no_shape_filt.

11. How can I change the pad Number of the component?
Open the Pin_Number layer and use Edit --> Text to modify it.

12. How can I rotate the entire PCB 90 degrees in Allegro?

1. Select the move command (Select User pick in the point under options, and check all the items you want in find)
2. Right-click the selected temp Group
3. Select the entire board (you can also select one or more)
4. Right-click and select complete
5. Click one point as user pick
6. Right-click and select rotate.

You can rotate it.

13. In Allegro, how do I set different colors for different networks?
Hilight --- Select the color of options in the control bar next to it, check net in the finder, enter the name of the network to be highlighted, or click the flying line network directly.

14. Re-number the repair schematic
Tools-Annotate...

15. How can I divide a component into two parts? When Capture draws a component library, how can it be divided into part1 and part2?
Click Next part under the menu View!
There is a package type option under the new library.
Homogeneous: similar.
Heterogeneous: different classes, heterogeneous.
If you want to make two identical parts, select the first item and set parts per PKG. change to 2. if you want to make two different parts, select the second item and set parts per PKG. change to 2.

16. How can I update the device in the schematic diagram after it is modified in the library )?

17. In allegro, how do I lock components?
Click the component to be locked.

18. In allegro, can I display the network flying line when I move components when the network flying line is closed?


As long as the two are not checked, the flying line is displayed, and then the flying line can be displayed when moving.