Route planning for two-layer board in PCB Design - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to select the correct layer for routing on a two-layer PCB.

PCB Design

route_layer = '[1]'

Drag options to blanks, or click blank then click option'

AInner1

BTop

CBottom

DInner2

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing inner layers which do not exist on a two-layer board.

Selecting only the Bottom layer without considering the Top.

On a two-layer PCB, routing is done on the Top and Bottom layers. Here, we select the Top layer for routing.

2fill in blank

medium

Complete the code to define the via type used to connect Top and Bottom layers.

PCB Design

via_type = '[1]'

Drag options to blanks, or click blank then click option'

AMicrovia

BBlind via

CBuried via

DThrough-hole via

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing blind or buried vias which are used in multi-layer boards.

Selecting microvias which are typically for HDI boards.

Through-hole vias connect the Top and Bottom layers on a two-layer PCB, passing through the entire board.

3fill in blank

hard

Fix the error in the routing direction assignment for the Bottom layer.

PCB Design

if layer == 'Bottom':
    routing_direction = '[1]'

Drag options to blanks, or click blank then click option'

AVertical

BHorizontal

CDiagonal

DRandom

Attempts:

3 left

💡 Hint

Common Mistakes

Assigning horizontal routing on both layers causing crossing.

Using diagonal or random routing which is not standard practice.

On a two-layer board, the Bottom layer routing is typically vertical to avoid crossing with the Top layer's horizontal routing.

4fill in blank

hard

Fill both blanks to define the routing directions for Top and Bottom layers.

PCB Design

routing_directions = {
    'Top': '[1]',
    'Bottom': '[2]'
}

Drag options to blanks, or click blank then click option'

AHorizontal

BVertical

CDiagonal

DRandom

Attempts:

3 left

💡 Hint

Common Mistakes

Assigning the same direction to both layers.

Using diagonal or random directions which complicate routing.

Top layer routes horizontally and Bottom layer routes vertically to minimize crossing and interference.

5fill in blank

hard

Fill all three blanks to create a dictionary mapping layers to their routing directions and via type.

PCB Design

routing_plan = {
    'Top': '[1]',
    'Bottom': '[2]',
    'Via': '[3]'
}

Drag options to blanks, or click blank then click option'

AHorizontal

BVertical

CThrough-hole via

DBlind via

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up via types or routing directions.

Using blind vias which are not applicable here.

The Top layer routes horizontally, Bottom vertically, and vias are through-hole to connect both layers.