Zone properties configuration in PCB Design - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to set the zone fill type to solid.

PCB Design

zone.FillType = [1]

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

ANone

BHatched

CSolid

DGradient

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing a fill type that creates patterns instead of solid fill.

The fill type Solid ensures the zone is completely filled.

2fill in blank

medium

Complete the code to set the zone clearance to 0.2 mm.

PCB Design

zone.Clearance = [1]

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

A0.5

B0.1

C1.0

D0.2

Attempts:

3 left

💡 Hint

Common Mistakes

Using too large or too small clearance values that affect design rules.

Setting clearance to 0.2 mm ensures proper spacing around the zone.

3fill in blank

hard

Fix the error in the code to correctly set the zone layer to 'TopLayer'.

PCB Design

zone.Layer = [1]

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

Atoplayer

B"TopLayer"

CTopLayer

D'TopLayer'

Attempts:

3 left

💡 Hint

Common Mistakes

Using unquoted names or single quotes which may cause errors.

The layer name must be a string with double quotes: "TopLayer".

4fill in blank

hard

Fill both blanks to set the zone's thermal relief to enabled and the pad connection to 'Thermal'.

PCB Design

zone.ThermalRelief = [1]
zone.PadConnection = [2]

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

ATrue

BFalse

C"Thermal"

D"Direct"

Attempts:

3 left

💡 Hint

Common Mistakes

Using False for thermal relief or wrong pad connection strings.

Thermal relief is enabled with True and pad connection set to "Thermal".

5fill in blank

hard

Fill all three blanks to configure the zone with a clearance of 0.15, fill type 'Hatched', and layer 'BottomLayer'.

PCB Design

zone.Clearance = [1]
zone.FillType = [2]
zone.Layer = [3]

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

A0.15

B"Hatched"

C"BottomLayer"

D0.25

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up numeric and string types or using wrong values.

Clearance is set to 0.15, fill type to "Hatched", and layer to "BottomLayer".

Practice

1. Which property in a PCB zone configuration determines which electrical net the copper area connects to?

easy

A. Thermal relief

B. Layer selection

C. Clearance

D. Net assignment

Solution

1. Step 1: Understand zone properties

   Zone properties include settings like net assignment, layer, clearance, fill mode, and thermal relief.

2. Step 2: Identify net assignment role

   Net assignment links the copper zone to a specific electrical net, ensuring connectivity.

3. Final Answer:

   Net assignment -> Option D

4. Quick Check:

   Net assignment = Electrical connection [OK]

Hint: Net assignment connects copper to the right electrical net [OK]

Common Mistakes:

• Confusing layer with net assignment
• Thinking clearance sets electrical connection
• Mixing thermal relief with net assignment

2. Which of the following is the correct syntax to set the clearance value to 0.2mm in a zone properties configuration script?

easy

A. Clearance = 0.2mm

B. Clearance = 0.2

C. Clearance = '0.2mm'

D. Clearance: 0.2

Solution

1. Step 1: Understand clearance value format

   Clearance is usually set as a numeric value without units in scripts, assuming default units.

2. Step 2: Identify correct syntax

   Assigning clearance as a number without quotes or units is correct: Clearance = 0.2

3. Final Answer:

   Clearance = 0.2 -> Option B

4. Quick Check:

   Numeric value without units or quotes = Correct [OK]

Hint: Use numeric values without units or quotes for clearance [OK]

Common Mistakes:

• Including units like 'mm' in the value
• Using quotes around numeric values
• Using colon instead of equals sign

3. Given a zone configured with FillMode = "Solid" and ThermalRelief = true, what is the expected behavior of the copper fill?

medium

A. Copper fills solidly with thermal relief connections to pads

B. Copper fills with hatched pattern and no thermal relief

C. Copper fills solidly with no thermal relief

D. Copper fills with hatched pattern and thermal relief

Solution

1. Step 1: Interpret FillMode setting

   FillMode = "Solid" means the copper zone is filled completely without gaps.

2. Step 2: Interpret ThermalRelief setting

   ThermalRelief = true means pads connect to the zone with thermal relief patterns to ease soldering.

3. Final Answer:

   Copper fills solidly with thermal relief connections to pads -> Option A

4. Quick Check:

   Solid fill + thermal relief = Copper fills solidly with thermal relief connections to pads [OK]

Hint: Solid fill + thermal relief = solid copper with thermal pads [OK]

Common Mistakes:

• Confusing hatched fill with solid fill
• Ignoring thermal relief effect
• Assuming thermal relief disables solid fill

4. You wrote the following zone configuration snippet:

Zone {
  Net = "GND"
  Layer = "Top"
  Clearance = 0.15
  FillMode = "Solid"
  ThermalRelief = yes
}

Which line contains an error that will cause the configuration to fail?

medium

A. ThermalRelief = yes

B. Clearance = 0.15

C. FillMode = "Solid"

D. Net = "GND"

Solution

1. Step 1: Check boolean value syntax

   Boolean values like ThermalRelief must be true or false, not yes/no.

2. Step 2: Identify error line

   ThermalRelief = yes is invalid syntax; it should be ThermalRelief = true.

3. Final Answer:

   ThermalRelief = yes -> Option A

4. Quick Check:

   Boolean must be true/false, not yes/no [OK]

Hint: Use true/false for booleans, not yes/no [OK]

Common Mistakes:

• Using quotes around numeric values
• Writing boolean as yes/no instead of true/false
• Missing quotes around string values

5. You need to configure a PCB zone on the bottom layer connected to the power net with a clearance of 0.25mm, hatched fill mode, and thermal relief disabled. Which configuration snippet correctly applies all these settings?

hard

A. Zone {
Net = "Power"
Layer = "Bottom"
Clearance = 0.25mm
FillMode = "Solid"
ThermalRelief = false
}

B. Zone {
Net = Power
Layer = Bottom
Clearance = '0.25mm'
FillMode = Hatched
ThermalRelief = no
}

C. Zone {
Net = "Power"
Layer = "Bottom"
Clearance = 0.25
FillMode = "Hatched"
ThermalRelief = false
}

D. Zone {
Net = "Power"
Layer = "Top"
Clearance = 0.25
FillMode = "Hatched"
ThermalRelief = true
}

Solution

1. Step 1: Check net and layer settings

   Net must be "Power" and Layer must be "Bottom" with quotes as strings.

2. Step 2: Verify clearance and fill mode

   Clearance is numeric 0.25 without units; FillMode is "Hatched" as string.

3. Step 3: Confirm thermal relief setting

   ThermalRelief must be false to disable it.

4. Final Answer:

   Zone { Net = "Power" Layer = "Bottom" Clearance = 0.25 FillMode = "Hatched" ThermalRelief = false } -> Option C

5. Quick Check:

   All settings match requirements exactly [OK]

Hint: Match strings with quotes, booleans true/false, numeric clearance [OK]

Common Mistakes:

• Omitting quotes around strings
• Using units in clearance value
• Setting thermal relief to true when disabled