PCB Communication & Stakeholder Relations 3

Question 1

What does the term 'design freeze' communicate to stakeholders in a PCB project?

Accepted Answer

No further schematic or layout changes will be accepted without formal ECO approval

Answer

A design freeze signals that the design is stable and any subsequent changes require formal change control to protect schedule and cost.

Question 2

Which stakeholder group is most impacted if a PCB designer changes a connector from through-hole to SMT without notification?

Accepted Answer

The assembly team and test fixture team

Answer

Assembly processes, soldering profiles, and test fixtures are all connector-type dependent and must be updated when the package style changes.

Question 3

A project manager asks for the current completion percentage of the PCB layout. Which metric is most meaningful to report?

Accepted Answer

Percentage of connections routed vs. total connections (routing completion ratio)

Answer

Routing completion ratio directly reflects how much of the electrical connectivity has been implemented and is the standard progress metric.

Question 4

A safety engineer requests compliance with IPC-2221 creepage and clearance rules. What should the PCB designer do first?

Accepted Answer

Identify the working voltage and pollution degree to determine required spacings before layout

Answer

Creepage and clearance requirements are voltage- and environment-dependent and must be determined before placing high-voltage components.

Question 5

When communicating a design delay to stakeholders, which approach is most professional?

Accepted Answer

Proactively notify stakeholders with the root cause, revised timeline, and mitigation plan

Answer

Proactive communication with a root cause and recovery plan maintains trust and gives stakeholders time to adjust dependent activities.

PCB - Design Practice Test