Design Rule Check (DRC) is a crucial quality control step in making computer chips. Think of it like a spell-checker, but for chip designs. Just as buildings must follow construction codes, chip designs must follow specific rules to ensure they can be manufactured correctly. This checking process makes sure that all the tiny components on a chip are properly spaced and sized, preventing manufacturing problems before they occur. It's often shortened to "DRC" in job descriptions and resumes. Similar terms you might see include "Layout Verification" or "Physical Verification."
Performed Design Rule Check and DRC analysis on 7nm chip designs
Reduced manufacturing errors by 40% through improved Design Rule Check procedures
Led team responsible for DRC tool implementation and verification flow
Typical job title: "Design Verification Engineers"
Also try searching for:
Q: How would you implement a DRC verification strategy for a new semiconductor process?
Expected Answer: A strong answer should discuss creating a comprehensive verification plan, coordinating with manufacturing teams, establishing sign-off criteria, and managing tool selections while considering project timelines and resource constraints.
Q: How do you handle conflicting design rules between different manufacturing requirements?
Expected Answer: Look for answers that demonstrate experience in balancing trade-offs, working with cross-functional teams, and finding practical solutions while maintaining manufacturing quality standards.
Q: What steps do you take when you find a DRC violation?
Expected Answer: Should explain the process of identifying the violation source, communicating with design teams, documenting issues, and verifying fixes while maintaining project schedules.
Q: How do you prioritize different types of design rule checks?
Expected Answer: Should discuss understanding critical vs. non-critical rules, impact on manufacturing yield, and ability to organize verification flow efficiently.
Q: What is a design rule and why are they important?
Expected Answer: Should explain that design rules are manufacturing guidelines that ensure chips can be produced reliably, like minimum spacing or width requirements for chip components.
Q: What basic information do you need before running a DRC?
Expected Answer: Should mention design files, technology rules file, and basic understanding of the manufacturing process being used.