In PCB manufacturing, Design Rule Check (DRC) is an important verification process that is designed to ensure that the PCB design meets specific manufacturing specifications and requirements. Here are the properties and roles of DRC:

Performance:
Automated Checking:

DRC is executed through automated software that can quickly check for potential problems in the design.
Broad Rule Coverage:

Covers everything from electrical performance to physical layout, such as line widths, line spacing, pad sizes, through-hole settings, and more.
Real-time Feedback:

Provides real-time feedback during the design process to help designers correct problems in a timely manner.
Detailed Report Generation:

Upon completion of the inspection, it is possible to generate a detailed report listing all the offending items along with their location and nature.
Rule Configurability:

Rules for DRC inspections can be configured and adjusted according to manufacturing plant requirements and design goals.
Multi-layer Board Checking Capability:

Ability to handle multi-layer PCB designs, checking layer alignment, layer connections, etc.
Conflict and Violation Recognition:

Ability to identify and report conflicts and violations in the design that may affect manufacturing or circuit performance.
Role:
Ensure Manufacturability:

Ensure that the design meets the requirements of the manufacturing process and improves the manufacturing yield of the product.
Improve Design Quality:

Improves PCB reliability and performance by identifying and correcting design issues in advance.
Reduce Design Iteration:

Save time and costs by reducing rework and design iterations due to design violations.
Ensure Electrical Performance:

Check the correctness of electrical connections to prevent electrical problems such as short circuits and open circuits.
Optimize Signal Integrity:

Optimize signaling performance by checking rules such as impedance continuity and differential alignment.
Enhance Thermal Management:

Ensure that thermally sensitive areas are designed to meet thermal requirements and prevent overheating problems.
Compliance with Industry Standards:

Ensure designs follow standards and specifications set by industry associations such as IPC.
Assisted Design Decisions:

Provide design verification data to help designers make more rational design decisions.
Documentation and tracking:

Records all violations and exemptions for easy tracking and auditing.
Output Job Validation:

Performs final DRC verification to ensure the design is error-free before generating final production files.
DRC is an integral step in the PCB design and manufacturing process that reduces risk, improves efficiency and ensures the quality of the final product by ensuring that the design meets specific manufacturing and performance criteria.