Turnkey Module Source Schematic Handovers before NRE Payment Authorization
Schematic handovers before NRE release require full native CAD project files, netlists, and manufacturing data verified on the bench prior to invoice authorization.
Copper Pour Rule Audit
Meaning
Electronic design rules ensure that large conductive regions adhere to defined clearance and connectivity parameters. A copper pour rule audit examines the digital layout of a printed circuit board to verify that ground and power planes are properly implemented. This process prevents the creation of unintended antennas or resistive bottlenecks that could degrade performance.
It also checks that thermal relief pads are correctly placed to allow for reliable soldering.
Geometric Verification
Calculations of the spacing between the copper region and adjacent traces ensure that no electrical shorts occur. During a copper pour rule audit, the software checks every edge of the polygon against the design rules of the board. This verification includes checking the narrowest points of the pour to ensure they meet the minimum width required by the manufacturer.
Correct geometry prevents fabrication errors that would lead to a high scrap rate at the factory.
Electrical Continuity
Connection points between the large copper area and the rest of the circuit are inspected for completeness. The copper pour rule audit identifies any isolated islands of copper that are not tied to a specific net. These floating regions can cause unpredictable capacitive effects and electromagnetic interference if they are not grounded.
Ensuring every part of the pour is active maintains the integrity of the power distribution network.
Manufacturing Constraint
Specific settings for the expansion and clearance of the copper affect the final yield of the production run. A copper pour rule audit confirms that the layout accommodates the chemical etching tolerances of the chosen fabrication house.