Reliable PCB Electrical Testing Services

A PCB electrical test verifies that the circuit board’s conductive paths match the intended design. It typically checks continuity, isolation, opens, shorts, resistance, and net-to-net connectivity. For assembled boards, functional testing can also confirm that the PCBA powers on, communicates correctly, and performs required operations according to customer specifications.

The 3W rule is a PCB layout guideline used to reduce crosstalk between signal traces. It recommends spacing adjacent traces at least three times the trace width apart, especially for sensitive or high-speed signals. While it is a design rule rather than a test method, following it can improve signal integrity and reduce failures during validation.

Yes. FX PCB lists 100% electrical testing on every bare board as a unique service advantage. This helps verify circuit continuity and isolation before assembly, reducing the risk of building components onto defective boards. For PCB assemblies, additional functional test procedures and fixtures can be developed based on your product requirements.

AOI uses optical inspection to identify visible soldering, placement, polarity, and component issues. X-Ray inspection helps examine hidden joints, BGAs, and dense assemblies that cannot be fully checked visually. Functional testing verifies real electrical performance by powering the board and checking required outputs, communication, configuration, or operating behavior.

Yes. FX PCB can develop functional test jigs, custom test procedures, and fixtures according to customer specifications. These fixtures support repeatable testing for prototypes, pilot builds, and production quantities. A dedicated fixture is especially useful when boards require consistent power checks, programming, signal measurement, or performance validation.

FX PCB supports quality through ISO9001, ISO14001, ISO13485, IPC-A-610 Class 2/3, RoHS, REACH, and UL-related compliance capabilities. IPC-A-610 Class 2/3 standards help define workmanship expectations for assembled boards, while RoHS and REACH support global market access for products requiring restricted-substance compliance.

Yes. Prototype PCB Assembly and validation are core parts of FX PCB’s offering. Small-batch assemblies can be built to your Gerber files and BOM, then inspected and tested for performance. This helps engineering teams identify design, sourcing, or assembly issues before committing to low-volume or high-volume production.

Turnaround depends on board complexity, component availability, test requirements, and production quantity. FX PCB offers fast-turnaround prototyping, with boards assembled from 24 hours once all parts are available, and standard delivery for assembly often listed around 1–2 weeks. Expedited orders may be possible when schedules are critical.