ICT Fixture: Precise and Automated PCBA Testing Solutions

In the electronic component manufacturing and assembly process, an ICT (In-Circuit Test) Fixture is an essential testing tool. It enables rapid detection of assembly defects on printed circuit board assemblies (PCBAs), including short circuits, open circuits, incorrect component values (resistors, capacitors, and inductors), and incorrectly oriented ICs before products are released for shipment.

At Careerviet, we specialize in the design, precision machining, and manufacturing of high-quality ICT fixtures that meet the stringent requirements of major electronics manufacturing facilities.

1. Types of ICT Fixtures 

To accommodate different production scales and testing systems, Careerviet provides the following solutions:

• Vacuum ICT Fixture: Uses vacuum pressure to press the PCB against the test pin array, ensuring reliable electrical contact. Offers high precision and is ideal for densely populated circuit boards.

• Pneumatic / Mechanical ICT Fixture: Uses pneumatic cylinders or manual lever mechanisms to apply pressure to the PCB. Offers high durability, cost-effectiveness, and easy maintenance.

• Dual-Stage ICT Fixture (Two-Stage Fixture): Integrates both in-circuit testing (ICT) and functional testing (FCT) into a single fixture, helping reduce testing time and save production floor space.

2. Key Advantages of Careerviet ICT Fixtures

• High-Precision CNC Machining: We use advanced CNC machines in our workshop to mill fixture plates made from Bakelite, anti-static acrylic (Mica), and G10/FR4 materials. Precisely positioned test-pin holes ensure accurate alignment while preventing PCB warping and surface scratches.

• Premium-Quality Test Pins: Our test probes and probe sockets are sourced from reputable brands such as Ingun and QA, offering a service life of up to hundreds of thousands of test cycles and reliable, stable electrical contact.

• Optimized Design Using Specialized Software: Our experienced engineering team analyzes CAD and Gerber files to optimize test probe placement, avoid sensitive areas on the PCB, and minimize the risk of false-pass results.

• Responsive Technical Support: We are committed to on-time delivery and provide on-site fixture adjustment, maintenance, and periodic test-pin replacement at our customers’ factories.