Parallel Functional Test for Panelized PCBAs

Product-Specific Functional Test

for High-Speed Production

CheckSum PFT Brings Parallel Functional Test Earlier into the Production Process with Product-Specific Test Modules Designed Around the Actual Requirements of the Board. Instead of Pushing More Load to End-of-Line Test, PFT Supports a Parallel Strategy that Improves Throughput, Reduces Handling, and Helps Maintain Process Visibility Closer to SMT.

Product-Specific Functional Test Modules Built Around the Application
Parallel Test Strategy That Moves More Verification Earlier in the Process
Reduced End-of-Line Burden With Higher-Throughput Functional Test Architecture

Reduce the End-of-Line Burden

Traditional Functional Test Strategies Often Push Verification to the End of the Line, Where Test Time, Labor, and Rework Become More Expensive and More Disruptive. CheckSum PFT Changes That Model by Applying Functional Test in Parallel and Earlier in the Process, Helping Reduce Bottlenecks, While Improving Visibility into Product Quality.

The Result is a More Efficient Overall Test Flow with Fewer Downstream Constraints, Lower End-of-Line Burden, and Earlier Detection of Functional Problems Before Additional Value is Added.

Functionally Test the Entire Panel in Parallel
Reduce Required End-of-Line Labor and Equipment
Improve Quality by Identifying Issues Earlier, Before They Become Bottlenecks

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Functional Test Modules

Matched to the Application

PFT Modules are Selected to Support the Specific Functional Requirements of the Product, From Power and Measurement to Communications, Diagnostics, and Product-Specific Verification. This Modular Approach Helps Create a Turnkey Solution That Fits the Application While Reducing Cost and Complexity in the Production Test Process.

Because the Modules are Selected Around the Actual Product Requirement, PFT is Not a One-Size-Fits-All Functional Test Approach. It is a Practical Way to Move Meaningful Test Coverage Earlier, Reduce Dependence on Slower End-of-Line Strategies, and Build a More Efficient Production Test Flow That Supports Throughput, Quality, and Lower Total Test Cost.

Product-Specific Module Strategy Aligned to the Real Test Requirement
Earlier Functional Coverage to Reduce End-of-Line Burden
Improved Throughput Through Parallel Test Architecture
Better Process Visibility with Earlier Fault Detection
Lower Overall Production Test Cost Through a More Efficient Test Flow

Multi-Core: 1 / 2 / 4 boards in parallel per cycle.
High-speed: solid-state relays for fastest execution.
Full coverage: analog + digital + powered-on (advanced tests).

Faster test drives more value, enabling ISP + PFT in one test cell.

High-speed ISP: programs at the speed of the device.
Easy-to-use software: job integrity, process control, and reporting.
Security: encryption + serialization for advanced cybersecurity.

Turnkey and production-ready--engineered to integrate seamlessly with ICT + PFT in one test cell.

Parallel panel-level FT: test the entire panel in parallel — 5–10× faster.
Project-by-project: designed to your unique application and test spec.
Scalable + modular: seamless integration with CheckSum’s test software.

High-speed panel-level functional testing enables more coverage early, reducing EOL load and scrap risk.

Dual-panel automation: high-speed, fully automated test handling with two stop positions.
Dual-panel flexibility: run single, dual-panel parallel, or dual-panel sequential test flows.
One platform for Parallel Test: supports CheckSum’s ICT + MultiWriter + PFT.

Unique dual-panel handling doubles throughput, dramatically reducing total cost of test while enabling enhanced test coverage earlier in the process.