PCBA Processing Technology and Programming Methods

PCBA processing technology has advanced significantly, playing a vital role in modern intelligent devices. To ensure a circuit board functions as intended, both hardware and software must align seamlessly.

The Process of “Burning” Programs

Program execution through the IC involves a process known as “burning.” This procedure transfers the program into the chip’s internal storage through offline or online burning methods.

Offline Burning

• Compatibility with different packaged chips requires specific adapters for successful program burning.
• Chips like eMMC are moving towards miniaturization, leading to higher adapter costs for BGA and QFN designs.
• Rectifying production test errors may involve chip removal and reprogramming, posing time and cost challenges.

Online Programming

• Utilizes standard communication buses like USB, SWD, JTAG, and UART for efficient programming.
• Errors detected during testing can be traced back to the PCBA, enabling reprogramming without chip disassembly.
• Automation integration with ICT, FCT, and testing machines streamlines programming, enhancing production efficiency.

Advantages of Online Programming

Online programming offers precise process evaluation, improved production efficiency, cost-effectiveness, quality control, scalability, and enhanced financial investment for PCBA manufacturers.