PCBA Program Burning

• PCBA processing program burning, that is, the process of moving the program into the internal storage space of the chip, generally divided into offline burning and online burning.

Realization method of offline burning for PCBA processing

• Through a variety of adapters compatible with different packages of chips, chip and adapter can be used together to achieve program burning. Adapter itself is a kind of precision fixture, different chip, different packaging needs to choose different adapter.

• The packaging of chips such as Emmc, which is widely used, is developing towards small, planar direction such as BGA and QFN, and the price of adapters for such packages is not low.

• If there is an error during the production test and the production backtracking is carried out for re-correction, the chip needs to be removed from the adapter and burned again according to the prescribed process, which is more time-consuming and costly.During PCBA processing and production, there will be some unexpected situations, such as insufficient temperature resistance height of the circuit board, which will cause chip deformation when the chip is removed, and increase the risk of scrap virtually.

Realization method of on-line burning for PCBA processing

• Online burning is the use of standard communication bus chip, such as USB, SWD, JTAG, UART, etc., the interface is generally fixed, burning the need to connect the foot is also less. Because the interface communication rate is not high, use general wire can complete burning, won't produce high consumption.

• Because the online burning is through the wire connection to the program burning, if the production test found error, can immediately backtrack the error of PCBA, re burning, and do not need to remove the chip. It not only saves production cost, but also increases the efficiency of burning.

•more importantly, now also in the production line automation development, more and more manufacturers add the function such as ICT, FCT has grown testing machine on the production line, using automatic fixtures buffer with the online mode of production can save manual operation to burn phase, strap directly after burning, then delivered the PCBA testing machine test, the whole production process is fully automated, Can greatly improve production efficiency.

• Therefore, in PCBA processing, online burning has significant advantages, and has become one of the important indicators to measure the process accuracy, production efficiency, cost, quality control, scale, capital and other aspects of PCBA manufacturers in the industry.