1. Actual requirements:
1.Package: BGA package
2.Pin number: 256pin
3. Spacing: 1.0mm
4. Chip type: CPU
5. Testing requirements: chip functional debugging, mass production and terminal program burning
2. Demand analysis: This is a CPU BGA256 test fixture for an electronic game console (desktop model). The fixture is mainly based on the motherboard of the game console. On this basis, a chip test socket is added, and each probe corresponds accurately The position in contact with the motherboard pad is supported by the external test socket structure and fixed structure. At the same time, the corresponding metal external structure is assisted in the design so that the heat of the chip can be conducted to the panel through the cover of the test socket, and through the large area mechanism of the panel To dissipate heat, a variable-speed fan is also added to simultaneously improve the heat dissipation efficiency according to the working conditions of the host; users can debug, perform performance tests, and life tests on the CPU chip placed in the fixture through the host's functional interface.
3. Production: The structure of this test fixture is based on the motherboard + aluminum alloy panel + precise positioning BGA256 test socket + auxiliary cooling fan. The chip of BGA256 is BGA256, 1.0 pitch, 17*17 chip. This chip is compatible with FPGA The chip has similar functions, has many I/O ports, and supports multiple expansion functions. Its core frequency is not high, so it is suitable for game console configurations with few user operations. The performance matching requirements of the test socket are not high, so the design of the test socket is also difficult. Not big. The only difficulty is that the motherboard has too many expansions, and the design of the air avoidance is more difficult. There are many air avoidance positions that need to be considered, so the product design is more difficult.
4. After the production is completed, you need to power on and test to see if the system is working properly.
