1. Actual requirements:
1.Package: BGA package
2.Pin number: 636pin
3. Spacing: 0.65mm
4. Chip type: Rockchip quad-core CPU series microcontroller RK3288, used in security, industrial control and other fields;
5. Testing requirements: chip functional debugging, programming and mass production
2. Chip characteristics: The chip is mainly a Cortex core with a main frequency of 1.8GHz. Due to the high degree of integration, the speed requirements for each module are very high, so it is important to match the 3GHz performance probe to adapt to chip testing. About For the power supply, the power consumption requirements are not high, but a corresponding heat dissipation structure is required to cope with the heat generated during testing.
3. Demand analysis: First, the chip package size is BGA636, with a pitch of 0.65, and its length, width and height are 19*19*1.0mm respectively. When designing the test socket, the limit frame can be designed according to this size; the main frequency is 1.8GHz. The high-speed cooperation of DDR3+GPU uses a 3Ghz performance probe; due to heat dissipation issues, heat sinks, etc. need to be added; the last thing that needs to be considered is the user's use, which is mainly applied to the RK3288 development board to verify the The complete performance of the chip requires design drawings and confirmation with the user before production.
4. After confirming the design structure of the drawing, production can be strictly carried out according to the drawing. After the product is made, it can be sent to the user for actual board testing.
