Integrated Circuit Assembly for High-Frequency PCB Testing
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Solution Overview
Problem
Existing integrated circuit assemblies require the entire main board to be detached from a personal computer for replacing a malfunctioning DRAM IC, causing inconvenience and are not suitable for compact devices due to the thickness of memory-mounting sockets.
Innovation Solution
An integrated circuit assembly comprising a main board unit and a daughter board unit with electrical contacts and conductive terminals, allowing for detachable and surface-mountable connections to an external circuit board, enabling easy replacement and reduced thickness for compact devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If a memory-mounting socket is used to mount DRAM ICs on a printed circuit board, then the DRAM ICs can be easily replaced, but the thickness becomes relatively large (e.g., 18 mm for DIP memory)
Solution Approach 1:
The invention divides the memory module into two separate boards: a main board that remains permanently installed in the device, and a daughter board that can be easily detached and replaced. The DRAM ICs are mounted on the daughter board, which connects to the main board through a connector. This segmentation allows the memory module to be thin (suitable for compact devices) while still enabling easy replacement of DRAM ICs by simply detaching the daughter board.
2Ease of repair
If the entire main board is detached to replace a malfunctioning DRAM IC, then the replacement can be performed, but the PC cannot be used during maintenance
Solution Approach 1:
By segmenting the memory module into a main board and a detachable daughter board, the invention enables replacement of malfunctioning DRAM ICs by simply detaching and replacing the daughter board, without needing to detach the entire main board. This significantly reduces maintenance downtime and allows the PC to remain operational during the replacement process.
Solution Approach 2:
The daughter board is pre-assembled with the DRAM ICs mounted on it before being installed in the device. This preliminary assembly allows for easy replacement - when a DRAM IC malfunctions, the entire daughter board can be quickly swapped out without disassembling the main board or other components, minimizing maintenance time.
3Ease of repair
If a daughter board unit with detachable connection is used, then easy replacement is enabled, but the device complexity increases
Solution Approach 1:
The invention uses segmentation to create a modular architecture with a main board and a detachable daughter board. While this does increase structural complexity compared to a fixed mounting, the complexity is localized to the connection interface rather than the entire system. The modular design actually simplifies manufacturing, testing, and maintenance processes, offsetting the increased structural complexity.
Solution Approach 2:
The daughter board design provides multi-functionality: it serves as both a mounting platform for DRAM ICs and a replaceable module for easy maintenance. The universal connector design allows the same daughter board structure to be used with different DRAM IC configurations, reducing overall system complexity through standardization.
Data Source
AI summary
An integrated circuit assembly includes a main board unit mounted fixedly on and connected electrically to an external circuit board, a daughter board unit disposed on and connected detachably to the main board unit, and an integrated circuit device mounted fixedly on and connected electrically to the daughter board unit. When the daughter board unit is connected to the main board unit, the integrated circuit device is connected electrically to the external circuit board via the main board unit and the daughter board unit.