Memory Slot With Branching Pins For Circuit Layout

Solution Overview

Problem

Conventional memory slot designs on circuit boards face increased complexity and cost due to high trace density when accommodating large memory capacities, particularly with dual in-line memory modules per channel, leading to redundant signal loss and layout difficulties.

Innovation Solution

A memory slot design featuring a slot body with N connecting parts and O branching pins that electrically connect multiple memory cards in parallel, simplifying the circuit layout and reducing trace density by using T-shaped pins with matching impedance branches to connect golden fingers of memory cards.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If two dual in-line memory modules per channel are used to achieve large memory capacity, then memory capacity is improved, but trace density increases leading to signal loss and layout difficulty

Engineering Contradiction:
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

The memory slot is divided into multiple independent connecting parts (first connecting part and second connecting part), each capable of independently connecting to memory cards. This segmentation allows multiple memory cards to be connected through separate physical paths, reducing the complexity of trace routing on the circuit board while maintaining large memory capacity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces a spatial dimension by stacking multiple memory cards vertically at the same memory slot location. Instead of horizontally spreading out multiple memory module connections across the circuit board (which increases trace density), the solution utilizes the vertical dimension to accommodate multiple cards, thereby reducing circuit layout complexity and trace density.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Quantity of substance

If two dual in-line memory modules per channel are used to achieve large memory capacity, then memory capacity is improved, but trace density increases leading to signal loss

Engineering Contradiction:
Core Design Contradiction:
Quantity of substanceVSReliability

Solution Approach 1:

By segmenting the memory slot into multiple independent connecting parts with separate trace paths, the patent reduces trace density in any single path. Lower trace density minimizes signal interference and loss, thereby improving signal quality and reliability while still supporting large memory capacity through multiple cards.

Inventive Principle:
Principle #1Segmentation

3Quantity of substance

If conventional memory slot design is used to accommodate multiple memory cards, then memory capacity is improved, but manufacturing cost increases

Engineering Contradiction:
Core Design Contradiction:
Quantity of substanceVSEase of manufacture

Solution Approach 1:

The memory slot design makes the single slot capable of supporting multiple memory cards through its multiple connecting parts. This multi-functionality allows the system to achieve large memory capacity without adding proportionally more slots or complex circuitry, thereby controlling manufacturing costs while improving capacity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS11289839B2Main board and memory slot thereof
Publication Date: 2022.03.29
  • US11289839B2 patent drawing
  • US11289839B2 patent drawing
  • US11289839B2 patent drawing

AI summary

A memory slot adapted to dispose on a circuit board is provided. The memory slot includes a slot body and a plurality of pins. The slot body includes N connecting parts for configuring to M memory cards. The plurality of pins are disposed in the slot body for electrically connecting the M memory cards to the circuit board. Each pin includes O branches extending to the connecting parts respectively for electrically connecting corresponding golden fingers of the memory cards. Where the N, M and O are greater than or equal to 2. The disclosure further provides a main board with the memory slot.