Semiconductor Fuse Array Storage Circuit Design

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Solution Overview

Problem

Existing semiconductor technologies face inefficiencies in storing and managing fuse options within semiconductor devices, requiring external retrieval each time, which slows down operations and increases storage area requirements.

Innovation Solution

A storage circuit design that includes a fuse array, code counter, and storage blocks, capable of efficiently and quickly storing fuse status signals by using an operation clock to toggle and count selection codes, allowing for sequential storage of fuse options in a preset order.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If fuse options are stored in external storage and retrieved each time, then storage area is reduced, but operation speed decreases due to repeated external retrieval

Engineering Contradiction:
Improvestorage areaVSAvoidoperation speed
Core Design Contradiction:
Area of stationary objectVSSpeed

Solution Approach 1:

The patent applies preliminary action by pre-storing fuse option data in internal storage blocks before it is needed. The fuse status signals are captured and stored in advance in the storage blocks, so that when preset operations need to be performed, the data is already available internally without requiring external retrieval, thus maintaining high operation speed while using minimal internal storage area.

Inventive Principle:
Principle #10Preliminary action

2Productivity

If fuse status signals are stored sequentially using code counter and storage blocks, then storage efficiency improves, but device complexity increases

Engineering Contradiction:
Improvestorage efficiencyVSAvoiddevice complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent merges multiple functions into the storage blocks, which simultaneously serve as both the storage medium for fuse status signals and the sequential access mechanism. The code counter is integrated with the storage blocks to automatically generate selection signals, combining counting, selecting, and storing functions into a unified structure that improves storage efficiency without proportionally increasing device complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The storage circuit is designed to be self-service through the automatic operation of the code counter that sequentially selects and stores fuse status signals without external intervention. The system automatically manages the storage process by counting and selecting signals in preset order, reducing the need for external control logic and simplifying the overall device architecture.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS9153339B2Semiconductor device and semiconductor memory device
Publication Date: 2015.10.06 SK HYNIX INC
  • US9153339B2 patent drawing
  • US9153339B2 patent drawing
  • US9153339B2 patent drawing

AI summary

A semiconductor device includes a fuse array having a plurality of fuse sets suitable for outputting a plurality of fuse status signals having different levels according to whether fuses of the plurality of fuse sets are cut or not, a code counter suitable for counting selection codes in a preset order in response to an enable signal and an operation clock, and storage blocks suitable for receiving and storing the plurality of fuse status signals in a preset order in response to the selection codes.