Semiconductor Storage Terminal Wiring Inversion
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Solution Overview
Problem
Conventional semiconductor storage devices face challenges in design configurations that lead to inconvenient electrical interactions and signal deterioration due to the exposure of terminals, resulting in reduced signal intensity and efficiency.
Innovation Solution
The semiconductor storage device incorporates a housing with specifically arranged terminals and signal wiring, where the signal wiring extends from the first end of the terminal closer to the contact position with the host device, reducing the open-circuited stub area and preventing resonance phenomena, thereby enhancing signal integrity and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If signal wiring extends from the first end of the terminal (farther from contact position), then the open-circuited stub area is reduced and resonance phenomena are prevented, but the wiring path length increases
Solution Approach 1:
Instead of extending the signal wiring from the second end of the terminal (closer to contact position) as in conventional designs, the patent inverts the approach by extending the wiring from the first end (farther from contact position). This inversion reduces the open-circuited stub area between the contact position and the terminal, preventing resonance phenomena and improving signal integrity despite the longer wiring path.
2Ease of operation
If terminals are exposed to the surface of the housing, then electrical connection with host device is enabled, but signal deterioration occurs due to resonance phenomena
Solution Approach 1:
The patent applies local quality by making the terminal structure asymmetric, with different ends having different functions. The first end is designed for wiring connection while the second end is optimized for contact with the host device. This local differentiation allows the terminal to simultaneously achieve good electrical connection and minimize signal deterioration by controlling the wiring extension location.
Data Source
AI summary
According to one embodiment, a semiconductor storage device includes a housing, a plurality of terminals, signal terminals, a controller, signal wiring, and a memory. The housing has a first face and a second face opposite to the first face. The plurality of terminals is exposed to the first face, extends in a first direction, and is spaced apart in a second direction intersecting with the first direction. A signal terminal included in the plurality of terminals has a first end in the first direction, and a second end opposite to the first end in the first direction, the second end being closer to a contact position with a socket contact than the first end. The controller is located in the housing. The signal wiring extends from the first end in the housing and electrically connects the first end and the controller. The memory is electrically connected to the controller in the housing.