Capacitor Holder for Semiconductor Storage Device
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Solution Overview
Problem
The challenge is to mount a capacitor compactly and at low cost on a printed circuit board in a semiconductor storage device, where the capacitor is larger and heavier than the nonvolatile memory and memory controller.
Innovation Solution
A semiconductor storage device design that includes a printed circuit board with a nonvolatile memory, a memory controller, and a capacitor, where the capacitor is held by a holder with arm portions that sandwich the capacitor from both sides, allowing for compact mounting and flexibility in accommodating capacitors of various sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a capacitor is mounted on the printed circuit board, then power supply function is achieved, but the device size and weight increase
Solution Approach 1:
The patent transitions from planar mounting to three-dimensional mounting by positioning the capacitor above the printed circuit board surface and supporting it with holder arms extending from the board edges, effectively utilizing vertical space to reduce footprint and weight impact
2Reliability
If a capacitor is mounted on the printed circuit board, then power supply function is achieved, but the mounting area increases
Solution Approach 1:
The capacitor is mounted in the vertical dimension rather than occupying horizontal board area, with holder arms extending from board edges to support the capacitor above the board surface, thereby preserving valuable planar mounting space
Solution Approach 2:
Holder arms serve as intermediary structures that connect the printed circuit board to the capacitor, enabling the capacitor to be supported in space above the board without requiring direct large-area mounting on the board surface itself
Data Source
AI summary
A semiconductor storage device includes: a printed circuit board; a nonvolatile memory disposed on the printed circuit board; a memory controller disposed on the printed circuit board and configured to operatively control nonvolatile memory; a capacitor disposed on the printed circuit board and configured to supply power to the nonvolatile memory and the memory controller; and at least one holder that holds the capacitor at an end portion of the printed circuit board. The holder includes a connecting portion connected to the end portion of the printed circuit board, and a pair of arm portions extending from the connecting portion toward an outside of the printed circuit board and configured to sandwich a body portion of the capacitor from both sides in a thickness direction of the printed circuit board.