Heat spreader apparatus with magnetic attachments on printed wiring board assemblies, related methods and electronic systems
AssigneeMicron Technology, Inc.
InventorsCharles E. Siko, Kaleb A. Wilson, Bradley R. Bitz
Life of this patent
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Abstract
A printed wiring board assembly is disclosed that includes a printed wiring board with a first side and a second side opposite first side. Magnet structures are in physical contact with the printed wiring board and a microelectronic device component is coupled to the first side of the printed wiring board. A heat spreader overlies and is in thermal communication with the microelectronic device component, and posts are coupled to the heat spreader and horizontally neighbor the microelectronic device component, where the posts are in magnetic communication with the magnet structures. Related methods and electronic systems are also disclosed.
Claims21
A printed wiring board assembly, comprising:
- a printed wiring board including a first side and a second side opposite the first side;
- magnet structures in direct physical contact with the printed wiring board;
- a microelectronic device component coupled to the first side of the printed wiring board;
- a heat spreader overlying and in thermal communication with the microelectronic device component;
- and
- posts comprising ferromagnetic material coupled to the heat spreader and horizontally neighboring the microelectronic device component, the posts embedded within the heat spreader, extending toward the printed wiring board, and in magnetic communication with the magnet structures.
A method of forming a printed wiring board assembly, comprising:
- bringing a heat spreader having posts embedded therein into registration proximity with a printed wiring board having magnet structures in direct physical contact therewith, the posts comprising ferromagnetic material and extending toward the printed wiring board;
- and
- autogenously magnetically aligning and coupling the posts with the magnet structures.
An electronic system, comprising:
- an input device;
- an output device;
- a processor device operably coupled to the input device and the output device;
- a memory device operably coupled to the processor device;
- and
- a printed wiring board assembly comprising:
- a printed wiring board underlying and coupled the processor device;
- magnet structures in direct physical contact with the printed wiring board;
- a heat spreader overlying and thermally coupled to the processor device;
- and
- posts comprising ferromagnetic material embedded within the heat spreader and extending from the heat spreader toward the printed wiring board, the heat spreader coupled to the printed wiring board by way of ferromagnetic attraction between the magnet structures and the posts.
Dependencies are inferred from the claim text.