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US 10,640,892 B2Granted
Incorporation of chip elements in a core yarn
AssigneeCommissariat A L'energie Atomique Et Aux Energies Alternatives
InventorJean Brun
Life of this patent
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Abstract
A fabrication method of a sheathed yarn includes the following steps: making a core run axially through a sheathing area; winding a sheathing fibre around the core in the sheathing area; and presenting a microelectronic chip fixed onto the core in the sheathing area. A polymer material is present between the microelectronic chip and the core when the sheathing step is performed. The polymer material creeps during the sheathing step to form a protective coating.
Claims12
Fabrication method of a sheathed yarn, comprising the following steps:
- providing a core and at least one microelectronic chip associated with sections of yarn;
- providing a polymer material comprising fillers;
- placing the at least one microelectronic chip and the sections of the yarn in contact with the core;
- winding at least one sheathing fibre around the at least one microelectronic chip, the sections of yarn and the core in at least one sheathing area to form the sheathed yarn;
- wherein the polymer material is present between the core and the at least one microelectronic chip before the sheathing fibre is wound around the at least one microelectronic chip and the core;
- wherein the sheathing fibre is wound around the at least one microelectronic chip and the core so as to force creepage of the polymer material through turns of the sheathing fibre to form a protective coating around the at least one microelectronic chip preventing moisture from reaching the at least one microelectronic chip.
3 more elements
Sheathed yarn comprising:
- at least one sheathing fibre wound around a core;
- at least one microelectronic chip sandwiched between the core and the at least one sheathing fibre;
- a polymer material coating the at least one microelectronic chip, the at least one sheathing fibre comprising a peripheral area devoid of polymer material.
Dependencies are inferred from the claim text.