CPC H05B 3/34 (2013.01) [A24F 40/40 (2020.01); A24F 40/44 (2020.01); A24F 40/46 (2020.01); H05B 3/26 (2013.01); H05B 3/44 (2013.01); A24F 40/10 (2020.01); H05B 2203/021 (2013.01); H05B 2203/022 (2013.01)] | 16 Claims |
1. An electrically conductive flat filament arrangement for a fluid permeable heater assembly for aerosol-generating systems, the flat filament arrangement comprising:
a center portion; and
two side portions, the two side portions being arranged on opposite sides of the center portion, the center portion defining a heating region of the filament arrangement and the side portions defining electrical contact regions of the filament arrangement, the center portion and the two side portions each including,
a plurality of openings, the plurality of openings of the center area defining an open area of the center portion and the plurality of openings of each side portion defining an open area of each of the two side portions, a percentage of a total area of the center portion including the open area of the center portion being greater than a percentage of a total area of one of the two side portions including the open area of each of the two side portions.
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