Wetting-based breakable links.

摘要

A breakable link is based on the principles of wetting which occurs between one material, when it is in liquid form, as it is placed on a surface of another material. Specifically, the breakable link of this invention is created by depositing a conducting layer over a region that encompasses two pads that are wettable by the deposited conducting layer and over an insulating area between the pads that is much less wettable by the depositied conducting layer. The link is broken by raising the temperature of the deposited conducting layer above its melting point. When the conducting layer melts, the wetting action of the two pads in combination with the non-wetting action of the insulating area draws the molten solder away from the insulating area and onto the pads. The drawing away from the insulating area breaks the electrical contact between the two pads.