SWITCH INCLUDING A PHASE CHANGE MATERIALS BASED STRUCTURE WHERE ONLY ONE PART IS ACTIVATABLE
First Claim
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1. Selector switch capable of making or breaking a connection between at least one first conducting element and at least one second conducting element, comprising the following, on a support:
- a structure based on at least one phase change material located between the first conducting element and the second conducting element, the phase change material being capable of changing state between a crystalline state wherein the phase change material has a first resistivity and an amorphous state wherein the phase change material has a second resistivity higher than the first resistivity,means of heating the phase change material provided with at least one first heating electrode and at least one second heating electrode,wherein the phase change material structure is formed from at least one central region located between the first conducting element and the second conducting element and between the first electrode and the second electrode, the phase change material structure also being provided with a first branch, a second branch, a third branch and a fourth branch, that are distinct and that extend around a central region, the first branch being in contact with the first conducting element, the second branch being in contact with the second conducting element, the third branch being in contact with the first electrode and the fourth branch being in contact with the second electrode,the third and/or the fourth branch(es) having a narrower section in a zone in contact with the central region than in a zone in contact with the electrode with which it is in contact.
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Abstract
Selector switch provided with:
- a structure based on at least one phase change material placed between a first conducting element and a second conducting element, the phase change material being capable of changing state,
- means of heating the phase change material provided with at least one first heating electrode and at least one other heating electrode,
- the structure based on a phase change material being configured to form a confined active zone of the phase change material at a distance from the conducting elements.
68 Citations
15 Claims
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1. Selector switch capable of making or breaking a connection between at least one first conducting element and at least one second conducting element, comprising the following, on a support:
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a structure based on at least one phase change material located between the first conducting element and the second conducting element, the phase change material being capable of changing state between a crystalline state wherein the phase change material has a first resistivity and an amorphous state wherein the phase change material has a second resistivity higher than the first resistivity, means of heating the phase change material provided with at least one first heating electrode and at least one second heating electrode, wherein the phase change material structure is formed from at least one central region located between the first conducting element and the second conducting element and between the first electrode and the second electrode, the phase change material structure also being provided with a first branch, a second branch, a third branch and a fourth branch, that are distinct and that extend around a central region, the first branch being in contact with the first conducting element, the second branch being in contact with the second conducting element, the third branch being in contact with the first electrode and the fourth branch being in contact with the second electrode, the third and/or the fourth branch(es) having a narrower section in a zone in contact with the central region than in a zone in contact with the electrode with which it is in contact. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification