Substrate having a unidirectional conductivity perpendicular...

Details Substrate having a unidirectional conductivity perpendicular... Substrate having a unidirectional conductivity perpendicular...

G - Physics

02

F

G02F 1/136 (2006.01) G02F 1/1333 (2006.01) H01B 1/20 (2006.01) H01B 1/22 (2006.01) H05K 3/40 (2006.01) G02F 1/1345 (2006.01) G02F 1/135 (2006.01) G02F 1/1362 (2006.01) H05K 1/00 (2006.01) H05K 3/10 (2006.01)

Patent

CA 2292671

Substrate (7; 7'; 10) and devices including such a substrate, the substrate having a first surface and a second surface extending substantially in parallel to the first surface, the substrate being of a material of a first conductivity and provided with a plurality of electrically conducting channels (21) which are extending exclusively in a direction perpendicular to the first and second surfaces, said channels having a second conductivity substantially larger than the first conductivity, the substrate being provided with at least one electrode (42) on either one of the first and second surfaces, contacting at least one of said channels, the at least one electrode (42) having a predetermined minimum dimension (D) in a contact area (A) with the substrate, and mutual distances between adjacent ones of the plurality of channels (21) being smaller than said minimum dimension of said at least one electrode (42).

Substrat (7, 7', 10) et dispositifs comportant un tel substrat. Ce substrat présente une première surface et une seconde surface sensiblement parallèlement à la première. Il est composé d'une matière présentant une première conductivité et est pourvu d'une série de canaux électriquement conducteurs (21) qui s'étendent exclusivement perpendiculairement aux première et seconde surfaces et présentent une seconde conductivité sensiblement supérieure à la première. Ce substrat comporte au moins une électrode (42), située sur la première surface ou bien sur la seconde, au contact d'au moins un desdits canaux, et présentant une dimension minimale prédéterminée (D) au niveau d'une zone de contact (A) avec le substrat. Les distances séparant les canaux adjacents de la série de canaux (21), sont inférieures à ladite dimension minimale de ladite ou desdites électrodes (42).

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