Electronic devices with floating metal rings

Abstract

A electronic device is provided. The electronic device comprises first and second electrodes and a first floating metal ring. The first and second electrodes are formed in a first layer. The first floating metal ring is formed in the first layer and encloses the first electrode and the second electrode. Thus, noise on a conducting line near the electronic device does not directly affect differential signals on the first and second electrodes.

1 . An electronic device comprising:
 a first electrode formed in a first layer;   a second electrode formed in the first layer; and   a first floating metal ring formed in the first layer and enclosing the first electrode and the second electrode.   
     
     
         2 . The electronic device as claimed in  claim 1 , wherein the first electrode and the second electrode are formed in an L-type shape, a ladder-type shape, a figure-type shape, a zipper-type shape, or a hook-type shape. 
     
     
         3 . The electronic device as claimed in  claim 1  further comprising:
 a third electrode formed in a second layer; and   a fourth electrode formed in the second layer.   
     
     
         4 . The electronic device as claimed in  claim 3  further comprising:
 a second floating metal ring formed in the second layer and enclosing the third electrode and the fourth electrode.   
     
     
         5 . The electronic device as claimed in  claim 3 , wherein the first and the second electrodes in the first layer overlap the third and fourth electrodes in the second layer to form a woven structure. 
     
     
         6 . The electronic device as claimed in  claim 1 , wherein the floating metal ring has a breaking. 
     
     
         7 . The electronic device as claimed in  claim 6 , wherein the floating metal ring is symmetrically disposed with respect to a symmetry axis. 
     
     
         8 . An electronic device comprising:
 a first electrode formed in a first layer;   a second electrode formed in the first layer, wherein the first electrode and the second electrode are symmetrically disposed with respect to a first point; and   a first floating metal ring formed in the first layer and enclosing the first electrode and the second electrode.   
     
     
         9 . The electronic device as claimed in  claim 8 , wherein the floating metal ring is symmetrically disposed with respect to the first point. 
     
     
         10 . The electronic device as claimed in  claim 8 , wherein the first electrode and the second electrode are formed in a figure-type shape. 
     
     
         11 . The electronic device as claimed in  claim 10 , wherein figures of the first and second electrodes extend toward the symmetry axis 
     
     
         12 . The electronic device as claimed in  claim 11 , wherein the figures of the first and second electrodes are alternately disposed. 
     
     
         13 . The electronic device as claimed in  claim 8  further comprising:
 a third electrode formed in a second layer; and   a fourth electrode formed in the second layer.   
     
     
         14 . The electronic device as claimed in  claim 13  further comprising:
 a second floating metal ring formed in the second layer and enclosing the third electrode and the fourth electrode.   
     
     
         15 . The electronic device as claimed in  claim 14 , wherein the third electrode and the fourth electrode are symmetrically disposed with respect to a second point, and the second floating metal ring is symmetrically disposed with respect to the second point. 
     
     
         16 . The electronic device as claimed in  claim 13 , wherein the first and the second electrodes in the first layer overlap the third and fourth electrodes in the second layer to form a woven structure. 
     
     
         17 . An electronic device comprising
 a first electrode formed in a first layer   a second electrode formed in a first layer, wherein the first electrode and the second electrode are disposed in rotational symmetry with respect to a first symmetry point; and   a floating metal ring formed in a first layer and enclosing the first electrode and the second electrode.   
     
     
         18 . The electronic device as claimed in  claim 17 , wherein the floating metal ring is in rotational symmetry with respect to the first symmetry point. 
     
     
         19 . The electronic device as claimed in  claim 17 , wherein the first electrode and the second electrode are formed in a figure-type shape, a zipper-type shape, or a hook-type shape. 
     
     
         20 . The electronic device as claimed in  claim 17  further comprising:
 a third electrode formed in a second layer; and   a fourth electrode formed in the second layer.   
     
     
         21 . The electronic device as claimed in  claim 20  further comprising:
 a second floating metal ring formed in the second layer and enclosing the third electrode and the fourth electrode.   
     
     
         22 . The electronic device as claimed in  claim 21 , wherein the third electrode and the fourth electrode are disposed in rotational symmetry with respect to a second symmetry point, and the second floating metal ring is disposed in rotational symmetry with respect to the second symmetry point. 
     
     
         23 . The electronic device as claimed in  claim 20 , wherein the first and the second electrodes in the first layer overlap the third and fourth electrodes in the second layer to form a woven structure. 
     
     
         24 . An electronic device comprising:
 a first electrode formed in a first layer;   a second electrode formed in the first layer; and   a floating plate disposed under the first electrode and the second electrode.   
     
     
         25 . The electronic device as claimed in  claim 24 , wherein first electrode and the second electrode are formed in an L-type shape, a ladder-type shape, a figure-type shape, a zipper-type shape, or a hook-type shape. 
     
     
         26 . The electronic device as claimed in  claim 24 , wherein the surface of the floating plate is smooth. 
     
     
         27 . The electronic device as claimed in  claim 24 , wherein the floating plate has trenches or slices or other kinds of holds. 
     
     
         28 . The electronic device as claimed in  claim 24  further comprising two walls disposed two sides of the electronic device. 
     
     
         29 . The electronic device as claimed in  claim 28 , wherein the two walls are disposed two opposite sides of the electronic device. 
     
     
         30 . The electronic device as claimed in  claim 28 , wherein each of the walls is formed by an upper conductive line and a plurality of lower conductive lines, and the upper conductive line is connected with the conductive lines. 
     
     
         31 . The electronic device as claimed in  claim 30 , wherein for each of the walls, there are holds formed between the lower conductive lines, the upper conductive line, and the corresponding side of the electronic device.