Keyboard keys using marked elastic domes and fabrication method thereof

Abstract

Keyboard keys using a marked elastic dome and the fabrication method thereof. The method for fabricating elastic domes first includes providing a mold having a plurality of mold cavities with a markable surface. Next, a plurality of different marks is formed on the markable surface of each of the mold cavities. An elastic membrane with a plurality of marked elastic domes is formed by the mold. The marks on the elastic domes represent the position with respect to the mold cavities on the mold and the parameters of fabricating the elastic membrane. Finally, the marked elastic domes are separated from the elastic membrane and used in keys of a keyboard.

1 . A method for fabricating elastic domes, comprising: 
 providing a mold having a plurality of mold cavities with a first markable surface thereon;    forming different first marks on the markable surface of each of the mold cavities;    forming an elastic membrane having a plurality of elastic domes with different second marks on a second markable surface with respect to the first marks on the first markable surface; and    separating the elastic domes from the elastic membrane.    
   
   
       2 . The method as claimed in  claim 1 , wherein the first marks represent a serial number of the mold cavities on the mold.  
   
   
       3 . The method as claimed in  claim 1 , wherein the first marks represent a parameter of manufacturing the elastic membrane.  
   
   
       4 . An elastic dome made by the method as claimed in  claim 1 , comprising: 
 a main body, having a second markable surface; and    a plurality of second marks, disposed on the second markable surface.    
   
   
       5 . The elastic dome as claimed in  claim 4 , wherein the second markable surface is divided into a plurality of mark areas to distinguish the second marks into a plurality of groups, wherein the second marks of each of the mark areas have the same intervals.  
   
   
       6 . The elastic dome as claimed in  claim 5 , wherein the figures of the second marks between each two mark areas are different.  
   
   
       7 . The elastic dome as claimed in  claim 4 , wherein the second marks are protrusions.  
   
   
       8 . The elastic dome as claimed in  claim 4 , wherein the second marks are recesses.  
   
   
       9 . The elastic dome as claimed in  claim 4 , wherein the main body further includes a datum on the second markable surface.  
   
   
       10 . The elastic dome as claimed in  claim 5 , wherein the main body further includes separations between each two mark areas.  
   
   
       11 . The elastic dome as claimed in  claim 10 , wherein the separations are protrusions with a figure different from the figure of the second marks.  
   
   
       12 . The elastic dome as claimed in  claim 10 , wherein the separations are recesses with a figure different from the figure of the second marks.  
   
   
       13 - 22 . (canceled)