Apparatuses and methods for forming electronic assemblies

Abstract

Apparatuses and methods for forming displays are claimed. One embodiment of the invention includes a contact smart card wherein fluidic self assembly is used to build the microelectronic structures on the display such that a contact smart data is transmitted unidirectionally. A contact smart card is inserted directly into a device that transfers data to a display coupled to the smart card. Another embodiment of the invention relates to a contactless smart card in which fluidic self assembly is also used here to build the display. Data is transmitted to an antenna that is embedded in the contactless card in which a plurality of blocks were deposited thereon.

1 . A smart card comprising:
 an antenna;   an integrated circuit coupled to the antenna, the integrated circuit storing an account information; and   a display electrically coupled to the integrated circuit, the display comprising:   an array of recessed regions in a first flexible substrate;   a slurry deposited into at least one recessed region of the array;   a second substrate covering the array of recessed regions.   
     
     
         2 . The smart card of  claim 1  wherein the first flexible substrate comprises PET (polyester). 
     
     
         3 . The smart card of  claim 1  wherein a recessed region of the array is shaped complementary to a protruding structure on a roller in a web processing apparatus. 
     
     
         4 . The smart card of  claim 1  further comprising metal contacts exposed on a surface of the smart card configured for physical contact with a reader head. 
     
     
         5 . The smart card of  claim 1  wherein the display includes a single input/out interconnect formed in a backside of the display. 
     
     
         6 . The smart card of  claim 1  wherein the first flexible substrate is laminated to the second substrate. 
     
     
         7 . A display comprising:
 an array of recessed regions in a first PET (polyester) substrate, the recessed regions being shaped complementary to a protruding structure on a roller in a web processing apparatus;   a slurry deposited into at least one recessed region of the array;   a flexible substrate covering the array of recessed regions.   
     
     
         8 . A method for fabricating assemblies, the method comprising:
 forming an array of recessed regions in a first flexible substrate, the forming comprising applying a roller, having at least one protruding structure, onto the first flexible substrate to create the array;   depositing a slurry into at least one recessed region of the array; and   covering the array with a second flexible substrate.   
     
     
         9 . The method of  claim 8 , wherein the roller is coupled to a web processing apparatus with processes the first flexible substrate. 
     
     
         10 . The method of  claim 9 , wherein a recessed region of the array is shaped complementary to the protruding structure on the roller in the web processing apparatus. 
     
     
         11 . The method of  claim 8 , further comprising:
 laminating the first flexible substrate to the second flexible substrate.   
     
     
         12 . The method of  claim 8 , wherein covering the array comprises:
 depositing material onto the first flexible substrate.   
     
     
         13 . The method of  claim 10 , wherein the method further comprises:
 separating each of a plurality of assemblies from the first flexible substrate.   
     
     
         14 . The method of  claim 8 , wherein the first flexible substrate comprises PET (polyester). 
     
     
         15 . A display comprising:
 an array of recessed regions formed in a first flexible substrate, the recessed regions having a shape which is complimentary to a protruding structure of a roller in a web processing apparatus;   a slurry deposited into at least one recessed region of the array; and   a second flexible substrate to cover the array of recessed regions,   wherein the first flexible substrate is laminated to the second flexible substrate.