Die package having an adhesive flow restriction area

Abstract

A die package having an adhesive flow restriction area. In a first embodiment, the adhesive flow restriction area is formed as a trench in a transparent element. A second embodiment has a transparent element with an adhesive flow restriction area formed as a plurality of trenches that extend from one edge of the transparent element to the other edge. A third embodiment has a transparent element with an adhesive flow restriction area formed as a plurality of trenches. A fourth embodiment has a transparent element with an adhesive flow restriction area formed as a protuberance. A fifth embodiment comprises a trench in the die. A sixth embodiment has a die with a plurality of trenches in the die as an adhesive flow restriction area. A seventh embodiment has a die with a protuberance.

1 . An imaging device, comprising: 
 a die containing an array of imaging elements; and    a transparent element adhesively attached to said die by an adhesive material and having a first surface facing a first surface of said die, said first surface of said transparent element having an adhesive flow restriction area forming a perimeter surrounding said array of imaging elements for impeding flow of an adhesive across said first surface of said die.    
   
   
       2 . (canceled)  
   
   
       3 . The imaging device of  claim 1 , wherein said adhesive flow restriction area comprises at least one trench.  
   
   
       4 . The imaging device of  claim 3 , wherein said at least one trench has a rectangular shape.  
   
   
       5 . The imaging device of  claim 3 , wherein said at least one trench has a curved shape.  
   
   
       6 . (canceled)  
   
   
       7 . The imaging device of  claim 3 , further comprising a second trench creating a perimeter around said at least one trench.  
   
   
       8 . The imaging device of  claim 3 , wherein said adhesive flow restriction area further comprises at least a second trench extending to an edge of said transparent element.  
   
   
       9 . The imaging device of  claim 1 , wherein said adhesive flow restriction area comprises at least one protuberance.  
   
   
       10 . The imaging device of  claim 9 , wherein said at least one protuberance has a curved shape.  
   
   
       11 . The imaging device of  claim 9  wherein said at least one protuberance has a rectangular shape.  
   
   
       12 . The imaging device of  claim 9 , wherein said at least one protuberance has a pointed shape.  
   
   
       13 . The imaging device of  claim 9 , wherein said at least one protuberance is formed of a mesa.  
   
   
       14 . (canceled)  
   
   
       15 . The imaging device of  claim 9 , further comprising a second protuberance surrounding said at least one protuberance.  
   
   
       16 . The imaging device of  claim 9 , wherein said adhesive flow restriction area further comprises at least a second protuberance extending to an edge of said transparent element.  
   
   
       17 - 27 . (canceled)  
   
   
       28 . The imaging device of  claim 1 , wherein said transparent element is comprised of a material selected from the group consisting of glass, an optical thermoplastic material, a polyimide, a thermoset resin, a photosensitive gelatin, and a radiation curable resin.  
   
   
       29 . The imaging device of  claim 1 , wherein said adhesive material at an edge of said transparent element completely covers wire bonds electrically connecting said die to conductive lines.  
   
   
       30 . The imaging device of  claim 1 , wherein said die is associated with a substrate.  
   
   
       31 . The imaging device of  claim 1 , wherein said die is electrically connected to conductive tape by at least one conductive structure.  
   
   
       32 . The imaging device of  claim 31 , wherein said at least one conductive structure is a solder ball.  
   
   
       33 . The imaging device of  claim 1 , wherein said imaging element is comprised of an array of pixels, said pixels providing electrical signals corresponding to a response from light radiation.  
   
   
       34 . The imaging device of  claim 1 , wherein said imaging element is comprised of an array of pixels, said pixels capable of displaying an image corresponding to electrical signals.  
   
   
       35 . The imaging device of  claim 1 , wherein a vacant space between said transparent element and said array of imaging elements is hermetically sealed by said adhesive material.  
   
   
       36 - 70 . (canceled)  
   
   
       71 . An imaging device, comprising: 
 a die containing an array of imaging elements; and    a transparent element adhesively attached to said die by an adhesive material and having a first surface facing a first surface of said die, said first surface of said transparent element having at least one adhesive flow restriction area comprising of at least one protuberance capable of impeding flow of an adhesive across said first surface of said die.    
   
   
       72 . The imaging device of  claim 71 , wherein said at least one protuberance has a curved shape.  
   
   
       73 . The imaging device of  claim 71 , wherein said at least one protuberance has a rectangular shape.  
   
   
       74 . The imaging device of  claim 71 , wherein said at least one protuberance has a pointed shape.  
   
   
       75 . The imaging device of  claim 71 , wherein said at least one protuberance is formed of a mesa.  
   
   
       76 . The imaging device of  claim 71 , wherein said at least one protuberance surrounds said array of imaging elements.  
   
   
       77 . The imaging device of  claim 76 , further comprising a second protuberance surrounding said at least one protuberance.  
   
   
       78 . The imaging device of  claim 71 , wherein said at least one protuberance extends from edge to edge of said transparent element.