Circuit board assembly

Abstract

A circuit board assembly includes a circuit board and at least one electrical element. The circuit board includes a dielectric substrate including a supporting surface, and at least one connecting part formed on the supporting surface. The at least one electrical element is electrically connected to the at least one connecting part via a connecting media. At least one air-exhaust hole extends through the connecting part and the dielectric substrate. The at least one air-exhaust hole is configured for exhausting air from the connecting media.

1 . A circuit board assembly comprising:
 a first circuit board, the first circuit board comprising a first dielectric substrate and at least one first connecting part forming on the first dielectric substrate;   a second circuit board comprising a second dielectric substrate and at least one second connecting part, the second dielectric substrate comprising a supporting surface, the at least one second connecting part being formed on the supporting surface, facing the at least one first connecting part, and electrically connecting to the at least one first connecting part via a connecting media, wherein the at least one second connecting part defines at least one air-exhaust hole extending through the at least one second connecting part and the second dielectric substrate, to exhaust air from the connecting media.   
   
   
       2 . The circuit board assembly as claimed in  claim 1 , further comprising an electrical element electrically connected to the first circuit board. 
   
   
       3 . The circuit board assembly as claimed in  claim 2 , wherein the electrical element is a camera module comprising an image chip electrically connected to the first circuit board. 
   
   
       4 . The circuit board assembly as claimed in  claim 3 , wherein the camera module further comprises a holder with at least one lens and the image chip received therein; the image chip is electrically connected to the first connecting part via the connecting media. 
   
   
       5 . The circuit board assembly as claimed in  claim 4 , wherein the holder is installed on the first circuit board. 
   
   
       6 . The circuit board assembly as claimed in  claim 1 , wherein the first dielectric substrate defines a first cavity facing the second dielectric substrate, and a first electrical connecting part is formed in the first cavity. 
   
   
       7 . The circuit board assembly as claimed in  claim 6 , wherein the supporting surface of the second dielectric substrate defines a second cavity and a second electrical connecting part formed in the second cavity; the connecting media is disposed between the first electrical connecting part and the second electrical connecting part.