USB adapter assembling

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Assembling the USB adapter&Power converter
  The bare PCB.   Surface Mount Adhesive heat curable is applied for holding ICs in place during soldering operation.   Chips are placed.  
  Board goes to the oven to cure the adhesive.   The computer controlled oven is progammed for cure operation.   Solder paste is applied.  
  Remaining oven solderable SMD components are placed on board.   The board goes back to the oven. It is progammed for reflow soldering.   The board after reflow.  
  Cleaning is done several times along the assembly..   Finished board.   Multiple tests are conducted along the wiring stage.
Once it is totally assembled and boxed, it undergo a burning test for 24 hours.


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