The present laser barcode scanner employs a simplified scan mechanism made from a semi-flexible substrate that eliminates complicated optical assemblies, a layout with location features eliminating the need for special alignment, and a layout with all surface mounted devices on a single layer eliminating the need for extra soldering. This is achieved by the incorporation of a moving lens that disperses the 0. The method further includes providing a second device having a second semiconductor chip, a plurality of second external contact elements and a metal layer including a first face and a second face opposite to the first face, the first face of the metal layer facing the second semiconductor chip and the second face of the metal layer facing the plurality of second external contact elements. The electronic circuit has a normal mode in which the IO nodes are logically connected to the main unit and a test mode in which the IO nodes are logically connected to the test unit. The connector assembly is provided with a passageway to facilitate installation of the sealant, a sealant reservoir to protect electrical leads thereof, a sealant trough to protect wire ends of an associated device connector, andor specially configured interior cavity walls or a cavity engagement member to enhance adhesion between the sealant and the cavity. This measured energy is used by the decoded frame check unit to decide whether to provide the decoded data to the user or to declare a frame erasure.