The present invention is directed to devices and methods for generating light with plasma lamps. The electronic device has a cover secured to a protective housing to form a protective enclosure for the electronic device. The first connecting pads are respectively disposed on the fingerprint sensing cells and exposed from a top surface of the substrate. The laminated weld forming the lug assembly results in a stronger lug body backup plate and provides an even clamping force. 5% by weight has an optical absorbance \u03c4 for the light of a wavelength of 700 nm satisfying the following formula :\u03c4\u2266240S\u22121.