Patent ID: 6924974

Claim:
A cover assembly that can be joined to a micro-device package base to form a hermetically sealed micro-device package, the cover assembly including: a sheet of transparent material having a window portion defined thereupon; and a built-up metallic frame adhering to the sheet and circumscribing the window portion, the frame having been deposited onto the sheet by first spraying a first quantity of powdered metal particle onto a prepared frame-attachment area of the sheet using a jet of gas, the gas being at a temperature below the fusing temperature of the metal particles, and the jet of gas having a velocity sufficient to cause the metal particles to merge with one another upon impact with the sheet and with one another so as to form an initial continuous metallic coating adhering to the frame-attachment area of the sheet, and then applying successive quantities of powdered metal particles over the initial continuous metallic coating using the jet of gas so as to form the built-up metallic frame incorporating the initial continuous metallic coating as its base and having an overall thickness that is a predetermined thickness.