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An innovative method for filling and sealing the reference cell for a Rubidium (Rb) integrated atomic clock is presented. We used a simple, low-temperature solder sealing technique for producing mini-cells of the size of 12×10×2 mm, suitable for Rb miniature atomic clocks. The cell is made by two glass slides acting as the top and bottom walls, joined by a solder ring acting as the sidewall. In the...
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