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CR-(XM-44)/U MODERATE PRECISION GLASS ENCLOSED CRYSTALS

Melvin Hammer, Stuart Radetsky

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Abstract

The frequency measurement system used in the aging test set-up is described. The pre-production samples were rejected due, mainly, to corrosion on the holder pins. Correction of this problem is discussed. The glass sealing technique is described - including the equipment and process used, and crystal frequency change due to the heat generated by the seal process. The Inspection and Quality Control Plan is represented by the use of various charts and data forms.

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What this paper is about

The frequency measurement system used in the aging test set-up is described. The pre-production samples were rejected due, mainly, to corrosion on the holder pins. Correction of this problem is discussed. The glass sealing technique is described - including the equipment and process used, and crystal frequency change due to the heat generated by the seal process. The Inspection and Quality Control Plan is represented by the use of various charts and data forms.

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Available abstract

The frequency measurement system used in the aging test set-up is described. The pre-production samples were rejected due, mainly, to corrosion on the holder pins. Correction of this problem is discussed. The glass sealing technique is described - including the equipment and process used, and crystal frequency change due to the heat generated by the seal process. The Inspection and Quality Control Plan is represented by the use of various charts and data forms.

Key concepts: Materials science

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