Process for separating acceleration sensors constructed as differential capacitors
AssigneeMannesmann Kienlze GmbH
InventorHorst Plankenhorn
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AssigneeMannesmann Kienlze GmbH
InventorHorst Plankenhorn
Estimating the term…
A process for separating a glass-silicon-glass layer package wherein the glass-silicon-glass layer package is produced at a minimum process cost and is constructed from a plurality of acceleration sensors constructed with micro-mechanical structure techniques. At the same time, dirt is to be prevented from entering the acceleration sensors and the connection contacts are to be freed automatically. Separation is effected substantially by crosswise cutting and subsequent breaking. In order to prevent an "opening" of the acceleration sensors when cutting in one direction, i.e. transversely relative to the flexural resonators, and to achieve a defined breaking, one glass disk is cut until a predetermined breaking point is reached and the other glass disk is severed in a parallel plane. An intermediate layer which surrounds the connection in a U-shaped manner, serves as a blocking layer arranged between the two dividing planes and impedes a bonding of the glass disk and the silicon disk.
A process for separating acceleration sensors, which are constructed as differential capacitors and, which are produced from a glass-silicon-glass layer package, wherein a disk-shaped silicon layer has a grid structure with flexural resonators which are cut free therefrom, and further wherein a plurality of glass disks, which are bonded with the silicon disk, carry metal layers which face plate-shaped masses of the flexural resonators, and further wherein metal layers have substantially identical surface areas and are connected so as to be electrically conductive with connection contacts which are arranged on a glass disk, which comprises the steps of:
Dependencies are inferred from the claim text.