Piezoelectric crystal grinding surface correction - has two diagonally opposite areas protected before etching remainder and lapping again

The incorrectly ground piezo electric crystal has its sloping faces corrected by applying to two diagonally opposite front and rear faces a protective layer of etching medium resistant material (13,14) and etching away the non protected parts of the faces (11). The flat rectangular crystal is then l...

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Bibliographische Detailangaben
1. Verfasser:	BECKER,ERHARD
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE DRESSING OR CONDITIONING OF ABRADING SURFACES ELECTRICITY FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS GRINDING LIME, MAGNESIA MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING METALLURGY PERFORMING OPERATIONS POLISHING REFRACTORIES SLAG TRANSPORTING TREATMENT OF NATURAL STONE
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