Method and apparatus for manufacture of quartz oscillator

A method for manufacturing high-frequency oscillator elements from a workpiece material, comprising the steps of:

• providing a vacuum chuck having a tip for vacuum mounting;
• mounting a spherical whetstone at said tip of said vacuum chuck;
• rotating said vacuum chuck around an axis passing through a center of said spherical whetstone;
• providing a grinding mount on a main rotating shaft;
• fixing the workpiece material on the grinding mount;
• and
• lapping the workpiece material using said spherical whetstone rotating on said vacuum chuck.

A method for manufacturing high-frequency oscillator elements from a workpiece material having an outer side surface, a planar surface and another surface opposing said planar surface, comprising the steps of:

• forming a protecting member around said outer surface and said planar surface of said workpiece material leaving said another surface exposed;
• setting said workpiece mounted in said protecting member to a lapping machine;
• and
• lapping said another surface of said workpiece and said protecting member simultaneously to form said workpiece into an ultra thin material.

An apparatus for manufacturing high-frequency oscillator elements from a workpiece material, comprising:

• a tool holder made of a magnetic material having a tip, the tool being mounted on a rotational drive for rotating said tool holder;
• a spherical whetstone made of a magnetic material magnetically mounted on the tip of said tool holder;
• a grinding mount made of a magnetic material installed to a main rotatable shaft;
• and
• a drive for rotating said tool holder around an axis passing through a center of said spherical whetstone.

An apparatus for manufacturing high-frequency oscillator elements from a workpiece material, comprising:

• a vacuum chuck having a tip for vacuum mounting;
• a spherical whetstone mounted on the tip of said vacuum chuck;
• and
• a drive for rotating said vacuum chuck around an axis passing through a center of said spherical whetstone.