THIEN NGUYEN
Nail Technician in Navy Sup Dpt, PA
License number
Pennsylvania CL019852L
Category
Cosmetology
Type
Nail Technician
Address
Address
Navy Sup Dpt, PA 17055
Professional information
St-Cut And At-Cut Oriented Seed Bodies For Quartz Crystal Synthesis And Method For Making The Same
US Patent:
5714005, Feb 3, 1998
Filed:
Dec 20, 1995
Appl. No.:
8/575202
Inventors:
Joseph F. Balascio - Carlisle PA
Thien T. Nguyen - Mechanicsburg PA
David J. Weary - Carlisle PA
Theodore E. Lind - Lombard IL
Thien T. Nguyen - Mechanicsburg PA
David J. Weary - Carlisle PA
Theodore E. Lind - Lombard IL
Assignee:
Motorola Inc. - Schaumburg IL
International Classification:
C30B 710
US Classification:
117 72
Abstract:
ST-cut and AT-cut quartz seed bodies (18,40) for quartz crystal synthesis and method for making the same are disclosed. An extended quartz seed body (18) having an angle of about 42. 75. degree. rotated about a X axis (20) from a +Z axis (22) to a -Y axis (24) and defining a ST-cut is provided and a quartz crystal bar (32) is grown thereupon. Analogously, an extended quartz seed body (40) having an angle of about 35. 25. degree. rotated about a X axis (20) from a +Z axis (22) to a -Y axis (24) and defining an AT-cut is provided and a quartz crystal bar (48) is grown thereupon. In each case, the subsequent quartz crystal bar (32,48) may be wafered parallel to the seed body (18,40) thereby; reducing waste (68), recovering the seed body (18,40) for reuse, producing wafers (70) without intervening seed portions, and increasing factory capacity.
St-Cut And At-Cut Oriented Seed Bodies For Quartz Crystal Synthesis And Method For Making The Same
US Patent:
6001171, Dec 14, 1999
Filed:
Dec 15, 1997
Appl. No.:
8/991065
Inventors:
Joseph F. Balascio - Carlisle PA
Thien T. Nguyen - Mechanicsburg PA
David J. Weary - Carlisle PA
Theodore E. Lind - Lombard IL
Thien T. Nguyen - Mechanicsburg PA
David J. Weary - Carlisle PA
Theodore E. Lind - Lombard IL
Assignee:
CTS Corporation - Elkhart IN
International Classification:
C30B 710
US Classification:
117 72
Abstract:
ST-cut and AT-cut quartz seed bodies (18,40) for quartz crystal synthesis and method (100) for making the same are disclosed. An extended quartz seed body (18) having an angle of about 42. 75. degree. rotated about a X axis (20) from a +Z axis (22) to a -Y axis (24) and defining a ST-cut is provided and a quartz crystal bar (32) is grown thereupon. Analogously, an extended quartz seed body (40) having an angle of about 35. 25. degree. rotated about a X axis (20) from a +Z axis (22) to a -Y axis (24) and defining an AT-cut is provided and a quartz crystal bar (48) is grown thereupon. In each case, the subsequent quartz crystal bar (32,48) may be wafered parallel to the seed body (18,40) thereby; reducing waste (68), recovering the seed body (18,40) for reuse, producing wafers (70) without intervening seed portions, and increasing factory capacity.