ROBERT FRANK DONADIO
Pilots at Chagnon Ln, Hudson, NH
License number
New Hampshire A2519597
Issued Date
Aug 2016
Expiration Date
Aug 2018
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
12 Chagnon Ln, Hudson, NH 03051
Professional information
Mbe Deposition Method Employing Effusion Cell Having A Unibody Crucible
US Patent:
5932294, Aug 3, 1999
Filed:
Mar 12, 1997
Appl. No.:
8/816166
Inventors:
Paul E. Colombo - St. Paul MN
Robert F. Donadio - Hudson NH
Robert F. Donadio - Hudson NH
Assignee:
Chorus Corporation - St. Paul MN
International Classification:
H05H 124, F27B 1402
US Classification:
427469
Abstract:
A unibody, monolithic, one-piece negative draft crucible for a MBE effusion cell. The crucible maximizes capacity, uniformity and long term flux stability, and minimizes oval defects, depletion effects, and short term shutter-related flux transients. The invention also provides a method and mandrel apparatus for making a unibody containment structure, such as a crucible formed of PBN, having a negative draft, via chemical vapor deposition.
Unibody Crucible And Effusion Cell Employing Such A Crucible
US Patent:
5820681, Oct 13, 1998
Filed:
May 3, 1995
Appl. No.:
8/433033
Inventors:
Paul E. Colombo - White Bear Lake MN
Robert F. Donadio - Hudson NH
Robert F. Donadio - Hudson NH
Assignee:
Chorus Corporation - White Bear Lake MN
International Classification:
F27B 1410
US Classification:
118726
Abstract:
A unibody, monolithic, one-piece negative draft crucible for a MBE effusion cell. The crucible maximizes capacity, uniformity and long term flux stability, and minimizes oval defects, depletion effects, and short term shutter-related flux transients. The invention also provides a method and mandrel apparatus for making a unibody containment structure, such as a crucible formed of PBN, having a negative draft, via chemical vapor deposition.
Unibody Crucible And Effusion Source Employing Such A Crucible
US Patent:
5827371, Oct 27, 1998
Filed:
Aug 29, 1996
Appl. No.:
8/705535
Inventors:
Paul E. Colombo - White Bear Lake MN
Robert F. Donadio - Hudson NH
Robert F. Donadio - Hudson NH
Assignee:
Chorus Corporation - White Bear Lake MN
International Classification:
C23C 1654, F27B 1408
US Classification:
118726
Abstract:
A unibody, monolithic, one-piece negative draft crucible for an MBE effusion source. The crucible maximizes capacity, uniformity and long term flux stability, and minimizes oval defects, depletion effects, and short term shutter-related flux transients. The invention also includes an effusion source employing such a crucible, as well as a method and mandrel apparatus for making a unibody containment structure, such as a crucible formed of PBN, having a negative draft, via chemical vapor deposition.