US 12,305,814 B2
Custom thermal shields for cryogenic environments
Patryk Gumann, Tarrytown, NY (US); Valerio A. Grendanin, St. Augustine, FL (US); Sean Hart, Tarrytown, NY (US); David C. Mckay, Ossining, NY (US); Jerry M. Chow, Scarsdale, NY (US); David Zarsky, Bethlehem, PA (US); and Gilbert Bauer, Peekskill, NY (US)
Assigned to INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US)
Filed by International Business Machines Corporation, Armonk, NY (US)
Filed on Jan. 8, 2021, as Appl. No. 17/144,932.
Prior Publication US 2022/0221107 A1, Jul. 14, 2022
Int. Cl. F17C 3/08 (2006.01); F25D 19/00 (2006.01); H01F 6/04 (2006.01)
CPC F17C 3/085 (2013.01) [F25D 19/006 (2013.01); F17C 2201/0119 (2013.01); F17C 2203/0391 (2013.01); F17C 2203/0646 (2013.01); F17C 2270/0527 (2013.01); H01F 6/04 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A cryostat, comprising:
a thermal shield partitioned into a plurality of sections extending between a thermal stage and a base structure coupled to a bottom plate of an outer vacuum chamber, the thermal stage coupled to a top plate of the outer vacuum chamber, the thermal shield providing access to a sample mounting surface encompassed within the thermal shield from a region external to the outer vacuum chamber via the top and bottom plates of the outer vacuum chamber, and wherein the base structure and the thermal stage are contained within the thermal shield; and
a metal strip extending between the thermal stage and the base structure that covers edges of adjacent sections among the plurality of sections, wherein the metal strip comprises a first plurality of attachment points on a first side of a longitudinal axis of the metal strip coupled to a first section of the plurality of sections and a second plurality of attachment points on a second side of the longitudinal axis of the metal strip coupled to a second section of the plurality of sections.