Patent ID: 11913703
Assignee: ONTO INNOVATION INC.
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F | IPC F

Claim 8:
9. An apparatus for transferring heat in a liquefied gas cooled detector, comprising:
a horizontal Dewar flask positioned with a length extending in a horizontal direction, the horizontal Dewar flask having an internal chamber for holding liquefied gas, the internal chamber having a first end and a second end and having a top and a bottom; and
a thermal transfer member mounted to the first end of the horizontal Dewar flask, the thermal transfer member having a first surface and a second surface that is opposite the first surface and that is in direct physical contact with the liquefied gas held in the internal chamber, the second surface having a larger surface area at a bottom portion of the second surface than at an upper portion of the second surface, wherein the second surface of the thermal transfer member has at least one projection that extends in the horizontal direction into the internal chamber and at the bottom of the internal chamber and produces the larger surface area in direct physical contact with the liquefied gas at the bottom portion of the second surface than at the upper portion of the second surface, wherein the liquefied gas cooled detector is thermally coupled to the first surface.