Patent ID: 11869787
Assignee: ENTEGRIS, INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  F | IPC B  F  H

Claim 0:
1. A substrate container, comprising:
a container portion having a container wall defining a container interior, the container portion further having a plurality of substantially horizontal spaced apart substrate shelves disposed within the interior;
at least one substantially tubular environmental control component for directing fluid flow into the container interior;
a check-valve assembly disposed within the control component, adapted to allow fluid flow into the substrate container through the control component, the check-valve assembly comprising:
a substantially cylindrical valve seat portion; and
an elastomeric umbrella check valve member held within the valve seat portion to substantially disallow fluid flow out of the container through the control component; and
an elastomeric interface stacked with the check-valve assembly, an end of the elastomeric interface being sealingly engaged with an end of the check-valve assembly, and an outer circumference of the elastomeric interface being sealingly connected to the control component.