Reticle pod having function of gas exchange
AssigneeGudeng Precision Industrial Co., Ltd.
InventorsNi-Shin Lee, Shao-Wei Lu
Life of this patent
Estimating the term…
Abstract
A reticle pod for storing reticles, into the gas channel of partition of which gas is filled through a gas inlet, wherein strong gas flow is formed around the pellicle film and the pellicle film expands outward in accordance with the Bernoulli's principle; when no gas is filled in through the gas inlet, the pellicle film contracts inward. Therefore, by turning on and shutting off the gas inlet valve, the pellicle film will be set in a breathing motion for the gas inside the pellicle film to be exchanged.
Claims16
A reticle pod disposed with gas exchange structure, comprising an upper cover and a lower cover, said upper cover being formed by a cover and a first circumferential wall connected to said cover, said lower cover being formed by a base and a second circumferential wall connected to said base, an accommodation space being formed by said first circumferential wall and said second circumferential wall for accommodating and fastening a reticle substrate when said upper cover and said lower cover close and join with each other, at least a pair of upwardly protruding through holes being disposed on said base opposite to each other at a distance, the characteristic of said reticle pod being that a gas exchange structure is installed on said base of said lower cover, wherein said gas exchange structure comprises:
- a gas chamber base, four edges of which being connected to a third circumferential wall that extends upward;
- at least a pair of downwardly protruding through holes disposed on said gas chamber base opposite to each other at a distance, position of said plurality of downwardly protruding through holes corresponding to position of said plurality of upwardly protruding through holes;
- a first partition, having a first surface and a second surface opposite to said first surface, said first partition being disposed on said third circumferential wall and a gas chamber being formed between said second surface of said first partition and said gas chamber base, a gas channel being further formed on said first partition;
- and
- a second partition disposed on said first surface of said first partition, a gas flow guiding room being formed between said second partition and said first partition, square measure of said second partition being smaller than square measure of said first partition for gap to be formed between said second partition and said third circumferential wall;
- wherein said gas exchange structure is fastened to said base with said plurality of downwardly protruding through holes snap-fitting with said plurality of upwardly protruding through holes, gas channels being formed by said plurality of downwardly protruding through holes and said plurality of upwardly protruding through holes.
A reticle pod disposed with gas exchange structure, comprising an upper cover and a lower cover, said upper cover being formed by a cover and a first circumferential wall connected to said cover, said lower cover being formed by a base and a second circumferential wall connected to said base, an accommodation space being formed by said first circumferential wall and said second circumferential wall for accommodating and fastening a reticle substrate when said upper cover and said lower cover close and join with each other, at least a pair of upwardly protruding through holes being disposed on said base, the characteristic of said reticle pod being that a gas exchange structure is installed on said base of said lower cover, wherein said gas exchange structure comprises:
- a gas chamber base, four edges of which being connected to a third circumferential wall that extends upward;
- at least a pair of downwardly protruding through holes disposed on said gas chamber base opposite to each other at a distance, position of said at least a pair of downwardly protruding through holes corresponding to position of said at least a pair of upwardly protruding through holes;
- a first partition, having a first surface and a second surface opposite to said first surface, said first partition being disposed on said third circumferential wall and a gas chamber being formed between said second surface of said first partition and said gas chamber base, a gas channel being further formed on said first partition;
- and
- a second partition having a first surface and a second surface opposite to said first surface, said second partition being disposed on said third circumferential wall, a gas flow guiding room being formed between said second surface of said second partition and said first surface of said first partition, a plurality of gaps being further disposed on four sides of said second partition;
- wherein said gas exchange structure is fastened to said base with said plurality of downwardly protruding through holes snap-fitting with said plurality of upwardly protruding through holes, gas channels being formed by said plurality of downwardly protruding through holes and said plurality of upwardly protruding through holes.
Dependencies are inferred from the claim text.