Container for storing and transporting fragile objects

• US 5,782,356 A
• Filed: 04/30/1996
• Issued: 07/21/1998
• Est. Priority Date: 04/30/1996
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Hugg, Joshua S.
• Primary Examiner(s): Ackun, Jacob K.
• Application Number:
  US08/641,378
• Time in Patent Office: 812 Days
• Field of Search: 206/425, 206/449, 206/454, 206/701, 206/710, 206/711, 206/722, 206/723, 206/725
• US Class Current: 206/454
• CPC Class Codes: B65D 25/04 Partitions
• CPC Class Codes: G03F 1/66 Containers specially adapted for masks, mask blanks or pellicles; Preparation thereof
• CPC Class Codes: H01L 21/67369 characterised by shock absorbing elements, e.g. retainers or cushions
• CPC Class Codes: H01L 21/67386 characterised by the construction of the closed carrier

Abstract

A container for storing and transporting fragile objects, comprising a pair of side walls, a top wall, a bottom wall, and a back wall, forming a box with one open side; a plurality of spaced apart partitions between the side walls for separating the objects; and means to maintain the objects in an angled orientation during storage and transport so that the objects rest against the partitions and do not easily move.

Claims

1. A container for storing and transporting fragile objects, comprising:

at least one fragile object;

a pair of side walls, a top wall, a bottom wall, and a back wall, forming a box with one open side;

a plurality of spaced apart partitions between the side walls for separating the objects,

wherein the angle of the partitions is such that the following conditions are satisfied;

x_g <

X₀

x'"'"'_g >

x₀

where

x_g =calculated or measured x component of the center of gravity for the object, assuming the direction of tilt is perpendicular to the x-y plane;

X'"'"'_g =relative x position of x_g upon tilting the object;

x₀ =measured width of object, assuming the direction of tilt is perpendicular to the y-z plane, also the pivot point around which the object is tilted;

and

means to maintain the objects in an angled orientation during storage and transport so that the objects rest against the partitions and do not easily move.

2. The container of claim 1 wherein the partitions are angled in order to maintain the objects in an angled orientation during storage and transport.

3. The container of claim 2 further comprising a retaining means attached to the side walls and spanning the open side for retaining the objects inside the container during transport.

4. The container of claim 1 wherein the objects are semiconductor wafers, further comprising means to maintain the wafers in a horizontal orientation for automated loading into a processing tool.

5. The container of claim 4 wherein the means to maintain the wafers in a horizontal orientation for automated loading comprises a tool interface having slots of differing depth corresponding to the lengths of the support pegs.

6. The container of claim 1 further comprising a handle attached off-center to the container such that in transport the back wall is lower than the open side.

7. The container of claim 1 wherein the objects are reticles.

8. A container for storing and transporting fragile objects, comprising:

at least one fragile object;

a pair of side walls, a top wall, a bottom wall, and a back wall, forming a box with one open side;

a plurality of spaced apart partitions between the side walls for separating objects;

a handle attached off-center to the container in order to maintain the objects in an angled orientation during transport so that the objects rest against the partitions and do not easily move; and

a plurality of support pegs attached externally to a wall of the container, the support pegs differing in length in order to maintain the objects in an angled orientation during storage.

9. The container of claim 8 wherein the partitions are angled in order to maintain the objects in an angled orientation during storage and transport.

10. The container of claim 9 wherein the angle of the partitions is such that the following conditions are satisfied:

X_g <

X₀

x'"'"'_g >

x₀

where

x_g =calculated or measured x component of the center of gravity for the object, assuming the direction of tilt is perpendicular to the x-y plane;

x'"'"'_g =relative x position of _g x upon tilting the object;

X₀ =measured width of object, assuming the direction of tilt is perpendicular to the y-z plane, also the pivot point around which the object is tilted.

11. The container of claim 9 further comprising a retaining means attached to the side walls and spanning the open side for retaining the objects inside the container during transport.

12. The container of claim 8 wherein the partitions are non-angled.

13. The container of claim 8 wherein the objects are semiconductor wafers, further comprising means to maintain the wafers in a horizontal orientation for automated loading into a processing tool.

14. The container of claim 13 wherein the means to maintain the wafers in a horizontal orientation for automated loading comprises a tool interface having slots of differing depth corresponding to the lengths of the support pegs.

15. The container of claim 8 wherein the fragile objects are reticles.

16. A container for storing and transporting fragile objects, comprising:

at least one fragile object;

a pair of side walls, a top wall, a bottom wall, and a back wall, forming a box with one open side;

a plurality of spaced apart partitions between the side walls for separating the objects;

a handle attached off-center to the container in order to maintain the objects in an angled orientation during transport; and

a plurality of support pegs attached externally to a wall of the container, the support pegs differing in length in order to maintain the objects in an angled orientation during storage.