System and method for laundering clean room garments within a semiconductor fabrication clean room facility

• US 6,128,931 A
• Filed: 01/06/1999
• Issued: 10/10/2000
• Est. Priority Date: 01/06/1999
• Status: Expired due to Fees

• Current Assignee: Advanced Micro Devices, Inc.
• Original Assignee: Advanced Micro Devices, Inc.
• Inventors: Woods, Robert L.
• Primary Examiner(s): Coe, Philip R.
• Application Number:
  US09/227,504
• Time in Patent Office: 643 Days
• Field of Search: 68/3 R, 68/13 R, 68/210
• US Class Current: 68/3.00R
• CPC Class Codes: D06F 95/00 Laundry systems or arrangements of apparatus or machines; Mobile laundries D06F31/00 takes precedence

Abstract

A system and method are presented for laundering textiles (e.g., clean room garments) within a clean room facility. The textile laundering system may be used to launder clean room garments. The system includes a washing machine, a dryer, and means for measuring the number and sizes of particulates present within laundered textiles. The washing machine has two opposed sides, a loading side and an unloading side, and at least one portion which allows access to mechanical and/or electrical equipment (i.e., an equipment access portion). The washing machine is positioned within a sealed opening in a vertical partition separating a first laundering area from a second laundering area such that the loading side is located within the first laundering area and the unloading side is located within the second laundering area. The washing machine uses only "ultrapure" water, substantially free of ions, minerals, and organic material, to launder the textiles. The dryer is used to remove residual water from the textiles, and also has at least one equipment access portion. The equipment access portions of the washer and dryer are enclosed within at least one service chase such that the equipment access portions are isolated from the first and second laundering areas. The means for measuring the number and sizes of particulates present within laundered textiles may include a Helmke drum and an aerosol particle counter.

Claims

1. A textile laundering system, comprising:

a washing machine having two opposed sides and at least one equipment access portion, wherein one side is a loading side for loading textiles into the washing machine and the other side is an unloading side for unloading textiles from the washing machine, and wherein the washing machine is positioned within a sealed opening in a vertical partition separating a first laundering area from a second laundering area such that the loading side is located within the first laundering area and the unloading side is located within the second laundering area;

a dryer having at least one equipment access portion;

means for measuring the number and sizes of particulates present within laundered textiles; and

wherein the equipment access portions of the washer and dryer are enclosed within at least one service chase area separate from the first and second laundering areas.

2. The textile laundering system as recited in claim 1, wherein a positive air pressure differential is maintained between the second and first laundering areas.

3. The textile laundering system as recited in claim 1, wherein a positive air pressure differential is maintained between the first laundering area and the at least one service chase.

4. The textile laundering system as recited in claim 1, wherein the at least one service chase has an access door positioned in an opening between the at least one service chase and the first laundering area, and wherein a positive pressure differential is maintained between the first laundering area and the at least one service chase such that when the access door is opened, air flows from the first laundering area and into the at least one service chase.

5. The textile laundering system as recited in claim 1, wherein the at least one service chase has an access door positioned in an opening between the at least one service chase and the second laundering area, and wherein a positive pressure differential is maintained between the second laundering area and the at least one service chase such that when the access door is opened, air flows from the second laundering area and into the at least one service chase.

6. The textile laundering system as recited in claim 1, wherein the textile laundering system is located within a clean room, and wherein the textile laundering system is used to launder clean room garments.

7. The textile laundering system as recited in claim 1, wherein the washing machine uses water to launder the textiles, and wherein the water is substantially free of ions, minerals, and organic material.

8. The textile laundering system as recited in claim 1, wherein the means for measuring the number and sizes of particulates present within laundered textiles comprises a Helmke drum and an aerosol particle counter.