Multi-Layered Pillow Cover

Abstract

A semiconductor device includes a first layer, first and second active areas disposed on the first layer; a trench disposed between the first and second active areas, an insulating oxide that fills the trench to a level below a surface of the first and second active layers, and a nitride cap disposed on top of the insulating oxide so that the first and second active areas can be cleaned without damaging the insulating oxide. A top surface of the nitride cap in regions adjacent to the first and second active areas is aligned with a top surface of the first and second active areas, a top surface of the nitride cap in a center region of the nitride cap is stepped below the top surface of the adjacent regions, and a void is formed between the top surface regions adjacent to the first and second active areas.

1 . A pillow cover assembly comprising:
 a plurality of layers of pillow sheets bound together on one edge that can be flipped around the bound end like a book; and   an attachment system configured to attach the pillow sheets to pillow or a pillow case configured to house the pillow, wherein the attachment system is a plurality of straps with fasteners at each end.   
     
     
         2 . The pillow cover assembly of  claim 1 , wherein the fasteners comprise fabric hook and loop fasteners. 
     
     
         3 . The pillow cover assembly of  claim 1 , wherein each layer of sheets is approximately 18 inches wide. 
     
     
         4 . The pillow cover assembly of  claim 3 , wherein each layer of sheets is approximately 24-31 inches long. 
     
     
         5 . The pillow cover assembly of  claim 1 , wherein each layer of sheets is made of satin/polyester or satin/silk or mulberry silk satin. 
     
     
         6 . The pillow cover assembly of  claim 1  preferably has 5-7 layers of sheets. 
     
     
         7 . The pillow cover assembly of  claim 1 , wherein each layer of sheets is one inch longer than the one below. 
     
     
         8 . The pillow cover assembly of  claim 1  further comprising a pillow covering which is wrapped around the pillow sheets to protect the clean sheets. 
     
     
         9 . The pillow cover assembly of  claim 1 , wherein each layer of sheets comprises a layer of cotton stitched into a polyester sheet. 
     
     
         10 . A pillow cover assembly comprising:
 a plurality of layers of pillow sheets bound together on one edge that can be flipped around the bound end like a book, wherein each layer of sheets comprises a layer of cotton stitched into a polyester sheet; and   an attachment system configured to attach the pillow sheets to pillow or a pillow case configured to house the pillow.   
     
     
         11 . The pillow cover assembly of  claim 10 , wherein the attachment system comprises a plurality of straps with fabric hook and loop fasteners at the ends. 
     
     
         12 . A pillow cover assembly comprising:
 a plurality of layers of pillow sheets bound together on one edge that can be flipped around the bound end like a book, wherein each layer of sheets is made of satin/polyester or satin/silk or mulberry silk satin; and   an attachment system configured to attach the pillow sheets to pillow or a pillow case configured to house the pillow.   
     
     
         13 . The pillow cover assembly of  claim 12 , wherein the attachment system comprises a plurality of straps with fabric hook and loop fasteners at the ends.