Patent ID: 6150006
Filing Date: 2000-11-21
Classification: C03C,H01L,Y10T

Abstract:
A quartz glass article for use in the manufacture of semiconductors, said article comprising:a quartz glass component having a component surface defined by a plurality of irregular, elevated structural elements each having an upwardly disposed substantially flat top surface extending in a first plane;said structural elements having side surfaces adjacent to the top surface which extend outwardly and downwardly therefrom and from the first plane;the component surface having an average roughness depth R.sub.a in a range of 0.1 .mu.m to 10 .mu.m;the structural elements having an average size between 30 .mu.m and 180 .mu.m;at least a part of the side surfaces including a formation of step elements; andadjoining structural elements defining therebetween grooves with a width of at least 1 .mu.m.