Patent ID: 6423160
Filing Date: 2002-07-23
Classification: C21D,C22C,C23F,H01J

Abstract:
A shadow mask comprising a stainless steel plate comprising a plurality of slot holes having a substantially rectangular shape and having a constant longitudinal pitch along a vertical direction, wherein the stainless steel comprises 9 to 20 weight % of chromium (Cr), 0.15 weight % or less of carbon (C), manganese (Mn) in an amount no greater than 1.0 weight %, titanium (Ti) in an amount no greater than 0.2 weight %, 0 to 1.0 weight % of silicon (Si), and 0 to 1.0 weight % of aluminum (Al); wherein the rest includes iron (Fe) and inevitable impurities comprising phosphorous (P) in an amount of 0.05 weight % or less and sulfur (S) in an amount of 0.03 weight % or less.