Glass substrates with strategically imprinted B-side features and methods for manufacturing the same

A method for forming a glass substrate, the method comprising:

• melting glass batch materials to form molten glass;
• forming the molten glass into a glass substrate having a planar A-side surface and a planar B-side surface opposed to the A-side surface, wherein the glass substrate is formed without mechanically contacting at least the A-side surface prior to the glass substrate solidifying to a viscosity greater than 1013 Poise, wherein the planar A-side surface has a surface roughness Ra1 of less than 0.5 nm after solidification;
• drawing the glass substrate in a downward direction;
• forming a plurality of texturing features into the B-side surface of the glass substrate while the glass substrate is at a temperature T1, wherein:
• 600° C.≦T1≦1200° C.;
• the texturing features extend from the B-side surface into a thickness of the glass substrate without extending through the thickness of the glass substrate;
• the plurality of texturing features have a peak-to-valley height H such that 0.05 μm≦H≦3.75 μm;
• a center-to-center pitch P between adjacent texturing features is at least 1.5 mm in at least one direction;
• and
• the B-side surface has a surface roughness Ra2 such that a ratio Ra2:Ra1 is greater than or equal to about 1.5.