Glass Substrates For Amlcd Applications: Properties And Implications

Since its introduction almost two years ago, Corning's code 1737 AMLCD substrate glass has received strong market support. Some of this was anticipated as this glass offers several obvious improvements over existing substrates; however, some came unexpectedly as AMLCD manufacturers discovered new attributes offered by this glass. Chief among these anticipated improvements were a higher glass strain point, translating into a substrate with greater thermal stability; a lower density, resulting in lower weight and less gravitational sag; improved chemical durability, allowing more aggressive etching conditions; and a coefficient of thermal expansion more closely matched to silicon, opening up the possibility of chip-on-glass.