MANUFACTURING METHOD OF GLASS SUBSTRATES OF COVER GLASSES FOR PORTABLE ELECTRONIC DEVICES, A GLASS SUBSTRATE OF COVER GLASS FOR PORTABLE ELECTRONIC DEVICE AND A PORTABLE ELECTRONIC DEVICE CAPABLE OF MAINTAINING STRENGTH OF THE GLASS SUBSTRATES WITHOUT PRODUCTIVITY

摘要

PURPOSE: A manufacturing method of glass substrates of cover glasses for portable electronic devices, a glass substrate of cover glass for portable electronic device and a portable electronic device are provided to primary chemical strengthening plate shaped glass ashes and to secondary chemical strengthening glass substrates.;CONSTITUTION: A manufacturing method of glass substrates of cover glasses for portable electronic devices comprises the following steps: a primary chemical strengthening the plate shaped glass ashes using an ion-exchange treatment; dividing the primary chemical strengthened glass substrate into a plurality of glass substrates(20); and a secondary chemical strengthening the plurality of glass substrates by using the ion-exchange process. The ion exchange process in the primary chemical strengthening process and the ion exchange process in the secondary chemical strengthening are processed under an identical condition or different condition. The second step is processed by the etching processing. The content rate of ion diffusion inhibitor in the secondary strengthening process is lower than thereof in the primary chemical strengthening process.;COPYRIGHT KIPO 2012