强化玻璃及使用热处理制造其之方法;STRENGTHENED GLASS AND METHODS FOR MAKING THE SAME BY USING HEAT TREATMENT

摘要

本发明提供一种利用交换介质强化基板之方法，该基板具有约25.0毫米之宽度，包括具有平均离子半径之主体硷离子，且具有包括富处理区域及贫处理区域之维度区域；该方法包含：将该基板加热至约250℃且最高热处理温度之热处理温度后持续约0.001-50小时之热处理时间，其中若该热处理温度约325℃，则该热处理时间约2小时，以产生经热处理基板；及使该经热处理基板暴露于该交换介质；其中该交换介质包括入侵硷离子，该入侵硷离子具有比该主体硷离子之平均离子半径大的平均离子半径；且该强化基板包括深度为约1-500μm之压缩应力层。; the method containing: heating the substrate to a heat-treating temperatureabout 250℃; and exposing the heat-treated substrate to the exchange medium; in which the exchange medium includes an invading alkali ion having an average ionic radius that is larger than that of the host alkali ion; and the strengthened substrate includes a compressive stress layer having a depth of about 1-500 μm.