Low-warp, strengthened articles and asymmetric ion-exchange methods of making the same

摘要: A method of making strengthened articles that includes: providing comprising ion-exchangeable alkali metal ions and first second primary surfaces; a bath ion-exchanging larger in size than the ions; submersing at ion-exchange temperature duration to form articles. Each article comprises compressive stress region. Further, exchange rate is higher into surface surface. In addition, step conducted such predetermined gap maintained between each