Abstract: The strength of high lead or alkaline earth oxide sealing glass articles is increased by treating the surface of the articles with a solution of dilute nitric acid containing about 1-10 weight percent of concentrated nitric acid in water for the time necessary to remove a thin layer of material from the surface of the article.The purpose of this abstract is to enable the public and the Patent Office to rapidly determine the subject matter of the technical disclosure of the application. This abstract is neither intended to define the invention of the application nor is it intended to be limiting as to the scope thereof.

Abstract: A process for forming a glass interconnection package for semiconductor chips including the steps of depositing a first layer of glass material on a supporting substrate and then heating the layer in a first gaseous ambient which is soluble in the glass material. Immediately thereafter, the first gaseous ambient is replaced by a second gaseous ambient which is insoluble in the glass material and the glass layer is heated and then cooled down to ambient atmosphere.