METHOD OF PREPARING GLASS CERAMIC GLASS SURFACE “СТ-50-1” FOR CHEMICAL APPLICATION OF CURRENT-CONDUCTING AND SEMICONDUCTOR FILMS Russian patent published in 2024 - IPC C03C15/00 C03C17/10 B08B3/08 C09K13/08 C09K13/02 C03C3/83 

FIELD: technological processes.

SUBSTANCE: present invention relates to the glass ceramic surface preparation technology for the chemical application of current-conducting coatings or semiconductor films, for example, lead or cadmium sulphides, and can be used in production of microchips and photocells. Method for preparation of glass ceramic surface “СТ-50-1” involves undercutting glass ceramic surface with 5 vol.% aqueous solution of hydrofluoric acid for 1.5–2 minutes at room temperature, etching glass ceramic with 40 wt.% aqueous solution of KOH or NaOH at temperature of 60–70 °C for 15–20 minutes and subsequent activation with 0.02 M aqueous solution of AgNO₃ for 15–20 minutes at room temperature.

EFFECT: providing a simple method of preparing glass ceramic for uniform application of a current-conducting or semiconductor coating with high adhesion to the glass ceramic base.

1 cl, 7 ex