JPS5456785A - Container for microminiature piezoelectric oscillator - Google Patents

Abstract

PURPOSE:To delete the capacitors formed through the powder molding of Al2O3 and sintering by forming the thin film capacitor to the plate glass composing a container, and thus to enable the combination of the signle-unit element. CONSTITUTION:For the crystal oscillator container, electric lead layer 6 is formed to glass substrate 1, and SiO7 which is a dielectric substance, for example, is formed through the vacuum deposition or the like to the back of a container composed of jointed layer 4 of insulating layer 5 and case 3. Then lead layer 8 is formed on SiO7 to obtain at least one unit of the thin film capacitor. In this method, the container of the crystal oscillator can be formed through a flat process, so a number of units of containers can be obtained at a time from one sheet of the glass plate. Also, the thin film capacitor can be obtained in many unit simultaneously with formation of a number of containers.