RU1834868C - Decorative glass - Google Patents

Abstract

Use: for decorative lamps, mirrors, furniture. SUMMARY OF THE INVENTION: A decorative glass contains a photomask, the masking coating of which constitutes at least 50% of the area of the plate in increments of 2-12 microns. The photomask may not have bright-field images of the structure of semiconductor devices or microcircuits, or contain repeated bright-field images of the topology elements of semiconductor devices. The mask should be disposed of due to defects in the coating and / or glass plate or due to the expiration of the service life. 3 s P. f-ly, 3 ill.

Description

The invention relates to the production of household products and can be used in decorative lamps, mirrors, furniture and other household appliances.

The aim of the invention is to increase the decorative effect and improve consumer properties.

The goal is achieved in that the glass mask used to be disposed of is used as a glass base for obtaining a diffraction grating, and it is necessary that the masking coating comprise at least 50% of the plate area.

To produce decorative glass, glass template blanks having glass scrap (inclusions, bubbles) or masking coating scrap (thickness thickness, discontinuity, punctures, etc.) can also be used. In addition, photo masks that have worked out their resources in the manufacture of microcircuits can be used, in which defects due to a larger number of processes are formed (punctures from dust particles, peeling and micro peeling, etc.), causing defects in the production of semiconductor devices or microcircuits. Photo masks rejected at the stage of their production due to the fuzzy edge of the pattern, size overshoot during etching of the pattern, and the like can also be used to produce decorative glass.

A diffraction grating is applied to the above photomasks or blanks of photomasks by using the photolithography method, which contains the following basic operations: washing, applying a photoresist, heat treatment, developing a photoresist, etching the masking layer, removing the photoresist, and drying. Exposure is carried out through a specially made photo mask with

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grid spacing (diffraction grating) from 2-3 microns to 10-12 microns. Ultimately, decorative glass consists of dark fields, i.e. containing a masking layer in which a diffraction grating is formed, and bright fields with a completely absent masking coating, in which there is no diffraction grating,

The decorative effect is enhanced by the good quality (clear edge) of the diffraction grating, the large difference in transmission in the region of the mask layer and where the mask layer is removed (light and dark regions of the diffraction grating). Improved consumer properties are obtained due to the resistance of the pattern on the templates with chrome or lesooxide coating to temperature (up to 400 ° C), abrasion (glass can be wiped and washed in hot water, unlike varnish coating).

The cost of decorative glass based on the template to be disposed of is determined only by the processing cost associated with applying the diffraction grating.

Initially, suitable glass templates are selected for decorative glass to be recycled. Template blanks having a defective glass or masking layer, dark-field photo masks with light elements of the microcircuit structure, spent resources in production, or rejected for non-compliance with the requirements for working templates can be used. The worked-out templates go through the entire photolithography cycle to obtain an optionally diffraction grating in steps of 2.0-3.0 microns to 10-12 microns. The formed decorative glass is washed, cut, if necessary, into elements of the required size, blunt edges are blunted or chamfered.

If you go beyond these limits, the decorative effect worsens, and if in the direction of decreasing the period, then due to the complication of the conditions of photolithography and the appearance of areas of diffraction overprint

grating, and if in the direction of increasing the period, then due to the weakening of the color separation of the diffraction grating, as household light sources (incandescent

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vani) have an extended light source (incandescent filament), resulting in color mixing during diffraction.

Fig. 1 shows an enlarged image of a decorative glass fragment, a top view and a section (1 — glass substrate of a photomask, 2 — bright-field images of structural elements of semiconductor devices or microcircuits, 3 — two-dimensional diffraction grating, formed on a dark-field region of the photomask); on Fig, 2 shows an enlarged image of a fragment of decorative glass (top view and section), not having bright-field images of elements, structures of semiconductor devices or microcircuits (4 - glass defects); Fig. 3 shows an enlarged image of a photomask that does not have bright-field images of the topology elements of semiconductor devices or microcircuits (5 - masking coating defects).

Decorative glasses can be used as part of decorative lamps, decorative mirrors, furniture and other household products.

Claims (4)

1.Decorative glass containing a coated glass plate in which a diffraction grating is made with a pitch of microns, characterized in that, in order to increase the decorative effect and improve consumer properties, it contains a photomask to be disposed of as a glass plate with a coating the masking coating of which is at least 50% of the area of the plate. 2. Glass according to claim 1, characterized in that the photomask does not have bright-field images of the structure of semiconductor devices or microcircuits. 3. Glass according to claim 1, characterized in that the photomask contains repeating bright-field images of the topology elements of semiconductor devices or microcircuits. 4. Glass according to claim 1, characterized in that the photomask is subject to disposal of defects in the masking coating and / or glass plate or due to the expiration of the service life.   // y /pifp.i  // /// fizz