CHECKING DEVICE OF THE CRYSTAL SURFACE Russian patent published in 1994 - IPC

FIELD: microelectronic instrument production. SUBSTANCE: device has synchronizing generator 1, unit 2 of information read-out from the crystal surface 2, quantization unit 3, fault analysis unit 4, pulse shapers 5,6, pulse generator 7, commutator 8, register 9, unit 10 for picking out the extremal signal level, subtraction unit 11, set-point device 12 of voltage level. EFFECT: enhanced authenticity of checking the surface of the crystals whose picture sizes exceed those of the television raster. 1 cl, 2 dwg