A LOW-TEMPERATURE SYSTEM WITH A PULSE UV LASER FOR SCRIBING HTSC FILMS AND SINGLE-CRYSTALS

A simple laser scribing equipment used to pattern hich-T-c films and s ingle crystals within a micron accuracy is described. A focused beam o f a UV pulsed laser serves as a cutting tool. A low temperature attach ment enables all operations to be performed at sample temperatures ran ging from 65 to 300 K. Thus it provides a means to fit the critical cu rrent of any element in a cryoelectronic circuit to a desirable value during its operational conditions.