Patent ID: 7786741

Claim:
A contact arrangement for a measuring probe or measuring head for high-frequency measurement on a semiconductor wafer, comprising: a contact end for electrically contacting planar structures, where at the contact end there is arranged a coplanar conductor structure including at least two conductors carried by a dielectric, where between the dielectric and the contact end a measuring tip is configured such that the at least two conductors of the coplanar conductor structure are disposed so as to be free in space and resiliently relative to the dielectric, the dielectric including at least one arrangement for transmitting electric signals, which is connected electrically to at least one of the at least two conductors of the coplanar conductor structure such that the arrangement transmits signals from the at least one of the at least two conductors that is electrically connected to the arrangement, including a respective slot in said coplanar conductor structure between any two conductors of the coplanar conductor structure over said coplanar structure entire length, said slot configured to result in a constant wave resistance over the entire length of the coplanar conductor structure.