METHOD OF MANUFACTURING ELECTRIC RESISTORS FROM METAL SHEETS OR FILMS, AND THE RESISTORS OBTAINED THEREBY

摘要

In the manufacture of electric resistors, use is made of a metal sheet secured to an insulating support, and the sheet is secured to a mask comprising grooves having edges corresponding to the shape of the resistive electric circuit to be engraved on the sheet. The circuit is engraved by placing the assembly comprising the mask, the sheet and the support in a beam of ions having a kinetic energy greater than the bonding energy of the atoms forming the mask and the sheet. The invention is applicable to the production of electric resistors having high ohmic values per unit surface, and to thermometer probes and strain gauges.