| 摘要 |
A folded, highly pure platinum, thick film, path on a ceramic cylindrical substrate provides a high TCR of about 3850 ppm/ DEG C. The path is applied by screen printing a thick film paste onto a substrate and then firing the paste at a time and temperature sufficient to bond the path to the substrate and to produce a TCR of at least about 3850 ppm/ DEG C. The paste is comprised of about 20% by weight of an organic carrier into which 80% by weight of particles have been mixed. The particles are 96% by weight platinum particles of less than about ten microns size and 4% by weight of a contaminant-free vitreous glass frit of less than ten microns size. |
