The probe needles in the probe card are subject to high demands. Due to the minimal gaps between the individual pitches, they must be extremely straight and demonstrate excellent electrical conductivity. In addition, they must be sufficiently elastic and demonstrate good mechanical strength even at high temperatures in order for them to be used through many load cycles.
Precipitation hardened PdAgCu alloys and high-strength PtNi alloys demonstrate the required properties, they are suitable for high currents and not susceptible to cold welding with other materials. In addition to their dimensional stability under heat, the outstanding resistance to corrosion contributes to a long service life.
Heraeus offers you a wide variety of probe needles with a consistently high standard of quality and fast delivery times. Take advantage of our decades of experience as an authority in materials and our expertise in production technology.