DCP-HTR: Parametric DC probing of small pads

When probing small pads (40 μm and less), there is no room for excessive overtravel to overcome poor contacts. The probe simply skates out of room on the pad and either skates off the pad or catches the edge of the passivation and bends the probe tip, leading to unrepeatable measurements or damage of the probe. To recommend the best choice of DCP-HTR probe tips for small pad probing, experiments were conducted to measure contact resistance of various tip options while increasing the amount of overtravel in a controlled and measurable manner.

Created: August 23, 2017 | Updated: August 23, 2017 | Type: pdf | Size: 637.90 KB

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