Keysight Technologies InfiniiMax III Series, User Manual

Page: 37 / 128

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2. InfiniiMax III Probe Heads
N2848A InfiniiMax III+ QuickTip InfiniiMode Probe Head
Connecting a QuickTip to
the DUT
Use the following tips when soldering the QuickTips to your DUT:
• Orient the QuickTip vertically as shown in
Figure 17 on page 36.
• Solder the four leads to vias or surfaces.
C A U T I O N Always mechanically strain-relieve the QuickTip head before using to protect both
your probe accessories and DUT from damage.
NOTE Resistor and wire leads on the QuickTip are factory trimmed to the proper length for
use. Adding wire length to the tip of the mini-axial lead resistors or to the ground
leads will degrade the performance of the probe.
NOTE Soldering the ground wires is not required when making differential or single-ended
(+ or – leads) measurements.
• When soldering to a via, always trim the lead close to the via’s
underside.
• If a lead is to be soldered to a surface and not a via, make a stronger
solder joint by bending the end of the lead 90°. For signal leads, bend
the wire approximately half way between the resistor and the end of
the wire. Bend the ground leads at about the same distance.
C A U T I O N Be careful not to damage the tip wires when handling the QuickTips. Wires can be
carefully reshaped with tweezers or fingers if necessary.
C A U T I O N The QuickTips are very fragile. They must be manufactured in this way in order to
meet the high-performance, high bandwidth applications they are intended for. Be
extremely careful when handling.