Instruction manual

Electric Force (EFM) Imaging

Surface Potential Imaging—Procedure

Rev. B MultiMode SPM Instruction Manual 265

A current-limiting resistor (e.g., 10–100MΩ) should be placed in series with the external voltage

supply to protect the tip and sample from damage. Current-limited power supplies may also be

used. Voltage leads should be connected to pins on the header using soldered, push-on connectors.

Do not solder leads directly to the header pins. Heat may cause damage and/or make jumpering the

pins difﬁcult.

The sample should be electrically connected directly to the chuck or a standard sample puck using

conductive epoxy or silver paint as shown below:

14.7 Surface Potential Imaging—Procedure

1. Locate the two toggle switches on the backside of the Basic Extender box (Figure 14.7a),

then verify that they are toggled as shown in Figure 14.7a.

Figure 14.7a Toggle Switches on Back of Basic Extender Module

Sample Chuck

Sample

Conductive Epoxy

or Paint

FM/Phase

Surface Potential

Gnd/Surface Potential

Analog 2

Mode

Tip or Sample

Voltage

NanoScope

Microscope