Agilent Technologies B1542A Bedienungsanleitung PDF herunterladen (Seite 9)

SCUU and ASU overcome positioner-based switching challenges

The ASU works with the HRSMUs

and the MFCMU to provide flexible

and precise IV and CV measurements.

Positioner-based CV-IV solutions

for every need

The B1500A supports two posi-

tioner-based CV-IV switching

solutions. Depending upon the

SMU resources chosen, Agilent

can supply solutions with 0.5 µV

voltage measurement resolution

and 10 fA, 1 fA or 0.1 fA current

measurement resolution.

SCUU makes accurate CV-IV measure-

ments fast and effortless

The SMU CMU unify unit (SCUU)

works with the B1500A’s MFCMU

and MPSMUs or HRSMUs. The

SCUU enables you to switch be-

tween CV and IV measurements

without sacrificing measure-

ment accuracy. Besides taking

care of switching and accuracy

issues the B1500A and SCUU

combination also solves CV

measurement compensation,

connection and return path issues.

This is all done automatically, without

requiring you to have a detailed under-

standing of the theory involved in making

CV measurements.

You can combine the B1500A’s MFCMU and MPSMUs or HRSMUs with the SCUU or ASUs to create

positioner-based CV-IV switching solutions to meet a variety of needs. All solutions are Kelvin, they

support CV-IV switching, and they have integrated capacitance compensation.

SMU A

SMU B

MFCMU

SCUU INPUT

SCUU

SMU A or MFCMU-H

SMU B or MFCMU-L

SCUU OUTPUT

Kelvin Measurement

Multi-Frequency Capacitance Measurement

CV-IV Switching

Integrated Capacitance Compensation

0.1 fA / 0.5 µV Solution

1 x MFCMU

2 x HRSMU

2 x ASU

10 fA / 0.5 µV Solution

1 x MFCMU

2 x MPSMU

1 x SCUU

1 fA / 0.5 µV Solution

1 x MFCMU

2 x HRSMU

1 x SCUU

ASU provides 0.1 fA measurement with CV-IV switching

The B1500A’s HRSMU accepts an optional attosense

and switch unit (ASU), which increases its low-current

measurement resolution to 100 attoamps (0.1 fA).

The ASU also has two BNC inputs that can work

with the B1500A’s MFCMU, as well as other instru-

ments. This makes it easy to switch between

ultra-low current measurements (IV) and capa-

citance measurements (CV) without having to

change any cables. When joined via the optional connector

cable, the ASUs also automatically short the guards

during CV measurements to improve measurement accuracy.

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