Technical Note High sensitive IR-OBIRCH analysis

High sensitive IR-OBIRCH analysis
Newly designed OBIRCH amplifier (C7636-05) achieves more than 3 times
higher detectability by eliminating internal and external noises.
Moreover the new noise canceling function for the combination with
external power supply like LSI tester improved the detectability drastically.
In the combination with a digital lock-in, new OBIRCH amplifier provides
clearer signals, that leads easy localization of defective points.
Reduce internal circuit noise
Low noise AMP
3× higher S/N improvement!
+
Line profile
Noise
Existent AMP
Noise
Cancel noise from
an external power supply
Line profile
Noise cancellation function is added to AMP.
SoC
+
Reduce system noise
and enviromental noise
New AMP
with no noise cancellation function
SoC
with noise cancellation function
Digital lock-in function
FPGA
FPGA
Detected signal
with no digital lock-in
C7636-05 with digital lock-in
Detection mode
3 modes are avaiable.
C7636-05
Constant voltage
Constant current
High-sensitivity mode
10 mV to 10 V
10 mV to 10 V
10 mV to 25 V
100 mA
100 mA
100 μA
1 nA*1
1 μV*2
3 pA*1
Voltage
Max. current
Detection limit
*1: Minimum detectable pulse signal input into the amplifier
*2: Calculated value
Measurement mode is selectable through software.
In order to get measurement result effectively,
detection mode shall be selectrd depending on device characteristics.
Device impedance
Measurement mode
Constant current mode
<100 Ω
Constant voltage mode
100 Ω to 1 k Ω
>1 k Ω
High sensitivity mode
Future development
Lock-in function improvement for higher sensitivity and for 3D-IC analysis
High sensitive and accurate OBIRCH measurement option for power devices
Constant
Voltage
Source
Amp GND
CV OBIRCH amp
DUT
Coaxial Cable
Ext. Power Source
GND
Amp GND
Amp GND
Amp GND
DUT GND
Schematic of noise cancel function
★ Product and software package names noted in this documentation are trademarks or registered trademarks of their respective manufacturers.
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Subject to local technical requirements and regulations, availability of products included in this promotional material may vary. Please consult your local sales representative.
Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible
inaccuracies or omissions.
Specifications and external appearance are subject to change without notice..
© 2011 Hamamatsu Photonics K.K.
http://www.hamamatsu.com
HAMAMATSU PHOTONICS K.K., Systems Division
812 Joko-cho, Higashi-ku, Hamamatsu City, 431-3196, Japan, Telephone: (81)53-431-0124, Fax: (81)53-435-1574, E-mail:[email protected]
U.S.A. and Canada: Hamamatsu Corporation: 360 Foothill Road, Bridgewater, N.J. 08807-0910, U.S.A., Telephone: (1) 908-231-0960, Fax: (1)908-231-0852, E-mail: [email protected]
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[email protected]
Cat. No. SSMS0044E02
Italy: Hamamatsu Photonics Italia S.R.L.: Strada della Moia, 1 int.6-20020 Arese (Milano), Italy, Telephone: (39)02-935 81 733, Fax: (39)02-935 81 741, E-mail: [email protected]
SEP/2011 HPK
Created in Japan