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PN 141-400 www.formfactor.com CM300xi • 5 Revision 57, February, 2023 Probe Station A ccessories CM 30 0xi wit h T o p Cha m ber SI GMA K ITS 127 31 2 — S IG MA f or Ke y si gh t 4294 1A, HF Feat ur es • SI GMA I ntegrat…

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PN 141-400 www.formfactor.com CM300xi • 4
Revision 57, February, 2023 Probe Station Accessories
176-911 — Left Side Instrument Shelf
Features
• Tray assembly mounts on both
CM300 left side posts
• Well suited for applications
requiring short cabling (e.g., low-
noise and RF applications)
Specifications
• Maximum load: 50 kg (110 lb)
• She lf area (WxD): 488 x 600 mm
(19.2 x 23.6 in), adapted for
Keysight B1505 footprint
• Height above probe platen: 225
mm (8.9 in)
Compatibility
• CM300 semi-automated p robe
stations only
• Compatible with rear shelves 161-695 and 176-613
177-560 — Top Hat Assembly, 4 Port, 300 mm
Features
• Ena bles the use of single or dual
Keysight N5291 modules with
Infinity and ACP probes on
CM300xi and El ite 300 stations
with MicroChamber
• Ena bles full thermal capability
Configuration
• Intended for use with positioner assemblies RPP404-EW-120,
RPP404-W-120, RPP304-NS-67, RPP304-NS-67
Compatibility
• CM300xi, Elite300
PN 141-400 www.formfactor.com CM300xi • 5
Revision 57, February, 2023 Probe Station Accessories
CM300xi with Top Chamber
SIGMA KITS
127312 — SIGMA for Keysight 42941A, HF
Features
• SIGMA Integration of the impedance probe Keysight 42941A into
MicroAlign Advanced systems for capacitance measurements by
IV method, including:
• On-wafer integration of Keysight 42941A close to the DUT to
optimize measurement performance
• Optimized cable length reduces systematic measurement error
• App ropriate feed-through and ultra-short SMA cable for RF pad
design
• Requires RPP305-S positioner with arm East/West/4PH or arm
East/West/4PH/Mirrored plus |Z|Probe GS or SG and an
instrument shelf for optimum instrument connection
Compatibility
• CM300xi, PA300 MicroAlign, PM300PS
131467 — SIGMA for Keysight E5288A ASU
Features
• SIGMA Integration of Keysight E5288A
ATTO Sense and Switch Units (ASU) to
MicroAlign Advanced systems, including:
• On-wafer integration of one or t wo ASUs
close to the DUT to optimize measurement
performance
• For use with any standard triax or triax/Kelvin probe arm and probe
arm for DCP probes
• Providing automated I-V and C-V measurements
• Optimized cable length reduces cable capacitance
• For use with DPP2xx/DPP3xx positioners with Triax probe arm and
probe arm for DCP probes
Compatibility
• CM300xi, PA300 MicroAlign, PM300PS
138183 — SIGMA for PreAmp Keithley 4200/6430 (up to
4)
Features
• SIGMA Integration of up to 4 Keithley
PreAmps for 4200 and 6 430 into
MicroAlign Advanced systems,
includes:
• Optimal integration of up to 4
PreAmps on a single Test Equ ipment
Interface placed close to the DUT
• For use with any standard triax or triax/Kelvin probe arm and probe
arm for DCP probes
• High power cabling outside the MicroAlign (provided by Keithley)
eliminates tribo-electric effects
Compatibility
• CM300xi, PA300 MicroAlign, PM300PS
145265 — SIGMA for IV/CV
Features
• SIGMA Int egration of Parameter
Test Instruments for I-V and C-V
measurements into the
MicroAlign Advanced systems,
includes:
• 2 panels with 4 triax-triax-dual connectors (Force & Sense), and 4
coax-triax connectors (type E1)
• Kelvin connectors (Force & Sense) fit to Keysight 4155/4156/4157,
and a ny o ther s ingle Triax cable with 3-lug plug
• 4 coax cables with BNC plug for total cable length of 2 m (6.5 ft) for
CV measurements
• CommonRing technology for shortest virtual ground close to the
DUT
• For use with DPP2xx/DPP3xx positioners with Triax probe arm and
probe arm for DCP probes
Compatibility
• CM300xi, PA300 MicroAlign, PM300PS
PN 141-400 www.formfactor.com CM300xi • 6
Revision 57, February, 2023 Probe Station Accessories
TEST EQUIPMENT INTERFACES
144987 — Test Equipment Interface, Pico Probe (up to
2)
Features
• To connect up to 2 active pico
probes to the MicroAlign
Advanced
• Includes 1 panel with 2
feedthroughs with integrated
cable strain relief
Compatibility
• CM300xi, PA300 MicroAlign, PM300PS
145044 — Test Equipment Interface, PH510 (up to 3)
Features
• Feedthrough plate for control
lines of up to 3 PH510 for use
in a MicroAlign system with
Top Chambers
• Not used control lines are
covered by a blank plate
Compatibility
• CM300xi, PA300 MicroAlign, PM300PS