MicroFM Fast Silicon Photomultiplier Family
DATASHEET
Fast Silicon Photomultiplier Detectors
The MicroFM family features SensL’s state-of-the-art M-series silicon that features a uniquely fast
output signal. This fast output can have rise times of ~100ps and recovery times of <1ns, allowing
for precision timing and fast count rates. The MicroFM series is available in four detector sizes
(0.25mm,1mm, 3mm and 6mm) and two types of package: either a TO-18 can or a new customdesigned, 4-side tileable surface-mount (SMT) package that is compatible with lead-free, reflow
soldering processes.
The MicroFM detectors are based on the silicon photomultiplier concept
and form a range of high gain, single-photon sensitive, visible-light sensors.
They have performance characteristics similar to a conventional PMT, while
benefiting from the practical advantages of solid-state technology: low
operating voltage, robustness, compactness and insensitively to light overexposure. More information on the MicroFM devices and their operation can
be found in the MicroFM User Manual.
PERFORMANCE PARAMETERS
02500
series
02520 d)
10000 series
10035 d)
30000 series
10050 d)
30035 d)
Typical breakdown voltage
(VBr) b)
60000 series
30050 d)
60035 d)
60050 d)
27.5V ± 0.5V
Bias range (above VBr)
1V - 5V
Spectral Range
400nm - 1000nm
Peak wavelength (lp)
PDE at lp a) c)
Gain a) g)
Dark Count Rate a) - Typical
500nm
15% f)
20%
23% f)
20%
23% f)
20%
23% f)
1.2x106
2.3x106
4x106
2.3x106
4x106
2.3x106
4x106
260kHz
1.2MHz
10MHz
33MHz
2.5MHz
22MHz
65MHz
Dark Count Rate
a)
- Max
1MHz
Dark Current
- Typical
50nA
450nA
700nA
3.8mA
6mA
12mA
20mA
Dark Current - Max
200nA
900nA
1.4mA
8mA
12mA
24mA
36mA
Signal leading edge e)
<0.1ns
<0.3ns
0.8ns
1ns
Signal pulse width (FWHM)
<0.4ns
<0.7ns
<2ns
5ns
a)
a)
Temperature dependence
of Vop
20mV/°C
Measured at VBr+2V and 21°C
Breakdown voltage defined as point at which dark current = 10nA (1mm devices), 100nA (3mm devices), or 400nA (6mm devices).
c)
Includes the effects of crosstalk and afterpulsing
d)
SensL naming convention: 10000 represents a 1mm detector, 035 a 35mm microcell. Therefore, the 10035 is a 1mm detector with 35mm microcells.
e)
Time taken for the signal to rise from 10% to 90% of the peak amplitude
f)
Estimated values based upon PDE measurement on the 35mm device and scaled according to fill factor.
g)
Measured from the anode line. Gain from fast output is ~2% of this. See User Manual for details.
a)
b)
SensL © 2012
1
MicroFM Fast Silicon Photomultiplier Family
DATASHEET
GENERAL PARAMETERS
02500 series
10000 series
02520
Active area (Approx.)
10035
0.25 x 0.25 mm
30000 series
10050
1 x 1 mm
2
30035
60000 series
30050
60035
3 x 3 mm
2
60050
6 x 6 mm2
2
No. of microcells
100
504
282
4774
2656
18980
10374
Microcell fill factor
48%
64%
72%
64%
72%
64%
72%
SMT Package Specifics
Package dimensions
TBD
TBD
4.00 x 4.00 mm2
Recommended operating
temperature range
-40°C to +85°C
Recommended storage
temperature range
-40°C to +85°C
Lead-free, reflow soldering process compatible (MSL 3)
See the SMT Handling Tech Note for more details.
Soldering conditions
Encapsulant type
Clear transfer molding compound
Encapsulant refractive
Index
Encapsulant transmission
7.00 x 7.00 mm2
1.54 @ 589nm
>90% transmittance @ 400nm (measured using a 1mm sample)
TO-18 Package Specifics
Recommended operating
temperature range
-40°C to +85°C
Recommended storage
temperature range
-40°C to +95°C
Soldering conditions
Soldering iron, maximum of 260°C for no more than 10 seconds.
See the Soldering Tech Note for more details.
PERFORMANCE GRAPHS
20% @ 500nm
300ps FWHM
13% @ 511keV
SensL © 2012
2
MicroFM Fast Silicon Photomultiplier Family
DATASHEET
OUTPUT SIGNALS
The oscilloscope shots below show examples of measured
waveforms from the fast output of different detector sizes and
using a 2.5GHz bandwidth oscilloscope and a 50MHz, 50ps red
(650nm) laser. No amplifier was used, and the output was directly
connected to the oscilloscope using a 1m long, 50W coaxial
cable.
Comparison of typical MicroFM output with that from other
conventional SensL SPMs (such as the MicroSM) when
illuminated with a fast laser.
MicroFM-02520
MicroFM-10035
MicroFM-60035
MicroFM-30035
SensL © 2012
3
MicroFM Fast Silicon Photomultiplier Family
DATASHEET
SMA BIASING BOARD (MicroFM-SMA-XXXXX)
PIN ADAPTER (MicroFM-SMTPA-XXXXX)
The MicroFM-SMA is a simple board designed to allow evaluation
of the MicroFM SMT range of SPM detectors. The board has SMA
connectors for connecting the bias voltage and the output signal.
The biasing and output line is laid out in such a way as to preserve
the fast timing characteristics of the detector. A version of this
board is also available with the TO-18 detector mounted (MicroFMXXXXX-SMA-X18).
The SMT Pin Adapter board (SMTPA) is a small PCB board that
houses the SMT detector and has through-hole pins to allow
its use with standard sockets. This product is useful for those
needing a quick way to evaluate the SMT package without the
need for specialist surface-mount soldering. While this is a ‘quick
fix’ suitable for many evaluations, it should be noted that the
pins will slightly degrade the timing performance and if the best
possible timing performance is required, the MicroFM-SMAXXXXX is recommended.
The MicroFM-SMA is recommended for users who require a plugand-play set-up to quickly evaluate FM-series SMT detectors with
optimum timing performance. The board provides an output which
can be connected directly to the oscilloscope or measurement
device.
The SMA board comes with a SMT or TO-18 packaged detector
soldered on to it. Therefore, the part must be ordered with a
detector type specified by using the last digits of the part number,
e.g. “-XXXXX” becomes “-30035” if the 3mm, 35µm detector is
required. Please see the Ordering Information on pages 6 - 7 for
the full range of product options and further details.
The SMTPA comes with a SMT detector soldered on to it.
Therefore, the part must be ordered with a detector type
specified by using the last digits of the part number, e.g.
“-XXXXX” becomes “-30035” if the 3mm, 35µm detector is
required. Please see the Ordering Information on pages 6 - 7 for
the full range of product options and further details.
MicroFM-SMTPA-XXXXX board, underside and topside.
MicroFM-SMA-XXXXX Board
SCHEMATICS (All Dimensions in mm)
MicroFM 10000 Series and 02520 TO18 Package
Anode
Fast
output
Cathode
SensL © 2012
4
MicroFM Fast Silicon Photomultiplier Family
DATASHEET
SCHEMATICS CONT. (All Dimensions in mm)
MicroFM 30000 Series SMT Package
Not
connected
Anode
(P)
Cathode
(N)
Fast
output
MicroFM 60000 Series SMT Package
Cathode
(N)
Fast
output
Not
connected
Anode
(P)
SensL © 2012
5
MicroFM Fast Silicon Photomultiplier Family
DATASHEET
TILING OF THE SMT PACKAGE
SensL has developed a market-leading, custom SMT package for the M-series Micro detectors. It is a compact, leadless, chip-scale
package that is compatible with lead-free, reflow soldering processes. A clear encapsulant is used to provide a smooth flat surface for
optimal coupling to scintillators.
The dead-space between the detector chip and the edge of the package has been minimized resulting in a package that can be tiled
on 4 sides. This allows multiple devices to be configured into unique layouts for a wide range of custom applications. Two-dimensional
tiling examples are illustrated below for the 3mm and 6mm package. The distance between active areas is typically ~1mm when
tiled, but actual alignment and placement tolerances will depend on the accuracy of the user’s assembly process. A Technical Note is
available that gives advice on creating arrays of the SMT detectors.
3mm Tiling
~1mm
6mm Tiling
SensL © 2012
6
MicroFM Fast Silicon Photomultiplier Family
DATASHEET
SCHEMATICS (All Dimensions in mm)
MicroFM-SMTPA Board
MicroFM-SMA Board
SensL © 2012
7
MicroFM Fast Silicon Photomultiplier Family
DATASHEET
ORDERING INFORMATION
Product Code
Microcell size
(Total number)
Sensor active area
Package type
02500 Series
MicroFM-02520-X18
MicroFM-02520-SMT
MicroFM-SMA-02520
TO-18
20µm
(100 microcells)
4-side tileable, surface mount package (SMT)
0.25mm x 0.25mm
MicroFM-SMTPA-02520
SMT detector mounted onto a PCB with SMA connectors for
bias and output.
SMT detector mounted onto a pin adapter board.
10000 Series
MicroFM-10035-X18
TO-18
MicroFM-10035-SMA-X18
X18 detector mounted onto a PCB with SMA connectors for bias
and output.
MicroFM-10035-SMT
35µm
(504 microcells)
4-side tileable, surface mount package (SMT)
SMT detector mounted onto a PCB with SMA connectors for
bias and output.
MicroFM-SMA-10035
1mm x 1mm
MicroFM-SMTPA-10035
MicroFM-10050-X18
MicroFM-10050-SMT
SMT detector mounted onto a pin adapter board.
TO-18
4-side tileable, surface mount package (SMT)
50µm
(282 microcells)
MicroFM-SMA-10050
SMT detector mounted onto a PCB with SMA connectors for
bias and output.
MicroFM-SMTPA-10050
SMT detector mounted onto a pin adapter board.
30000 Series
MicroFM-30035-SMT
MicroFM-SMA-30035
4-side tileable, surface mount package) (SMT)
35µm
(4774 microcells)
MicroFM-SMTPA-30035
3mm x 3mm
MicroFM-30050-SMT
MicroFM-SMA-30050
SMT detector mounted onto a PCB with SMA connectors for
bias and output.
SMT detector mounted onto a pin adapter board.
4-side tileable, surface mount package (SMT)
SMT detector mounted onto a PCB with SMA connectors for
bias and output.
50µm
(2656 microcells)
MicroFM-SMTPA-30050
SMT detector mounted onto a pin adapter board.
60000 Series
MicroFM-60035-SMT
MicroFM-SMA-60035
4-side tileable, surface mount package (SMT)
35µm
(18980 microcells)
SMT detector mounted onto a PCB with SMA connectors for
bias and output.
MicroFM-SMTPA-60035
SMT detector mounted onto a pin adapter board.
6mm x 6mm
MicroFM-60050-SMT
MicroFM-SMA-60050
MicroFM-SMTPA-60050
4-side tileable, surface mount package (SMT)
50µm
(10374 microcells)
SMT detector mounted onto a PCB with SMA connectors for
bias and output.
SMT detector mounted onto a pin adapter board.
SensL © 2012
8
MicroFM Fast Silicon Photomultiplier Family
DATASHEET
All specifications are subject to change without notice
Rev. 2.0, January 2013
SensL © 2012
www.sensl.com
sales@sensl.com
+353 21 240 7110 (International)
+1 650 641 3278 (North America)
9