GaAs Flip Chip PIN
Rev. V9
MA4GP907
1
1
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DC-0007455
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Features
Low Series Resistance
Ultra Low Capacitance
Millimeter Wave Switching & Cutoff Frequency
2 ns Switching Speed
Can be Driven by a Buffered TTL
Silicon Nitride Passivation
Polyimide Scratch Protection
RoHS* Compliant
Description
The MA4GP907 is a Gallium Arsenide (GaAs)
flip-chip PIN diode. It is fabricated with MOCVD
grown epitaxy using a process and design that
optimizes device-to-device uniformity and produces
extremely low parasitics. The diode exhibits an
exceptionally low RC product (0.1 ps) and a 2 - 3 ns
switching speed. The chips are fully passivated with
silicon nitride and have an added BCB polymer layer
for scratch protection. The BCB protective coating
prevents damage to the diode junction and anode
air-bridge during handling and assembly.
The ultra low capacitance of the MA4GP907 allows
for operation at millimeter wave frequencies for RF
switches and phase shifter applications. The diode is
designed to be used in pulsed or CW applications,
where single digit ns switching speed is required.
The low capacitance of this device makes it ideal for
use in many microwave multi-throw switch
assemblies, where the series capacitance of each
“off” port adversely loads the input and affects
VSWR.
Dim. Inches Millimeters
Min. Max. Min. Max.
A 0.0260 0.0270 0.6604 0.6858
B 0.0135 0.0145 0.3429 0.3683
C 0.0065 0.0075 0.1651 0.1905
D 0.0043 0.0053 0.1092 0.1346
E 0.0068 0.0073 0.1727 0.1854
F 0.0182 0.0192 0.4623 0.4877
1. Gold Pads 14 µm thick.
2. Yellow areas indicate ohmic gold mounting pads.
Chip Dimensions1,2
Part Number Packaging
MA4GP907 Waffle Pack
MADP-000907-13050P Pocket Tape
Ordering Information
* Restrictions on Hazardous Substances, European Union Directive 2011/65/EU.
GaAs Flip Chip PIN
Rev. V9
MA4GP907
2
2
MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
DC-0007455
2
Parameter Absolute Maximum
Reverse Voltage 50 V
CW Incident Power 23 dBm
RF & DC
Dissipated Power 250 mW
Operating Temperature -55°C to +125°C
Storage Temperature -55°C to +150°C
Junction Temperature +175°C
Mounting Temperature +280°C for 10 seconds
Absolute Maximum Ratings
Electrical Specifications @ TA = +25°C
Parameter Conditions Units Typ. Max. Min.
Total Capacitance (CT) -10 V,1 MHz pF 0.025 0.030 —
Series Resistance (RS) +10 mA, 1 GHz Ω 5.2 7.0 —
Forward Voltage (VF) +10 mA V 1.33 1.45 —
Reverse Voltage Current3 (IR) VR = -50 V μA — 10 —
Switching Speed4 (TRISE/TFALL) 10 GHz ns 2 — —
3. The max rated reverse voltage (VR) is sourced and the resultant reverse leakage current (IR), is measured to be <10 μA.
4. Switching speed is measured between 10% and 90% or 90% to 10% RF voltage for a single series mounted diode, driver delay is not
included.
0.012”
(2) PL
0.008”
(2) PL
0.013”
Circuit Pad Layout
GaAs Flip Chip PIN
Rev. V9
MA4GP907
3
3
MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
For further information and support please visit:
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DC-0007455
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Typical Performance Curves
Isolation
Insertion Loss Return Loss
-0.8
-0.6
-0.4
-0.2
0.0
010 20 30 40
5 mA
15 mA
50 mA
Insertion Loss (dB)
Frequency (GHz)
-40
-30
-20
-10
0
010 20 30 40
5 mA
15 mA
50 mA
Return Loss (dB)
Frequency (GHz)
-35
-30
-25
-20
-15
-10
-5
0
010 20 30 40
0 V
10 V
Isolation (dB)
Frequency (GHz)
GaAs Flip Chip PIN
Rev. V9
MA4GP907
4
4
MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
DC-0007455
4
Cleanliness
This device should be handled in a clean
environment. The chip is resistant to solvents and
may be cleaned using approved industry standard
practices and chemicals.
Static Sensitivity
Gallium Arsenide PIN diodes are ESD sensitive and
can be damaged by static electricity. Proper ESD
handling techniques should be used in a static-free
environment. These devices are rated Class 0 HBM
per MIL-STD-883, method 3015.7.
General Handling
The die has a polymer layer which provides scratch
protection for the junction area and the anode air
bridge. Die can be handled with plastic tweezers or
picked and placed with a #27 tip vacuum pencil.
Assembly Requirements
Electrically Conductive Silver Epoxy:
The MA4GP907 is designed to be inserted onto hard
or soft substrates with the junction/pad side down. It
can be mounted onto a silk-screened circuit using
electrically conductive silver epoxy which is approxi-
mately 1 - 2 mils thick and cured at approximately
90°C to 150°C per manufacturer’s schedule. For
extended cure times, >30 minutes, temperatures
must be kept below 200°C.
Solder Die Attached:
The MA4GP907 and the MA4AGP907 (AlGaAs) PIN
diode, which both employ the same contact pad
metalization scheme (T-W-Au), must use a solder
that contains <30% Sn by weight for a reliable die
attach to a circuit. An example is a eutectic
80Au/20Sn.
Tin rich solders (>30% Sn by weight) are not
recommended as they will scavenge the gold on the
contact pads, exposing the tungsten metalization
beneath and creating a poor solder connection.
Note:
For an AlGaAs solderable PIN diode version (with
Cu-Ni-Au contact pads) where both 60Sn/40Pb (non
RoHS) and 96Sn/4Ag (RoHS) type solders can be
used, please refer to MACOM’s MAPD-000907-
14020.
GaAs Flip Chip PIN
Rev. V9
MA4GP907
5
5
MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
DC-0007455
5
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