MASW-011021
HMIC
TM
Silicon PIN Diode SPDT Switch
6 - 14 GHz
Features
Specified from 8 GHz to 12 GHz
Low Insertion Loss
High Isolation
Low Parasitic Capacitance and Inductance
Surface Mountable, Fully Monolithic Die
Glass Encapsulated Construction
20 W Pulsed Power Handling
5
Silicon Nitride Passivation
Polymer Scratch Protection
RoHS* Compliant
Rev. V2
Die Bond Pad Layout
Description
This device is a Surmount™ X-Band monolithic
SPDT switch designed for high power, high
performance applications. This Surface Mount
chipscale configuration is designed with minimal
parasitics usually associated with hybrid MIC
designs incorporating beam lead and/or bondable
PIN diodes that require chip and wire assembly.
This device is
fabricated
using M/A-COM
Technology Solutions’ patented HMIC™ (Heterolithic
Microwave Integrated Circuit) process, US Patent
5,268,310. This process allows the incorporation of
silicon pedestals that form series and shunt diodes
and/or vias by embedding them in low loss, low
dispersion glass.
Selective backside metalization is applied producing
a surface mount device. The topside is fully
encapsulated with silicon nitride and has an
additional polymer layer for scratch and impact
protection. These protective coatings prevent
damage to the junction and the anode airbridge
during handling and assembly.
Functional Schematic
Pin Configuration
1
Pin
J1
J2
J3
B1
B2
Function
RF C
RF 1
RF 2
Bias 1
Bias 2
1. The exposed pad centered on the chip bottom must be
connected to RF and DC ground.
Ordering Information
2
Part Number
MASW-011021-14010G
MASW-011021-001SMB
Package
25 piece gel pack
Sample Test Board
2. Reference Application Note M513 for reel size information.
*Restrictions on Hazardous Substances, European Union Directive 2002/95/EC.
1
ADVANCED:
Data Sheets contain information regarding a product M/A-COM Technology Solutions
•
North America
Tel: 800.366.2266 •
Europe
Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
•
India
Tel: +91.80.43537383
•
China
Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
PRELIMINARY:
Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
MASW-011021
HMIC
TM
Silicon PIN Diode SPDT Switch
6 - 14 GHz
Electrical Specifications: Bias: -5 V, +30 mA, T
A
= 25°C, P
IN
= 0 dBm, Z
0
= 50
Ω
Parameter
Insertion Loss
8 GHz
10 GHz
12 GHz
Input to Output Isolation
8 GHz
10 GHz
12 GHz
Return Loss
IIP3
Switching Speed
Voltage Rating
5
4
3
Rev. V2
Units
Min.
—
—
—
30
30
30
—
—
—
—
—
Typ.
0.70
0.70
0.65
34
36
34
15
60
130
200
10
Max.
0.85
0.85
0.85
—
—
—
—
—
—
—
—
dB
dB
dB
dBm
ns
V
W
CW Power Handling (-30 V, +30 mA)
3. Typical Switching Speed measured for 10% to 90 % of detected RF signal driven by TTL compatible drivers.
4. Maximum reverse leakage current in either the shunt or series PIN diodes shall be 0.1 µA maximum.
5. 20 W up to 300 µs 40% Duty Cycle
Absolute Maximum Ratings
6,7
Parameter
Operating Temperature
Storage Temperature
Junction Temperature
Applied Reverse Voltage
Bias Current +25°C
Absolute Maximum
-65°C to +125°C
-65°C to +150°C
+175°C
200 V
100 mA
Handling Procedures
Please observe the following precautions to avoid
damage:
Static Sensitivity
Silicon Integrated Circuits are sensitive to
electrostatic discharge (ESD) and can be damaged
by static electricity. Proper ESD control techniques
should be used when handling these Class 1A
HBM devices.
6. Exceeding any one or combination of these limits may cause
permanent damage to this device.
7. M/A-COM Technology Solutions does not recommend
sustained operation near these survivability limits.
2
ADVANCED:
Data Sheets contain information regarding a product M/A-COM Technology Solutions
•
North America
Tel: 800.366.2266 •
Europe
Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
•
India
Tel: +91.80.43537383
•
China
Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
PRELIMINARY:
Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
MASW-011021
HMIC
TM
Silicon PIN Diode SPDT Switch
6 - 14 GHz
Typical Performance Curves (on wafer probed results): Bias: -30 V, +30 mA
Insertion Loss
0.0
Rev. V2
Isolation
-30
-0.4
-32
-0.8
-34
-1.2
-36
-1.6
-38
-2.0
6
8
10
12
14
-40
6
8
10
12
14
Frequency (GHz)
Frequency (GHz)
Input Return Loss
-10
Output Return Loss
-10
-15
-15
-20
-20
-25
-25
-30
6
8
10
12
14
-30
6
8
10
12
14
Frequency (GHz)
Frequency (GHz)
3
ADVANCED:
Data Sheets contain information regarding a product M/A-COM Technology Solutions
•
North America
Tel: 800.366.2266 •
Europe
Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
•
India
Tel: +91.80.43537383
•
China
Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
PRELIMINARY:
Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
MASW-011021
HMIC
TM
Silicon PIN Diode SPDT Switch
6 - 14 GHz
Bias Control
Optimal operation is achieved by simultaneous
application of negative DC voltage to the low loss
switching arm and positive DC current to the
isolating switching arm.
In the low loss state, the diode is reverse biased with
voltage. In the isolated state, the shunt diode is
forward biased with current.
Minimum Reverse Bias Required:
At X-Band, with a 1:1 match, 5V of negative reverse
bias is required. With a 4:1 match, 10 V of negative
reverse bias is required
8
.
However M/A-COM Technology Solutions suggests
a reverse bias voltage of –30V to achieve optimal
insertion loss.
8. R. Caverly and G. Hiller, “Establishing the Minimum Reverse
Bias for a P-I-N Diode in a High Power Switch,” IEEE
Transactions on Microwave Theory and Techniques, Vol.38,
No.12, December 1990
Rev. V2
Handling Procedures
Attachment to a circuit board is made simple
through the use of standard surface mount technol-
ogy. Mounting pads are conveniently located on
the bottom surface of these devices and are re-
moved from the active junction locations. These
devices are well suited for solder attachment onto
hard and soft substrates. The use of 80Au/20Sn, or
RoHS compliant solders is recommended. For ap-
plications where the average power is
≤
1W, con-
ductive silver epoxy may also be used. Cure per
manufacturers recommended time and tempera-
ture. Typically 1 hour at 150°C.
When soldering these devices to a hard substrate,
a solder re-flow method is preferred. A vacuum tip
pick-up tool and a force of 60 to100 grams applied
to the top surface of the device while placing the
chip is recommended. When soldering to soft sub-
strates, such as Duroid, it is recommended to use a
soft solder at the circuit board to mounting pad in-
terface to minimize stress due to any TCE mis-
matches that may exist. Position the die so that its
mounting pads are aligned with the circuit board
mounting pads. Solder reflow should not be per-
formed by causing heat to flow through the top sur-
face of the die to the back. Since the HMIC glass is
transparent, the edges of the mounting pads can
be visually inspected through the die after attach-
ment is completed.
Typical re-flow profiles for Sn60/Pb40 and RoHS
compliant solders is provided in
Application Note
M538
, “Surface Mounting Instructions“ and can be
viewed on the MA-COM Technology Solutions
website @
www.macomtech.com
Driver Connections
Control Level
(DC Currents and Voltages)
Condition of
RF Output
B1
-30 V
B2
+30 mA
J1-J2
Low Loss
J1-J3
Isolation
+30 mA
-30 V
Isolation
Low Loss
Sample Board
Samples test boards are available upon request
4
ADVANCED:
Data Sheets contain information regarding a product M/A-COM Technology Solutions
•
North America
Tel: 800.366.2266 •
Europe
Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
•
India
Tel: +91.80.43537383
•
China
Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
PRELIMINARY:
Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
MASW-011021
HMIC
TM
Silicon PIN Diode SPDT Switch
6 - 14 GHz
Outline Drawing - Back Metal
Rev. V2
ALL DIMENTIONS ARE IN µm
PWB for testing purposes
5
ADVANCED:
Data Sheets contain information regarding a product M/A-COM Technology Solutions
•
North America
Tel: 800.366.2266 •
Europe
Tel: +353.21.244.6400
is considering for development. Performance is based on target specifications, simulated results,
•
India
Tel: +91.80.43537383
•
China
Tel: +86.21.2407.1588
and/or prototype measurements. Commitment to develop is not guaranteed.
Visit www.macomtech.com for additional data sheets and product information.
PRELIMINARY:
Data Sheets contain information regarding a product M/A-COM Technology
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.
M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
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