29–32 GHz Surface Mount Medium Power Amplifier
AA032P1-A4
Alpha-2TM Surface Mount Package
Handling and Mounting
Via Holes
to Ground
DC Connections
Millimeterwave components require careful mounting
design to maintain optimal performance. The Alpha-2TM
surface mount package (patent pending) provides a
rugged and repeatable electrical connection using
standard solder techniques.
RF In
RF Out
The -A4 package is one of several parts in the Alpha-2TM
surface mount package family.
Handling
The -A4 surface mount package is very rugged. However,
due to ceramic’s brittle nature, one should exercise care
when handling with metal tools. Do not apply heavy
pressure to the lid.Vacuum tools may be used to pick and
place this part.
DC Connections
Footprint Geometry for -A4 Surface Mount Package.
Only personnel trained in both ESD precautions and
handling precautions should be allowed to handle these
packages.
Mounting footprint geometry for the -A4 package will be
supplied by Alpha Industries in electronic format upon request.
Package Construction
Mounting the Package
The -A4 surface mount package consists of a base and
a lid. The package base is ceramic with filled vias and
plated castellations.The package lid is unplated alumina.
The lid seal is epoxy.
The -A4 surface mount package is compatible with high-
volume surface mount installation using solder. RF and DC
connections are accomplished with metallized edge
castellations that hold solder fillets. Ground connections are
accomplished by both metallized edge castellations and
filled vias to the bottom of the package. Care should be
taken to ensure that there are no voids or gaps in the solder
so that good RF, DC and ground contact is maintained.
Mounting Design
The -A4 surface mount package is installed on top of a printed
circuit board on a specially designed footprint.
DC Bias Lines
(Up to 3 per side)
Electrically & Thermally
Conductive Ground Plane
RF In
RF Out
Printed Circuit Board
Rogers 4003,
0.008" (0.20 mm) Thick
or Equivalent
DC Bias Lines
(Up to 3 per side)
-A4 Surface Mount Package Installation.
4
Alpha Industries, Inc. [978] 241-7000 • Fax [978] 241-7906 • Email sales@alphaind.com • www.alphaind.com
Specifications subject to change without notice. 1/02A
ALPHA [ ALPHA INDUSTRIES ]
