26–33 GHz Surface Mount Single Balanced Down Converter Mixer
AM028S1-A2
64 Via Holes
“Alpha Two” Surface Mount Package
Handling and Mounting
IF
Millimeterwave components require careful mounting
design to maintain optimal performance. The Alpha Two
surface mount package (patent pending) provides a
rugged and repeatable electrical connection using
standard solder techniques.
LO
RF
Handling
The Alpha Two 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
Footprint Geometry for Alpha Two
heavy pressure to the lid. Vacuum tools may be used to
pick and place this part.
Surface Mount Package (for AM028S1-A2 mixer only)
Only personnel trained in both ESD precautions and
handling precautions should be allowed to handle these
packages.
Mounting the Package
The Alpha Two surface mount package is compatible with
high-volume surface mount installation using solder. RF,
LO and IF 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, LO, IF, and ground
contact is maintained.
Package Construction
The Alpha Two 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.
Mounting Design
The Alpha Two surface mount package is installed on top
of a printed circuit board on a specially designed footprint.
Mounting footprint geometry will be supplied by Alpha
Industries in electronic formats or paper drawing.
IF
LO
Printed Circuit Board
Rogers 4003
0.008" (0.20 mm) Thick
Solder Fillets
RF
Electrically & Thermally
Conductive Ground Plane
Alpha Two Surface Mount Package Installation
4
Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com
Specifications subject to change without notice. 6/01A
ALPHA [ ALPHA INDUSTRIES ]
