HMC263(V02) View Datasheet(PDF) - Hittite Microwave
Part Name
Description
MFG CO.
HMC263 Datasheet PDF : 8 Pages
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v02.0701
MICROWAVE CORPORATION
Assembly Diagrams
HMC263
GaAs MMIC LOW NOISE
AMPLIFIER, 24 - 36 GHz
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Mounting & Bonding Techniques for Millimeterwave GaAs MMICs
The die should be attached directly to the ground plane eutectically or with conductive epoxy (see HMC general Han-
dling, Mounting, Bonding Note).
50 Ohm Microstrip transmission lines on 0.127mm (5 mil) thick alumina thin film substrates are recommended for bring-
ing RF to and from the chip (Figure 1). If 0.254mm (10 mil) thick alumina thin film substrates must be used, the die
should be raised 0.150mm (6 mils) so that the surface of the die is coplanar with the surface of the substrate. One
way to accomplish this is to attach the 0.102mm (4 mil) thick die to a 0.150mm (6 mil) thick molybdenum heat spreader
(moly-tab) which is then attached to the ground plane (Figure 2).
Microstrip substrates should brought as close to the die as possible in order to minimize bond wire length. Typical die-
to-substrate spacing is 0.076mm to 0.152 mm (3 to 6 mils).
An RF bypass capacitor should be used on the Vdd input. A 100 pF single layer capacitor (mounted eutectically or by
conductive epoxy) placed no further than 0.762mm (30 Mils) from the chip is recommended.
Ribbon Bond
Ribbon Bond
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
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