REEL
User Feed Direction
DO
1x
DO
1x
DO
1x
DO
1x
CARRIER
TAPE
xx
xx
xx
xx
xx
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xx
DO
1x
DO
1x
DO
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DO
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USER
FEED
DIRECTION
COVER TAPE
Top View
End View
Empty Pocket/Cavity
Leader: 100 pocket – 1 Meter
Trailer: 100 pocket – 1 Meter
Figure 15. Device Orientation.
Solder temperatures and times in
excess of those given in the
guidelines of Table 1 may result
in damage to the duplexer or
changes in its characteristics.
Solder Recommendations
The recommended solder profile
for the FBAR duplexer is shown
in Figure 16. Guidelines and a
typical profile are both shown.
This typical profile was tested on
ten samples of the duplexer, each
of which was subjected to the
profile six times without effect
upon the mechanical or electrical
characteristics of the device.
The HPMD-7905 FBAR duplexer
(and its variants) is an assembly
consisting of two LCC ceramic
packages, containing the Tx and
Rx filters, mounted to a small
circuit board. Both packages on
the circuit board are mounted in
place using Sn96.5/Ag3.5 solder
(shaded in Table 1).
Table 1. Solder Compositions
Alloy type
Melting temp.
Recommended working
temperature (oC)
Comments
(oC)
Sn42Bi58
138
160 – 180
165 – 185
200 – 240
200 – 240
200 – 240
235 – 255
235 – 255
240 – 260
260 – 280
260 – 280
260 – 300
Lead free
Sn43Pb43Bi14
Sn63Pb37
144 – 163
183
Contains lead – some customers prohibit it.
Contains lead – some customers prohibit it.
Contains lead – some customers prohibit it.
May have oxidation problems
Sn60Pb40
186
Sn91/Zn9
199
Sn96.2Ag2.5Cu0.8Sb0.5
Sn95.8Ag3.5Cu0.7
Sn96.5Ag3.5
Sn100
216
Popular lead free composition
Other alloy ratios are available
Used in the assembly of duplexers
Too hot – will melt the duplexer
Too hot – will melt the duplexer
Too hot – will melt the duplexer
217
221
232
Sn95Sb5
235
Sn97Cu3
240
7
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