IP3088CX5_CX10_CX15_CX20 NXP Semiconductors, IP3088CX5_CX10_CX15_CX20 Datasheet - Page 10

• Manufacturer Part Number: IP3088CX5_CX10_CX15_CX20
• Description: IP3088CX5, IP3088CX10, IP3088CX15 and IP3088CX20 is a 2, 4, 6 and 8-channel LC low-pass filter array family which is designed to provide filtering of undesired RF signals on the I/O ports of portable communication or computing devices
• Manufacturer: NXP Semiconductors

NXP Semiconductors
9. Soldering of WLCSP packages
IP3088CX5_CX10_CX15_CX20_1
Product data sheet
9.1 Introduction to soldering WLCSP packages
9.2 Board mounting
9.3 Reflow soldering
This text provides a very brief insight into a complex technology. A more in-depth account
of soldering WLCSP (Wafer Level Chip-Size Packages) can be found in application note
AN10439 “Wafer Level Chip Scale Package” and in application note AN10365 “Surface
mount reflow soldering description”.
Wave soldering is not suitable for this package.
All NXP WLCSP packages are lead-free.
Board mounting of a WLCSP requires several steps:
Key characteristics in reflow soldering are:
Table 10.
Moisture sensitivity precautions, as indicated on the packing, must be respected at all
times.
Studies have shown that small packages reach higher temperatures during reflow
soldering, see
Package thickness (mm)
< 1.6
1.6 to 2.5
> 2.5
1. Solder paste printing on the PCB
2. Component placement with a pick and place machine
3. The reflow soldering itself
•
•
•
Lead-free versus SnPb soldering; note that a lead-free reflow process usually leads to
higher minimum peak temperatures (see
reducing the process window
Solder paste printing issues, such as smearing, release, and adjusting the process
window for a mix of large and small components on one board
Reflow temperature profile; this profile includes preheat, reflow (in which the board is
heated to the peak temperature), and cooling down. It is imperative that the peak
temperature is high enough for the solder to make reliable solder joints (a solder paste
characteristic) while being low enough that the packages and/or boards are not
damaged. The peak temperature of the package depends on package thickness and
volume and is classified in accordance with
Lead-free process (from J-STD-020C)
Figure
All information provided in this document is subject to legal disclaimers.
2, 4, 6 and 8-channel passive LC-filter network with ESD protection
Rev. 01 — 12 February 2010
12.
Package reflow temperature (°C)
Volume (mm
< 350
260
260
250
IP3088CX5/CX10/CX15/CX20
3
)
Figure
350 to 2 000
260
250
245
Table
12) than a PbSn process, thus
10.
> 2 000
260
245
245
© NXP B.V. 2010. All rights reserved.
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