User’s Manual
39
Revision 1.3, 2013-08-14
Hardware Description
PAN1322-SPP
ENW89841A3KF
Assembly Guidelines
10.3
Solder Paste Printing
The solder paste deposited on the PCB by stencil printing has to be of eutectic or near eutectic tin leadfree / lead
composition. A no-clean solder paste is preferred, since cleaning of the solder joints is difficult because of the small
gap between the module and the PCB.
Preferred thickness of the solder paste stencil is 100 - 127 µm (4 - 5 mils). The apertures on the solder paste stencil
shall be of the same size as the pads, 0.6 mm.
10.4
Assembly
10.4.1
Component Placement
In order to assure a high yield, good placement on the PCB is necessary. As a rule of thumb the tolerable
misplacement is 150 µm. This means that the PAN1322 module can be assembled with a variety of placement
systems.
It is recommended to use a vision system capable of package pad recognition and alignment that evaluates the
pad locations on the package (in contrast to outline centring). This eliminates the pad to package edge tolerance.
The recommendation is to pick and place the module with a nozzle in the centre of the shield. The nozzle diameter
shall not be bigger than 4 mm.
10.4.2
Pin Mark
Pin 1 (A1) is marked on bottom footprint and on the top of the shield on the module according to
.
Diameter of pin 1 mark on the shield is 0.40 mm.
Pin 1 marking bottom side
PAN1322 01/01
ENW89841A3KF
1302401
FCC ID:T7VEBMU
F2
F3
F4
F5
F6
E1
E2
E3
E4
E5
E6
E7
E8
E9
D1
D2
D3
D4
D5
D6
D7
D8
C1
C2
C3
C4
C5
C6
C7
C8
B1
B2
B3
B4
B5
B6
B7
B8
B9
A2
A3
A4
A5
A6
A7
A8
A1
F9
F7
F1
F8
D9
C9
A9
Pin 1 marking top side
Figure 15
Pin Marking