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CM1205_11 Datasheet, PDF (3/5 Pages) ON Semiconductor – 8-Channel ESD Protection Array in Chip Scale Package | |||
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CM1205
APPLICATION INFORMATION
Refer to Application Note âThe Chip Scale Packageâ, for a detailed description of Chip Scale Packages offered by
ON Semiconductor.
Table 4. PRINTED CIRCUIT BOARD RECOMMENDATIONS
Parameter
Pad Size on PCB
Pad Shape
Pad Definition
Solder Mask Opening
Solder Stencil Thickness
Solder Stencil Aperture Opening (laser cut, 5% tapered walls)
Solder Flux Ratio
Solder Paste Type
Pad Protective Finish
Tolerance â Edge To Corner Ball
Solder Ball Side Coplanarity
Maximum Dwell Time Above Liquidous
Maximum Soldering Temperature
Value
0.275 mm
Round
NonâSolder Mask defined pads
0.350 mm Round
0.125 â 0.150 mm
0.330 mm Round
50/50 by volume
No Clean
OSP (Entek Cu Plus 106A)
±50 mm
±20 mm
60 seconds
260°C
NonâSolder Mask Defined Pad
0.275 mm DIA.
Solder Stencil Opening
0.330 mm DIA.
Solder Mask Opening
0.325 mm DIA.
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ
Figure 1. Recommended NonâSolder Mask Defined Pad Illustration
Figure 2. Leadâfree (SnAgCu) Solder Ball Reflow Profile
http://onsemi.com
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