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Vishay Siliconix
Revision: 27-Apr-15
1
Document Number: 69378
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MICRO FOOT
®
: 4-Bumps
(1.6 mm x 1.6 mm, 0.8 mm Pitch, 0.290 mm Bump Height)
Notes
1. Bumps are 95.5/3.8/0.7 Sn/Ag/Cu.
2. Backside surface is coated with a Ti/Ni/Ag layer.
3. Non-solder mask defined copper landing pad.
4. Laser marks on the silicon die back.
5. “b1” is the diameter of the solderable substrate surface, defined by an opening in the solder resist layer solder mask defined.
6. • is the location of pin 1
Note
• Use millimeters as the primary measurement.
DIM.
MILLIMETERS INCHES
MIN. NOM. MAX. MIN. NOM. MAX.
A 0.550 0.575 0.600 0.0217 0.0226 0.0236
A1 0.260 0.275 0.290 0.0102 0.0108 0.0114
A2 0.290 0.300 0.310 0.0114 0.0118 0.0122
b 0.370 0.390 0.410 0.0146 0.0153 0.0161
b1 0.300 0.0118
e 0.800 0.0314
s 0.360 0.380 0.400 0.0141 0.0150 0.0157
D 1.520 1.560 1.600 0.0598 0.0614 0.0630
E 1.520 1.560 1.600 0.0598 0.0614 0.0630
K 0.155 0.185 0.215 0.0061 0.0073 0.0085
ECN: T15-0175-Rev. A, 27-Apr-15
DWG: 6038
A2A1
A
4x Ø b1
D
E
S
e
S
SeS
Mark on backside of die
XXXX
G
S
D
D
XXX
Note 5
Recommended land pattern
e
e
4x 0.30 to .31
(Note 3)
Solder mask-0.4
b
K
b1