Datasheet

LPC11E3X All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet Rev. 2.3 — 11 September 2014 64 of 71
NXP Semiconductors
LPC11E3x
32-bit ARM Cortex-M0 microcontroller
Fig 36. Reflow soldering for the HVQFN33 (7x7) package
Footprint information for reflow soldering of HVQFN33 package
001aao134
occupied area
solder land
solder resist
solder land plus solder paste
solder paste deposit
Dimensions in mm
Remark:
Stencil thickness: 0.125 mm
e = 0.65
evia = 4.25
OwDtot = 5.10 OA
PID = 7.25 PA+OA
OID = 8.20 OA
0.20 SR
chamfer (4×)
0.45 DM
evia = 1.05
W = 0.30 CU
evia = 4.25
evia = 2.40
LbE = 5.80 CU
LbD = 5.80 CU
PIE = 7.25 PA+OA
LaE = 7.95 CU
LaD = 7.95 CU
OIE = 8.20 OA
OwEtot = 5.10 OA
EHS = 4.85 CU
DHS = 4.85 CU
4.55 SR
4.55 SR
B-side
(A-side fully covered)
number of vias: 20
Solder resist
covered via
0.30 PH
0.60 SR cover
0.60 CU
SEhtot = 2.70 SP
SDhtot = 2.70 SP
GapE = 0.70 SP
SPE = 1.00 SP
0.45 DM
SPD = 1.00 SP
GapD = 0.70 SP