IPC-SM-782A 表面安装设计和焊盘设计标准(带BGA).pdf - 第153页

5.0 LAND PATTERN DIMENSIONS In this subsection, Figures 3a–3d provide the land pattern dimensions for SQFP (Square) components. These numbers represent industry consensus on the best dimensions based on empirical knowled…

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4.0 COMPONENT DIMENSIONS
In this subsection, Figures 2a–2d provide the component
dimensions for SQFP (Square) components. (Also see
pages 4, 6 and 8.)
Component
Identifier
L (mm) S (mm) W (mm) T (mm)
A
(mm)
B
(mm)
P
(mm)
H
(mm)
min max min max min max min max ref ref basic max
SQFP 5X5-24 6.80 7.20 5.20 5.89 0.10 0.30 0.40 0.80 5.00 5.00 0.50 1.70
SQFP 5X5-32 6.80 7.20 5.20 5.89 0.10 0.30 0.40 0.80 5.00 5.00 0.50 1.70
SQFP 5X5-32-F 6.80 7.20 5.20 5.89 0.05 0.22 0.40 0.80 5.00 5.00 0.40 1.70
SQFP 5X5-40 6.80 7.20 5.20 5.89 0.05 0.22 0.40 0.80 5.00 5.00 0.40 1.70
SQFP 5X5-48 6.80 7.20 5.20 5.89 0.05 0.15 0.40 0.80 5.00 5.00 0.30 1.70
SQFP 5X5-56 6.80 7.20 5.20 5.89 0.05 0.15 0.40 0.80 5.00 5.00 0.30 1.70
SQFP 6X6-32 7.80 8.20 6.20 6.89 0.10 0.30 0.40 0.80 6.00 6.00 0.50 1.70
SQFP 6X6-40 7.80 8.20 6.20 6.89 0.10 0.30 0.40 0.80 6.00 6.00 0.50 1.70
SQFP 6X6-40-F 7.80 8.20 6.20 6.89 0.05 0.22 0.40 0.80 6.00 6.00 0.40 1.70
SQFP 6X6-48 7.80 8.20 6.20 6.89 0.05 0.22 0.40 0.80 6.00 6.00 0.40 1.70
SQFP 6X6-56 7.80 8.20 6.20 6.89 0.05 0.15 0.40 0.80 6.00 6.00 0.30 1.70
SQFP 6X6-64 7.80 8.20 6.20 6.89 0.05 0.15 0.40 0.80 6.00 6.00 0.30 1.70
SQFP 7X7-40 8.80 9.20 7.20 7.89 0.10 0.30 0.40 0.80 7.00 7.00 0.50 1.70
SQFP 7X7-48 8.80 9.20 7.20 7.89 0.10 0.30 0.40 0.80 7.00 7.00 0.50 1.70
SQFP 7X7-56 8.80 9.20 7.20 7.89 0.05 0.22 0.40 0.80 7.00 7.00 0.40 1.70
SQFP 7X7-64 8.80 9.20 7.20 7.89 0.05 0.22 0.40 0.80 7.00 7.00 0.40 1.70
SQFP 7X7-72 8.80 9.20 7.20 7.89 0.05 0.15 0.40 0.80 7.00 7.00 0.30 1.70
SQFP 7X7-80 8.80 9.20 7.20 7.89 0.05 0.15 0.40 0.80 7.00 7.00 0.30 1.70
Figure 2a SQFP (Square) component dimensions
S
L
0~ 0.25
B
A
W
P
▼
▼
▼
▼
▼
▼
▼
▼
▼
▼
▼
▼
▼
▼
0~ 10°
T
▼
▼
▼
▼
H
IPC-782-11-2-2a
IPC-SM-782
Subject
SQFP/QFP (Square)
Date
5/96
Section
11.2
Revision
A
Page2of10
电子技术应用　　　　　ｗｗｗ．ＣｈｉｎａＡＥＴ．ｃｏｍ
5.0 LAND PATTERN DIMENSIONS
In this subsection, Figures 3a–3d provide the land pattern
dimensions for SQFP (Square) components. These numbers
represent industry consensus on the best dimensions based
on empirical knowledge of fabricated land patterns. (Also see
pages 5, 7, and 9.)
In the table, the dimensions shown are at maximum material
condition (MMC). The least material condition (LMC) should
not exceed the fabrication (F) allowance shown on page 10.
The LMC and the MMC provide the limits for each dimension.
The dotted line in Figure 3 shows the grid placement court-
yard which is the area required to place land patterns and
their respective components in adjacent proximity without
interference or shorting. Numbers in the table represent the
number of grid elements (each element is 0.5 by 0.5 mm) in
accordance with the international grid detailed in IEC publica-
tion 97.
RLP No. Component Identifier Z (mm) G (mm) X (mm)
Y (mm) C (mm) D (mm) E (mm)
Placement Grid
(No. of Grid
Elements)ref ref ref ref
550A SQFP 5x5-24 7.80 4.60 0.30 1.60 6.20 2.50 0.50 18x18
551A SQFP 5x5-32 7.80 4.60 0.30 1.60 6.20 3.50 0.50 18x18
552A SQFP 5x5-32-F 7.80 4.60 0.25 1.60 6.20 2.80 0.40 18x18
553A SQFP 5x5-40 7.80 4.60 0.25 1.60 6.20 3.60 0.40 18x18
554A SQFP 5x5-48 7.80 4.60 0.17 1.60 6.20 3.30 0.30 18x18
555A SQFP 5x5-56 7.80 4.60 0.17 1.60 6.20 3.90 0.30 18x18
556A SQFP 6x6-32 8.80 5.60 0.30 1.60 7.20 3.50 0.50 20x20
557A SQFP 6x6-40 8.80 5.60 0.30 1.60 7.20 4.50 0.50 20x20
558A SQFP 6x6-40-F 8.80 5.60 0.25 1.60 7.20 3.60 0.40 20x20
559A SQFP 6x6-48 8.80 5.60 0.25 1.60 7.20 4.40 0.40 20x20
560A SQFP 6x6-56 8.80 5.60 0.17 1.60 7.20 3.90 0.30 20x20
561A SQFP 6x6-64 8.80 5.60 0.17 1.60 7.20 4.50 0.30 20x20
562A SQFP 7x7-40 9.80 6.60 0.30 1.60 8.20 4.50 0.50 22x22
563A SQFP 7x7-48 9.80 6.60 0.30 1.60 8.20 5.50 0.50 22x22
564A SQFP 7x7-56 9.80 6.60 0.25 1.60 8.20 5.20 0.40 22x22
565A SQFP 7x7-64 9.80 6.60 0.25 1.60 8.20 6.00 0.40 22x22
566A SQFP 7x7-72 9.80 6.60 0.17 1.60 8.20 5.10 0.30 22x22
567A SQFP 7x7-80 9.80 6.60 0.17 1.60 8.20 5.70 0.30 22x22
Figure 3a SQFP (Square) land pattern dimensions
Y
X
Full radius
optional
▼
▼
▼
▼
▼
▼
▼
▼
▼
▼
▼
E
▼
▼
C
▼
▼
GZ
▼
▼
▼
▼
Grid placement courtyard
▼
D
▼
▼
D
▼
▼
IPC-782-11-2-3a
IPC-SM-782
Subject
SQFP/QFP (Square)
Date
5/96
Section
11.2
Revision
A
Page3of10
电子技术应用　　　　　ｗｗｗ．ＣｈｉｎａＡＥＴ．ｃｏｍ
Component
Identifier
L (mm) S (mm) W (mm) T (mm)
A
(mm)
B
(mm)
P
(mm)
H
(mm)
min max min max min max min max ref ref basic max
QFP 10x10-44 12.95 13.45 11.05 11.71 0.30 0.45 0.65 0.95 10.00 10.00 0.80 2.45
QFP 10x10-52 12.95 13.45 11.05 11.71 0.22 0.38 0.65 0.95 10.00 10.00 0.65 2.45
SQFP 10x10-64 11.80 12.20 10.20 10.89 0.10 0.30 0.40 0.80 10.00 10.00 0.50 2.20
SQFP 10x10-72 11.80 12.20 10.20 10.89 0.10 0.30 0.40 0.80 10.00 10.00 0.50 2.20
SQFP 10x10-80 11.80 12.20 10.20 10.89 0.05 0.22 0.40 0.80 10.00 10.00 0.40 2.20
SQFP 10x10-88 11.80 12.20 10.20 10.89 0.05 0.22 0.40 0.80 10.00 10.00 0.40 2.20
SQFP 10x10-112 11.80 12.20 10.20 10.89 0.05 0.15 0.40 0.80 10.00 10.00 0.30 2.20
SQFP 10x10-120 11.80 12.20 10.20 10.89 0.05 0.15 0.40 0.80 10.00 10.00 0.30 2.20
QFP 12x12-48 15.00 15.50 13.05 13.71 0.30 0.45 0.65 0.95 12.00 12.00 0.80 2.45
QFP 12x12-64 15.00 15.50 13.05 13.71 0.22 0.38 0.65 0.95 12.00 12.00 0.65 2.45
SQFP 12x12-80 13.80 14.20 12.20 12.89 0.10 0.30 0.40 0.80 12.00 12.00 0.50 2.20
SQFP 12x12-88 13.80 14.20 12.20 12.89 0.10 0.30 0.40 0.80 12.00 12.00 0.50 2.20
SQFP 12x12-100 13.80 14.20 12.20 12.89 0.05 0.22 0.40 0.80 12.00 12.00 0.40 2.20
SQFP 12x12-108 13.80 14.20 12.20 12.89 0.05 0.22 0.40 0.80 12.00 12.00 0.40 2.20
SQFP 12x12-136 13.80 14.20 12.20 12.89 0.05 0.15 0.40 0.80 12.00 12.00 0.30 2.20
SQFP 12x12-144 13.80 14.20 12.20 12.89 0.05 0.15 0.40 0.80 12.00 12.00 0.30 2.20
QFP 14x14-64 16.95 17.45 15.05 15.71 0.30 0.45 0.65 0.95 14.00 14.00 0.80 2.45
QFP 14x14-80 16.95 17.45 15.05 15.71 0.22 0.38 0.65 0.95 14.00 14.00 0.65 2.45
SQFP 14x14-100 15.80 16.20 14.20 14.89 0.10 0.30 0.40 0.80 14.00 14.00 0.50 2.20
SQFP 14x14-108 15.80 16.20 14.20 14.89 0.10 0.30 0.40 0.80 14.00 14.00 0.50 2.20
SQFP 14x14-120 15.80 16.20 14.20 14.89 0.05 0.22 0.40 0.80 14.00 14.00 0.40 2.20
SQFP 14x14-128 15.80 16.20 14.20 14.89 0.05 0.22 0.40 0.80 14.00 14.00 0.40 2.20
SQFP 14x14-168 15.80 16.20 14.20 14.89 0.05 0.15 0.40 0.80 14.00 14.00 0.30 2.20
SQFP 14x14-176 15.80 16.20 14.20 14.89 0.05 0.15 0.40 0.80 14.00 14.00 0.30 2.20
Figure 2b SQFP/QFP (square) component dimensions
S
L
0~ 0.25
B
A
W
P
▼
▼
▼
▼
▼
▼
▼
▼
▼
▼
▼
▼
▼
▼
0~ 10°
T
▼
▼
▼
▼
H
IPC-782-11-2-2b
IPC-SM-782
Subject
SQFP/QFP (Square)
Date
5/96
Section
11.2
Revision
A
Page4of10
电子技术应用　　　　　ｗｗｗ．ＣｈｉｎａＡＥＴ．ｃｏｍ