IPC-SM-782A-表面贴装焊盘图形设计标准.pdf.pdf - 第154页

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 1 1.05 1 1.71 0.30 0.45 0.65 0.95 10.00 10.00 0.80 2.45 QFP 10x10-52 …

100%1 / 228
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
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
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 basic ref ref
570A QFP 10x10-44 13.80 10.20 0.50 1.80 12.00 8.00 0.80 30x30
571A QFP 10x10-52 13.80 10.20 0.40 1.80 12.00 7.80 0.65 30x30
572A SQFP 10x10-64 12.80 9.60 0.30 1.60 11.20 7.50 0.50 28x28
573A SQFP 10x10-72 12.80 9.60 0.30 1.60 11.20 8.50 0.50 28x28
574A SQFP 10x10-80 12.80 9.60 0.25 1.60 11.20 7.60 0.40 28x28
575A SQFP 10x10-88 12.80 9.60 0.25 1.60 11.20 8.40 0.40 28x28
576A SQFP 10x10-112 12.80 9.60 0.17 1.60 11.20 8.10 0.30 28x28
577A SQFP 10x10-120 12.80 9.60 0.17 1.60 11.20 8.70 0.30 28x28
580A QFP 12x12-48 16.00 12.40 0.50 1.80 14.20 8.80 0.80 34x34
581A QFP 12x12-64 16.00 12.40 0.40 1.80 14.20 9.75 0.65 34x34
582A SQFP 12x12-80 14.80 11.60 0.30 1.60 13.20 9.50 0.50 32x32
583A SQFP 12x12-88 14.80 11.60 0.30 1.60 13.20 10.50 0.50 32x32
584A SQFP 12x12-100 14.80 11.60 0.25 1.60 13.20 9.60 0.40 32x32
585A SQFP 12x12-108 14.80 11.60 0.25 1.60 13.20 10.40 0.40 32x32
586A SQFP 12x12-136 14.80 11.60 0.17 1.60 13.20 9.90 0.30 32x32
587A SQFP 12x12-144 14.80 11.60 0.17 1.60 13.20 10.50 0.30 32x32
590A QFP 14x14-64 17.80 14.20 0.50 1.80 16.00 12.00 0.80 38x38
591A QFP 14x14-80 17.80 14.20 0.40 1.80 16.00 12.35 0.65 38x38
592A SQFP 14x14-100 16.80 13.60 0.30 1.60 15.20 12.00 0.50 36x36
593A SQFP 14x14-108 16.80 13.60 0.30 1.60 15.20 13.00 0.50 36x36
594A SQFP 14x14-120 16.80 13.60 0.25 1.60 15.20 11.60 0.40 36x36
595A SQFP 14x14-128 16.80 13.60 0.25 1.60 15.20 12.40 0.40 36x36
596A SQFP 14x14-168 16.80 13.60 0.17 1.60 15.20 12.30 0.30 36x36
597A SQFP 14x14-176 16.80 13.60 0.17 1.60 15.20 12.90 0.30 36x36
Figure 3b SQFP/QFP (square) land pattern dimensions
Y
X
Full radius
optional
▼
▼
▼
▼
▼
▼
▼
▼
▼
▼
▼
E
▼
▼
C
▼
▼
GZ
▼
▼
▼
▼
Grid placement courtyard
▼
D
▼
▼
D
▼
▼
IPC-782-11-2-3b
IPC-SM-782
Subject
SQFP/QFP (Square)
Date
5/96
Section
11.2
Revision
A
Page5of10