KiCad Libraries
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Source at commit e01b8d64f9a8eb4596b10a0a6aa35c8177e6f1d6 created 11 years 9 months ago. By Werner Almesberger, modules/qfn.fpd: add experimental footprint for AD CP-16-5a* MQ_LFCSP_LQ | |
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1 | /* MACHINE-GENERATED ! */ |
2 | |
3 | frame paste_pad { |
4 | __0: vec @(SX/2, SY/2) |
5 | __1: vec @(-SX/2, -SY/2) |
6 | pad " " . __0 paste |
7 | } |
8 | |
9 | frame paste { |
10 | set x = SE*(xi-SNX/2-0.5) |
11 | |
12 | set y = SE*(yi-SNY/2-0.5) |
13 | |
14 | loop xi = 1, SNX |
15 | |
16 | loop yi = 1, SNY |
17 | |
18 | __0: vec @(x, y) |
19 | frame paste_pad . |
20 | } |
21 | |
22 | frame center { |
23 | set pin = pins+1 |
24 | |
25 | __0: vec @(X2/2, Y2/2) |
26 | __1: vec @(-X2/2, -Y2/2) |
27 | pad "$pin" . __0 bare |
28 | frame paste @ |
29 | } |
30 | |
31 | frame pad { |
32 | set px = (dx*X1+dy*Y1)/2 |
33 | |
34 | set py = (dy*X1+dx*Y1)/2 |
35 | |
36 | set pin = side*pins/4+i+1 |
37 | |
38 | __0: vec @(px, py) |
39 | __1: vec @(-px, -py) |
40 | pad "$pin" __0 . |
41 | __2: vec @(px, -py) |
42 | } |
43 | |
44 | frame side { |
45 | set pos = i-(pins/4-1)/2 |
46 | |
47 | loop i = 0, pins/4-1 |
48 | |
49 | __0: vec @(E*pos*dx, E*pos*dy) |
50 | frame pad . |
51 | } |
52 | |
53 | frame pads { |
54 | table |
55 | { side, dx, dy } |
56 | { 0, 0, -1 } |
57 | { 1, 1, 0 } |
58 | { 2, 0, 1 } |
59 | { 3, -1, 0 } |
60 | |
61 | __0: vec @(dy*C1/2, -dx*C2/2) |
62 | frame side . |
63 | } |
64 | |
65 | frame index { |
66 | } |
67 | |
68 | frame outline { |
69 | table |
70 | { index, dx, _, dy } |
71 | { 1, -1, 0, 0 } |
72 | { 0, 0, 0, -1 } |
73 | { 0, 1, 0, 0 } |
74 | { 0, 0, 0, 1 } |
75 | |
76 | set mx = dx*C1/2 |
77 | |
78 | set my = dy*C2/2 |
79 | |
80 | set cx = mx+my |
81 | |
82 | set cy = my-mx |
83 | |
84 | set ax = -Y1/2*dx |
85 | |
86 | set ay = -Y1/2*dy |
87 | |
88 | set bx = -Y1/2*dy |
89 | |
90 | set by = Y1/2*dx |
91 | |
92 | __0: vec @(cx, cy) |
93 | w: vec .(ax, ay) |
94 | line __0 . w |
95 | __2: vec __0(bx, by) |
96 | line __0 . w |
97 | __1: vec .(index*(ax-bx), index*(ay-by)) |
98 | line __2 . w |
99 | } |
100 | |
101 | package "QFN$pins-$variant" |
102 | unit auto |
103 | |
104 | table |
105 | { pins, variant, X1, Y1, X2, Y2, E, C1, C2, SE, SNX, SNY, SX, SY } |
106 | { 16, "LFCSP_LQ", 0.35mm, 1.2mm, 2.43mm, 2.43mm, 0.65mm, 4.1mm, 4.1mm, 1mm, 2, 2, 0.7mm, 0.7mm } |
107 | { 28, "Atmel", 0.24mm, 0.7mm, 2.4mm, 2.4mm, 0.45mm, 4.1mm, 4.1mm, 1mm, 2, 2, 0.8mm, 0.8mm } |
108 | { 28, "MCHP-ML", 0.37mm, 1mm, 4.25mm, 4.25mm, 0.65mm, 5.7mm, 5.7mm, 1mm, 3, 3, 0.65mm, 0.65mm } |
109 | { 28, "SiLabs", 0.25mm, 0.9mm, 3.3mm, 3.3mm, 0.5mm, 4.8mm, 4.8mm, 1.1mm, 3, 3, 0.9mm, 0.9mm } |
110 | { 32, "VHHD-2", 0.26mm, 0.69mm, 3.7mm, 3.7mm, 0.5mm, 5.1mm, 5.1mm, 0.8mm, 3, 3, 0.55mm, 0.55mm } |
111 | { 32, "VHHD-6", 0.26mm, 0.69mm, 3.4mm, 3.4mm, 0.5mm, 5.1mm, 5.1mm, 1.2mm, 2, 2, 0.75mm, 0.75mm } |
112 | |
113 | set w = 5mil |
114 | |
115 | set zone_ratio_35 = ((SNX-1)*SE+SX)*((SNY-1)*SE+SY)/(X2*Y2) |
116 | |
117 | set paste_ratio_20 = SX*SY*SNX*SNY/(X2*Y2) |
118 | |
119 | frame pads @ |
120 | frame center @ |
121 | frame outline @ |
122 | measy side.__0 >> side.__0 3mm |
123 | meas side.__0 -> side.__0 -1mm |
124 | measy center.__1 >> center.__0 2.3mm |
125 | measy pad.__1 >> pad.__1 3.5mm |
126 | measy pad.__1 -> pad.__0 1mm |
127 | meas pad.__1 -> pad.__2 -1mm |
128 | measy paste_pad.__1 -> paste_pad.__0 1.8mm |
129 | measy paste.__0 -> paste.__0 -C1 |
130 | measy paste_pad.__1 >> paste_pad.__0 -C1-1mm |
131 |
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