mirror of
git://projects.qi-hardware.com/ben-wpan.git
synced 2024-07-05 05:47:40 +03:00
8703fc1a0b
- qfn.fpd: where were no measurements at all - added them - qfn.fpd: parametrize 0.1 mm border between central pad and land pattern and increase it from 0.1 mm to 5 mil (recommended by Adam Wang) - qfn.fpd: define solder paste of central pad separately and give it a 5 mil border to the pad edge, 10 mil to the copper edge (parameters recommended by Adam Wang)
121 lines
1.7 KiB
Plaintext
121 lines
1.7 KiB
Plaintext
/* MACHINE-GENERATED ! */
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frame center {
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set pin = pins+1
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set x = D2+2*go
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set y = E2+2*go
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set go = 5mil
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set gi = 5mil
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set spx = D2-2*gi
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set spy = E2-2*gi
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__0: vec @(x/2, y/2)
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__1: vec @(-x/2, -y/2)
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pad "$pin" . __0 bare
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__2: vec @(spx/2, -spy/2)
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__3: vec @(-spx/2, spy/2)
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pad "$pin" . __2 paste
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}
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frame pad {
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set px = (dx*X1+dy*Y1)/2
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set py = (dy*X1+dx*Y1)/2
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set pin = side*pins/4+i+1
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__0: vec @(px, py)
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__1: vec @(-px, -py)
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pad "$pin" __0 .
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__2: vec @(px, -py)
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}
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frame side {
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set pos = i-(pins/4-1)/2
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loop i = 0, pins/4-1
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__0: vec @(E*pos*dx, E*pos*dy)
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frame pad .
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}
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frame pads {
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table
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{ side, dx, dy }
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{ 0, 0, -1 }
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{ 1, 1, 0 }
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{ 2, 0, 1 }
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{ 3, -1, 0 }
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__0: vec @(dy*C1/2, -dx*C2/2)
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frame side .
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}
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frame index {
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}
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frame outline {
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table
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{ index, dx, _, dy }
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{ 1, -1, 0, 0 }
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{ 0, 0, 0, -1 }
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{ 0, 1, 0, 0 }
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{ 0, 0, 0, 1 }
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set mx = dx*C1/2
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set my = dy*C2/2
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set cx = mx+my
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set cy = my-mx
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set ax = -Y1/2*dx
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set ay = -Y1/2*dy
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set bx = -Y1/2*dy
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set by = Y1/2*dx
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__0: vec @(cx, cy)
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w: vec .(ax, ay)
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line __0 . w
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__2: vec __0(bx, by)
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line __0 . w
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__1: vec .(index*(ax-bx), index*(ay-by))
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line __2 . w
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}
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package "QFN$pins"
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unit mm
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table
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{ pins, X1, Y1, E, C1, C2, D2, E2 }
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{ 28, 0.25mm, 0.9mm, 0.5mm, 4.8mm, 4.8mm, 3.15mm, 3.15mm }
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{ 32, 0.29mm, 0.9mm, 0.5mm, 5.1mm, 5.1mm, 3.3mm, 3.3mm }
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set X2 = X1+(pins/4-1)*E
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set Y2 = X2
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set w = 5mil
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__0: vec @(D2/2, E2/2)
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frame pads @
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frame center @
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frame outline @
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measy side.__0 >> side.__0 3mm
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meas side.__0 -> side.__0 -1mm
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measy center.__1 >> center.__0 2mm
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measy pad.__1 >> pad.__1 3.5mm
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measy pad.__1 -> pad.__0 1mm
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meas pad.__1 -> pad.__2 -1mm
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measy center.__2 >> center.__3 -2mm
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