Following my rant.... I am providing an example.
The SI4390 is a power fet which comes in an SO8 Package
From the JEDEC JEP-95 standard this package is the MS-012AA
From the IPC-SM-782A standard the registered land pattern number is 300A
Steve Meier
v 20040111 1
B 300 300 900 1800 3 0 0 0 -1 -1 0 -1 -1 -1 -1 -1
P 300 1700 0 1700 1 0 1
{
T 200 1750 5 8 1 1 0 6 1
pinnumber=1
T 200 1750 5 8 0 0 0 6 1
pinseq=1
T 400 1700 9 10 1 1 0 0 1
pinlabel=S
T 0 1600 5 10 0 1 0 0 1
pintype=in
}
T 500 4900 5 10 0 0 0 0 1
device=SI4390DY
T 400 50 9 10 1 0 0 0 1
SI4390
T 1200 2200 8 10 1 1 0 6 1
refdes=U?
T 500 2600 9 10 0 0 0 0 1
numslots=1
T 500 2900 8 10 0 0 0 0 1
footprint=MS-012AA
P 1200 1700 1500 1700 1 0 1
{
T 1350 1750 5 8 1 1 0 0 1
pinnumber=8
T 1550 1750 5 8 0 0 0 0 1
pinseq=8
T 1050 1700 9 10 1 1 0 6 1
pinlabel=D
T 1300 1600 5 10 0 1 0 0 1
pintype=out
}
P 300 1300 0 1300 1 0 1
{
T 200 1350 5 8 1 1 0 6 1
pinnumber=2
T 200 1350 5 8 0 0 0 6 1
pinseq=2
T 400 1300 9 10 1 1 0 0 1
pinlabel=S
T 0 1200 5 10 0 1 0 0 1
pintype=in
}
P 300 900 0 900 1 0 1
{
T 200 950 5 8 1 1 0 6 1
pinnumber=3
T 200 950 5 8 0 0 0 6 1
pinseq=3
T 400 900 9 10 1 1 0 0 1
pinlabel=S
T 0 800 5 10 0 1 0 0 1
pintype=in
}
P 300 500 0 500 1 0 1
{
T 200 550 5 8 1 1 0 6 1
pinnumber=4
T 200 550 5 8 0 0 0 6 1
pinseq=4
T 400 500 9 10 1 1 0 0 1
pinlabel=G
T 0 400 5 10 0 1 0 0 1
pintype=in
}
P 1200 1300 1500 1300 1 0 1
{
T 1350 1350 5 8 1 1 0 0 1
pinnumber=7
T 1550 1350 5 8 0 0 0 0 1
pinseq=7
T 1050 1300 9 10 1 1 0 6 1
pinlabel=D
T 1300 1200 5 10 0 1 0 0 1
pintype=out
}
P 1200 900 1500 900 1 0 1
{
T 1350 950 5 8 1 1 0 0 1
pinnumber=6
T 1550 950 5 8 0 0 0 0 1
pinseq=6
T 1050 900 9 10 1 1 0 6 1
pinlabel=D
T 1300 700 5 10 0 1 0 0 1
pintype=out
}
P 1200 500 1500 500 1 0 1
{
T 1350 550 5 8 1 1 0 0 1
pinnumber=5
T 1550 550 5 8 0 0 0 0 1
pinseq=5
T 1050 500 9 10 1 1 0 6 1
pinlabel=D
T 1300 400 5 10 0 1 0 0 1
pintype=out
}
T 476 4250 8 10 0 1 0 0 1
comment=Copyright 2004 MRA Tek LLC
T 476 4050 8 10 0 1 0 0 1
comment=This symbol is distributed in the hope that it will be useful,
T 476 3850 8 10 0 1 0 0 1
comment=but WITHOUT ANY WARRANTY; without even the implied warranty of
T 476 3650 8 10 0 1 0 0 1
comment=MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
T 476 3250 8 10 0 0 0 0 1
documentation=http://www.vishay.com/docs/72150/72150.pdf
T 476 4550 8 10 0 0 0 0 1
description=N Channel Qg, Fast Switching WFET
#----------------------------------------------------------------------------------- # IPC Registered Land Pattern Number 300A # # Author: Stephen Meier # # email: [EMAIL PROTECTED] # # Version: 0.01 11/3/2004 Original # # Standards Compliance: # IPC-SM-782A SO8 # JEDEC JEP-95 MS-012AA # # Copyright (c) 2004 MRA Tek LLC # # This land pattern is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. # #-----------------------------------------------------------------------------------
Element(0x00000000 "SO8 MS-012AA" "U1" "SO8" 1410 2275 0 -70 0 100 0x00000000)
(
Pad[-3149 0 3149 0 2362 2362 1400 "1" "1" 0x00000000]
Pad[-3149 5000 3149 5000 2362 2362 1400 "2" "2" 0x00000100]
Pad[-3149 10000 3149 10000 2362 2362 1400 "3" "3" 0x00000100]
Pad[-3149 15000 3149 15000 2362 2362 1400 "4" "4" 0x00000100]
Pad[17323 0 23621 0 2362 2362 1400 "8" "8" 0x00000100]
Pad[17323 5000 23621 5000 2362 2362 1400 "7" "7" 0x00000100]
Pad[17323 10000 23621 10000 2362 2362 1400 "6" "6" 0x00000100]
Pad[17323 15000 23621 15000 2362 2362 1400 "5" "5" 0x00000100]
ElementLine( 56 -12 87 -12 10)
ElementLine( 87 -12 87 3 10)
ElementLine( 87 3 117 3 10)
ElementLine( 117 3 117 -12 10)
ElementLine( 117 -12 148 -12 10)
ElementLine( 148 -12 148 162 10)
ElementLine( 148 162 56 162 10)
ElementLine( 56 162 56 -12 10)
)
