A quick search turned this up:
http://www.eleceng.adelaide.edu.au/Personal/alsarawi/Packaging/node44.html#SECTION00423400000000000000
http://www.castles-of-britain.com/castle38.htm From here the following:
castellation: battlements. Implying use as decorative feature.
Or from here:
http://archnet.uconn.edu/archnet/topical/ceramic/hgloss/hgloss.html
Castellations provide relief to the vessel rim or opening. This practice
often results in a series of 'points' around the rim and produces a
squared, rather than round vessel opening. The manufacture of castellations
on pottery is relatively uncommon.
Or from here: http://hometown.aol.com/grobnet/scotcas.htm
The castellation of Scotland falls
into Several categories: (1) There
were the strongholds of the ancient
British and Pictish kindoms
(Dumbarton, Stirling, Edinburgh);
(2) the fortresses of the
conquerors (Argyll Scots:
Dunstaffnage, Tioram / Normans:
Duffus, Dirleton, Bothwell,
Kildrummy); (3) the Great Barons
(Doune, Tantallon); (4) the Bishops
and Earls and Kings (Kirkwall,
Falkland, Dunfermline); (5) the
Lairds (a multitude ranging from
mansions like Cawdor to simple
tower houses like Smailholm); (6)
the military (Blackness, Fort
Augustus); and finally (7) the
Georgian Victorian Baronial style
(Glamis, Balmoral, Culzean)
Brooks Bill
<bbrooks@ZONE To: [log in to unmask]
WORX.COM> cc:
Sent by: Subject: Re: [TN] Castellated / Castellation
TechNet
<[log in to unmask]
ORG>
08/29/00
11:20 AM
Please
respond to
"TechNet
E-Mail
Forum.";
Please
respond to
Brooks Bill
I was told by my MFG ENGR that Castle - ation comes from the shape along
the
top of the wall in the living place of the Knights and Lords of England,
Whales, Spain etc. I was asked to make a 'castellated' footprint for a
DPAK
transistor so it would create a solder fillet around the top of the
mounting
tab...
___ ___
| | | |
-- --- ---
Does anyone else know more about this term and whence it came?
Bill Brooks
Senior PCB Designer - [log in to unmask] <mailto:[log in to unmask]>
Zoneworx, Inc.
40925 County Center Drive, STE 200
Temecula, CA 92591
http://www.zoneworx.com
Tel: (909) 296-1226 x 1037
Co-Director / Education Officer / Webmaster
for the San Diego Chapter of the IPC Designers Council
http://www.ipc.org/SanDiego/index.html
http://home.fda.net/bbrooks/pca/
-----Original Message-----
From: Stephen R. Gregory [mailto:[log in to unmask]]
Sent: Tuesday, August 29, 2000 9:12 AM
To: [log in to unmask]
Subject: Re: [TN] Castellated / Castellation
In a message dated 08/29/2000 11:00:03 AM Central Daylight Time,
[log in to unmask] writes:
> So what exactly is castellation / castellated?
>
> Our Sales Manager asked me this yesterday, I believed it to be something
> to do with metallization but that's as far as I could go, your input
> would be helpful, thanks
>
> Franklin D Asbell
> Network Circuits, Inc.
Hi Franklin!
It's a type of soldering termination on a part, instead of being leaded,
it's
lead-less. Usually a half-round plated area on the sides of a part...
Go to my pictures and you can see what one looks like (with bubbly plating
and all...)
http://www.driveway.com/share?sid=e25a88c4.8e904&name=Pictures
-Steve Gregory-
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