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From: "Spehro Pefhany"
Subject: Re: What are these terms in PCB design?
User-Agent: tin/pre-1.4-19990216 ("Styrofoam") (UNIX) (Linux/2.2.14 (i586))
Date: Thu, 03 Oct 2002 20:04:39 GMT
NNTP-Posting-Date: Thu, 03 Oct 2002 16:04:39 EDT
The renowned Ban wrote:
> Well, inside the LED there are two leads, one (the negative) is directly
> connected to the little metal reflector where the die is soldered to,
> whereas the other is bonded with a tiny wire to the top of the die.
Actually they can be either way. Which has fooled more than one assembler.
I use a silk-screen donut (to guide the long positive lead which is on
LEDs that we order) and a keyed outline silkscreen.
> If you use thermals here the theta goes way up.
So true. A trade-off.
"it's the network..." "The Journey is the reward"
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