X-Authentication-Warning: delorie.com: mail set sender to geda-user-bounces using -f X-Recipient: geda-user AT delorie DOT com X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type:content-transfer-encoding:x-gm-message-state; bh=Y3ViY+NYH8h8etIgS2n5QIJK9yP5f5KVzk1pAoMQLE8=; b=SlMTVpxzJsFwS3qTSIOSpj/9DRfGxOPiJgdjlUcu7qZeoz0VQaZqytLfPKcOeRv9J1 tUalVkn2xj5Y5zUMZh16SxrKkz6UKIEuj3vOJjx991Tu/bLnQ9J8EexEtzBo6yS6m1X6 bTSC6uNDz3B8Tz3WK5DHUEG8G9jjoCEWunNWPQs8jjGlB6kTlik+1RtSrCF3JABc2gbJ hGQPwIclOE0o01udDdOH4Q+07c1NnlH2P8HHn8KJfn70dfTZLOBeGzRDBMPFh1eWwrnN +qYItMf/G1xOVrX/2p6UQJAdmhDSNobmsIzNEWWFwEqAKUzKjY7y8EvaMjRM3CyucwNw Dq1w== MIME-Version: 1.0 In-Reply-To: <37FD988D-FEBC-42EB-99CA-851EFD167D02@noqsi.com> References: <20121116030224 DOT 5c7750ee AT akka> <201211160225 DOT qAG2PrVD005630 AT envy DOT delorie DOT com> <20121116035513 DOT 14519 DOT qmail AT stuge DOT se> <201211160357 DOT qAG3vUXo017504 AT envy DOT delorie DOT com> <20121116041216 DOT 16057 DOT qmail AT stuge DOT se> <201211160428 DOT qAG4Sh3h018631 AT envy DOT delorie DOT com> <20121117163351 DOT 14988 DOT qmail AT stuge DOT se> <5C6FC5CD-A358-476D-A8CA-C9AF2E72A914 AT noqsi DOT com> <20121117185520 DOT 25698 DOT qmail AT stuge DOT se> <9C626D0F-7D63-4FBE-8D63-37A2FFAD96FE AT noqsi DOT com> <71EA2CF8-8F64-4A51-B7C4-5F26EE8F4088 AT noqsi DOT com> <20121119145732 DOT 2B114813BDB3 AT turkos DOT aspodata DOT se> <20121119182107 DOT 98F08813BDB7 AT turkos DOT aspodata DOT se> <4F02B9C0-5C7A-4C7B-A23C-C99285C4CFFB AT noqsi DOT com> <37FD988D-FEBC-42EB-99CA-851EFD167D02 AT noqsi DOT com> Date: Tue, 11 Dec 2012 12:09:46 -0800 Message-ID: Subject: Re: [geda-user] Translating SI notation to SPICE From: Russell Dill To: geda-user AT delorie DOT com Content-Type: text/plain; charset=UTF-8 X-Gm-Message-State: ALoCoQlsRT8oA52MxFINnK8SxrnJi8B/Kohus097z4SGs96Hq5GjclHmb7+ij0P6Ncmk8rFG6hKr Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by delorie.com id qBBK9opN001973 Reply-To: geda-user AT delorie DOT com Errors-To: nobody AT delorie DOT com X-Mailing-List: geda-user AT delorie DOT com X-Unsubscribes-To: listserv AT delorie DOT com Precedence: bulk >> The question in my mind is just what to do with the meter units you >> want to use. By all means we should have them but what is spice going >> to do with them? > > It is very common to specify the characteristics of elementary SPICE devices in terms of their geometry. In some cases, the dynamic range is extreme. MOSFET gate widths range from nanometers (components of fast, low fanout internal gates) to meters (folded up in power devices). Its also very important for simulating transmission lines, which as edge rates rise, will be come more and more important to the hobbist