Add to that the fact that operating voltages have decreased from 5V to under 2V, so it takes less time for a signal to change states.

Roger M. Stoops, CID+
Trimble Navigation Ltd., Dayton, OH, USA
Ph: +01 937.245.5288
Fax: +01 937.233.7511


-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Ahne Oosterhof
Sent: Friday, June 11, 2004 11:29 AM
To: [log in to unmask]
Subject: Re: [TN] Relation between physical size and frequency??


It's the other way around. As the chip gets smaller resulting from smaller
components on the chip that have lower capacitance which requires less
current to get them from one state to another (from '0' to '1' to from 'low'
to 'high') and it does not generate more heat!! and which allows you to do
it faster ---> higher frequency.
That is why chipmakers are racing towards nanometer technology (smaller
transistors and connecting runs) so that ultimately they need only one
electron to get form a zero to a one (except for a host of other problems).

Have a nice weekend.
Ahne.


-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Saravanan
Sent: Friday, June 11, 2004 5:06
To: [log in to unmask]
Subject: [TN] Relation between physical size and frequency??


Hi,
        Could some one explain me quantitatively why the physical size of an
electronic chip reduce in size as the operating frequency increases. I
remember the P2 processor is conspicuously bigger than the latest P4
processor. What is the reason behind?

Regards,
Saravanan.K

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 1.8e
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to
[log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to
[log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16
for additional information, or contact Keach Sasamori at [log in to unmask] or
847-509-9700 ext.5315
-----------------------------------------------------

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 1.8e
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315
-----------------------------------------------------

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 1.8e
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315
-----------------------------------------------------