The number one problem with PCB board routing that we encounter that can be attributed to the layout personnel is:
Routing high speed signal traces without regard for return current paths. Either the signals are routed across splits in the reference plane or the signal switches layers and the new reference plane doesn't have a good path to the old plane. Both problems result in higher emissions and poor signal integrity. Earl Morse Portable Division EMC Design Compaq Computer Corporation Phone: 281.927.3607 Pager: 713.717.0824 Fax: 281.927.3654 Email: [email protected] <mailto:[email protected]> Emissions Control Laboratory 10320 Rodgers Road, EC106 Houston, TX 77070 -----Original Message----- From: [email protected] [mailto:[email protected]] Sent: Friday, January 21, 2000 6:48 AM To: [email protected] Subject: EMC Circuit Board Design Dear List-Members, I am requesting information/opinions/etc. on the following: When circuit boards are designed, what are the common mistakes that the circuit board designers make regarding EMC (multi-layer boards in particular)? You can respond to me directly but I would prefer a response to the list as I believe that the question is of interest to many on this list-server. In either event I will compile the responses and resend the compilation later. Thanks for your time, Bob Heller 3M Company --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to [email protected] with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to [email protected], [email protected], [email protected], or [email protected] (the list administrators). --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to [email protected] with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to [email protected], [email protected], [email protected], or [email protected] (the list administrators).
