Try Dynamic Details, Inc. contact Connie Herring 858.385.9454. -----Original Message----- From: Ray Humphrey [mailto:[log in to unmask]] Sent: Saturday, March 31, 2001 11:47 AM To: [log in to unmask] Subject: [DC] Blind and Buried Vias In a recent posting, Your Opinoin Needed - Designers Learning Symposium, I notice that blind and buried vias were included in the 'newer technologies' category. I also find that most designers are reluctant to use blind and/or buried vias, for various reasons. Blind and buried vias have been around for over a decade, they are not new. I have a great article from the March 1988 issue of PCD magazine talking about the use of blind and buried vias down to 2 mils in size! I am frustrated that PCB fabricators are failing to keep up with the industry they support and continue to charge excessive prices for such an old process. Much of today's technology require the use of blind and/or buried vias - I say it is time for designers to get over their paranoia and for fabricators to stop taking advantage of it! Several days ago, I posted this question to the DC forum, "Could someone please give me a general guideline concerning the additional cost of using blind vias on a PCB? Perhaps there is someone out there in the PCB fabrication business or a fellow designer that has done some extensive research into this?" To date, I have not received a single response. Isn't it time we stopped considering blind and buried vias as a 'new technology'? Just my rant - I feel better, now. :) Ray ---------------------------------------------------------------------------- ----- DesignerCouncil Mail List provided as a free service by IPC using LISTSERV 1.8d To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF DesignerCouncil. To set a vacation stop for delivery of DesignerCouncil send: SET DesignerCouncil NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------- ----- --------------------------------------------------------------------------------- DesignerCouncil Mail List provided as a free service by IPC using LISTSERV 1.8d To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF DesignerCouncil. To set a vacation stop for delivery of DesignerCouncil send: SET DesignerCouncil NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------------