thanks for the answer, i didn't know about this stuff (they did say for 2-sided)
it doesn't sound like you can or would solder to these if that is correct then you would have to add a via to any through hole parts that have a top side connection, right? now that i think about this sounds like the 'thru plate' the guys who make the mechanical proto milling machines hawk Dennis Saputelli Brad Velander wrote: > > Dennis, > the silver via through hole that they mention is the silver epoxy > ink via process. They mask the vias one side, feed in silver epoxy ink, mask > the topside and cure it. It is an inexpensive plating process for 2 sided > PCBs. It is also the only reliable through hole process for cheap CEM1 and > Phenolic type laminate materials because they cannot be typically > electroplated or can't be electroplated reliably. > > I would have to doubt that the silver via through hole process is > used for any multilayer assemblies if that is what you were reading into the > brochures. > > As for cost savings, they save costs by using the cheaper laminates, > punching holes instead of drilling. The 20 - 30% savings is probably a > little on the conservative side because the laminates are that much cheaper > then FR4. The additional savings would typically be from punching holes. The > silver via process itself is not that much cheaper then electroplating, you > save on the laminate and the punching costs. > > Sincerely, > Brad Velander. > > Lead PCB Designer > Norsat International Inc. > Microwave Products > Tel (604) 292-9089 (direct line) > Fax (604) 292-9010 > email: [EMAIL PROTECTED] > http://www.norsat.com > > Visit us at Booth 2G2-09 at CommunicAsia 2002 in Singapore June 18-21. > > > -----Original Message----- > > From: Dennis Saputelli [mailto:[EMAIL PROTECTED]] > > Sent: Wednesday, May 15, 2002 1:34 PM > > To: Protel EDA Forum > > Subject: Re: [PEDA] silver thru hole > > > > > > just got a paper glossy brochure from a (volume) bd shop in korea > > > > they are promoting something called 'silver through hole' > > > > to quote (sic) > > " > > We recommend Silver Through Hole PCBs for the cost savings and serve > > customers with design change. > > -Cost reduction by 20-30% compared with FR-4 double sided PTH > > -Shorter delivery time > > -Stable quality specially in bow and twist > > " > > > > anybody hear of Silver Through Hole or know what it is? > > is it done onshore state side? > > > > i have heard that the biggest bottleneck is plating time, maybe this > > addresses that somehow > > > > BTW, they also claim multilayer capacity of 20Km2/ month ! > > > > Dennis Saputelli -- ___________________________________________________________________________ www.integratedcontrolsinc.com Integrated Controls, Inc. tel: 415-647-0480 2851 21st Street fax: 415-647-3003 San Francisco, CA 94110 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * To post a message: mailto:[EMAIL PROTECTED] * * To leave this list visit: * http://www.techservinc.com/protelusers/leave.html * * Contact the list manager: * mailto:[EMAIL PROTECTED] * * Forum Guidelines Rules: * http://www.techservinc.com/protelusers/forumrules.html * * Browse or Search previous postings: * http://www.mail-archive.com/[email protected] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
