I don't think there's any spec as the minimum may vary from shop to shop. We use 0.1mm as our minumum by design. Denis Lefebvre, CID+ Sr. PCB Designer Finisar Corp (408) 542-3832 -----Original Message----- From: DesignerCouncil [mailto:[log in to unmask]] On Behalf Of Narinder Sent: Friday, March 03, 2006 6:08 AM To: [log in to unmask] Subject: [DC] Soldermask Web Is there any standard or specification or a guideline for Soldermask web between smd pad other then BGA. thanks Narinder ----- Original Message ----- From: <[log in to unmask]> To: <[log in to unmask]> Sent: Thursday, March 02, 2006 8:07 PM Subject: Re: [DC] Manufacturer for Cavity board > Carol, > There are numerous PCB Fabricators with cavity build experience. I > would recommend two, in the US try Merix, in Asia try Topsearch. I > have had good luck and relationships with both of these large scale > manufacturers. For smaller scale there are lots of houses in the > Silicon Valley still that > specialize in small quantity exotic builds. > Try Steamline Circuits in San Jose. > If you ask nice any house will likely be glad to do prototype > quantities(read this as cavity builds equal high margins for fab). > Good Luck, > FNK > > ---------------------------------------------------------------------- > ----------- > 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 temporarily stop/(restart) delivery of DesignerCouncil send: SET > DesignerCouncil NOMAIL/(MAIL) > Search previous postings at: www.ipc.org > On-Line Resources & Databases > > E-mail 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 > 847-615-7100 ext.2815 > ------------------------------------------------------------------------ --------- > ------------------------------------------------------------------------ --------- 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 temporarily stop/(restart) delivery of DesignerCouncil send: SET DesignerCouncil NOMAIL/(MAIL) Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail 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 847-615-7100 ext.2815 ------------------------------------------------------------------------ --------- --------------------------------------------------------------------------------- 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 temporarily stop/(restart) delivery of DesignerCouncil send: SET DesignerCouncil NOMAIL/(MAIL) Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail 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 847-615-7100 ext.2815 ---------------------------------------------------------------------------------