Well, we primarily build military electronics with LCCCs, thus the need for a restrained board. (We're using silicon carbide/aluminum composite cores.) I've been tasked to look at this design/technology and come up with alternatives. I'm interested in alternate restraining core material, board material, leaded SMT components, near-hermetic plastic components, etc., etc. What are you military guys/gals doing these days? Jim Marsico Senior Engineer Production Engineering EDO Electronics Systems Group [log in to unmask] <mailto:[log in to unmask]> 631-595-5879 -----Original Message----- From: Earl Moon [SMTP:[log in to unmask]] Sent: Tuesday, October 02, 2001 4:19 AM To: [log in to unmask]; Jim Marsico Subject: Re: Cu-In-Cu boards I don't do well at 0200. Maybe you meant thermal-mechamical stability. If so, CIC obviously applies as does Kevlar and Carbon fiber materials. Diamond types are best but anyone up for that? I quit, thankfully to us all. MoonMan --------------------------------------------------------------------------------- Technet 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 Technet To temporarily halt delivery of Technet send the following message: SET Technet 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 ---------------------------------------------------------------------------------