What type of rigid carrier board do you use? Is it just plain FR4 or Delmat? I would like to know if you have any experience with any other type of carrier that is as rigid as FR4, but is much less expensive and can withstand the temperatures of a reflow oven. The reason for this is that we would like to ship flex in a panelized-form with that inexpensive, rigid carrier to our customer. When our customer completes their assembly, they can just discard the carrier. To 3M? DuPont? Rogers? Any comments? Any help will be greatly appreciated. Nelson P. Calimquim [log in to unmask] ---------- From: [log in to unmask][SMTP:[log in to unmask]] on behalf of [log in to unmask] Sent: Tuesday, March 11, 1997 6:50 AM To: [log in to unmask] Cc: [log in to unmask] Subject: Re: SMT Assembly and Flex Circuits Mr.Prasad: We are doing volume assembly of electronics on flexible circuits using two conventional SMT methods: (1)apply double side adhesive to the back of flex PWB,then put on rigid carrier board according to tooling holes easily for sceening paste,reflowing and assembly by use of SMT machine. (2)put the flex PWB into two rigid thin stainless steel sheets according to tooling holes,just like sandwich. Open the windows in the steel sheets so as to expose the SMT area of flex PWB for assembly. So it is easy to SMT assembly. As a matter of experience,(1) method is better than (2). For only several SMT components on flex PWB,more cheape methods is manual operating,no need use Auto SMT machines,especially in Asian. Our company is the manufacturer of flex PWB,rigid PWB and assembly. Contact: AKM Electronics Industrial LTD. YiLi Industrial Building,HuangGe,PanYu city, GuangDong Province,PR China 511455 Tel:(86)84972446 Fax:(86)84972445 [log in to unmask] Please note: it is 1 (one),not L in "PUBLIC1" Regards - Chai Zhiqiang **************************************************************** *********** * TechNet mail list is provided as a service by IPC using SmartList v3.05 * **************************************************************** *********** * To subscribe/unsubscribe send a message <to: [log in to unmask]> * * with <subject: subscribe/unsubscribe> and no text in the body. * **************************************************************** *********** * If you are having a problem with the IPC TechNet forum please contact * * Dmitriy Sklyar at 847-509-9700 ext. 311 or email at [log in to unmask] * **************************************************************** *********** *************************************************************************** * TechNet mail list is provided as a service by IPC using SmartList v3.05 * *************************************************************************** * To subscribe/unsubscribe send a message <to: [log in to unmask]> * * with <subject: subscribe/unsubscribe> and no text in the body. * *************************************************************************** * If you are having a problem with the IPC TechNet forum please contact * * Dmitriy Sklyar at 847-509-9700 ext. 311 or email at [log in to unmask] * ***************************************************************************