Happy Friday, Inge. If you have access to IPC-2225, IPC-6015, IPC-MC-790, and DD-135 there is a wealth of information on MCM package design, assembly, and qualification. -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Hernefjord Ingemar Sent: Friday, May 08, 2009 6:56 AM To: [log in to unmask] Subject: [TN] Design considerations for MCM packages Hi TechNetters and Dewey, I have to write, rather quickly, kind of design rules or a little handbook. I will use own material as well as others. Question: do you miss something in the below list (borrowed from Garrou&Turlic): 7.1 INTRODUCTION 7.2 MECHANICAL DESIGN CONSIDERATIONS MCM PACKAGES 7.2.1 Package size 7.2.2 Package I/O 7.2.3 Expansion matching 7.2.4 Compliant Leads 7.2.5 Vibration and Shock Considerations 7.3 ELECTRICAL DESIGN CONSIDERATIONS MCM PACKAGES 7.3.1 Package Leads Characteristics 7.3.2 Package Body Electrical Characteristics 7.4 THERMAL DESIGN CONSIDERATIONS MCM PACKAGES 7.4.1 Temperature Extreme Considerations 7.4.2 Temperature Rise Inside MCM Packages 7.5 ENVIRONMENTAL DESIGN CONSIDERATIONS MCM PACKAGES 7.5.1 Thermal Cycling 7.5.2 Hermeticity Considerations 7.5.3 Pressure Cycling 7.5.4 Hermetic-Equivalent Packaging, Moisture and Corrosion Resistance, Reliability without Hermeticity. 7.6 EXAMPLES OF MCM PACKAGE DESIGN APPROACHES 7.6.1 Premolded Plastic MCM Packages 7.6.2 Postmolded Plastic MCM Packages 7.6.3 Encapsulated Chip-on-Board MCM Packages 7.6.4 Metal Hermetic MCM Packages 7.6.5 Ceramic Hermetic MCM Packages 7.7 Cost Considerations for MCM Packages If there is something else to add, I would appreciate that very much. Thanks in advance Inge --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 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 or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/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 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 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 or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/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 -----------------------------------------------------