IPC/JEDEC J STD 020 Revision E has just been released and is available now from Document Center Inc. Titled “Moisture/Reflow Sensitivity Classification for Nonhermetic Surface Mount Devices,” the document is a joint publication of both IPC and JEDEC. The new J STD 020E replaces the J STD 020D.1 Edition which is now obsolete.
The J STD 020 is used for nonhermetic surface mount devices (SMDs). The standard provides the methodology to identify the classification level for SMDs that are sensitive to moisture-induced stress. This allows for proper protocols for packaging, storing, and handling to prevent damage during assembly solder reflow attachment and/or repair operations.
What’s really at issue here? Since solder reflow is a process of attaching electrical components to boards prior to the application of high heat, moisture within a package can lead to cracks and “popcorning” during the process. The classification procedure in this standard informs users of the level of moisture sensitivity of the SMDs.
If you use this standard, you’ll want to know that the changes are from the old Revision D to this new Revision E. Luckily, there’s an Annex B that provides you with a table of the major changes. This table reviews clause by clause the areas where there are changes. A description of the change is also included. Of course, this is not a redline edition, so you’ll have to review the old copy against the new for a complete understanding of the implications of the new update.
When it comes to ordering the standard, you have two options from Document Center Inc. You can purchase the IPC edition of J STD 020E, which is available in paper format, single user CD Rom, Kit, and site licensing options. Or you can purchase the JEDEC edition which we have available as JEDEC J STD 020E. The JEDEC edition has more flexibility, being available in paper, single user pdf and multi-user licensing options.
Order online at the Document Center webstore, www.document-center.com, or contact our staff. You can reach them by phone (650-591-7600), fax (650-591-7617) or email (info@document-center.com). We’ll work with you to determine the option that is right for you. So make Document Center your Standards Experts!
