Glenn, There is a new test method J-STD-035 on acoustic microscopy. This should be published very soon (it is in typesetting). This Joint IPC/JEDEC standard will replace the old 2.6.22 TM. Jack McCullen [log in to unmask] -----Original Message----- From: Norman Robinson [mailto:[log in to unmask]] Sent: Monday, May 03, 1999 7:52 AM To: [log in to unmask]; [log in to unmask] Subject: [TN] JEDEC moisture sensitivity spec J-STD-020A Hello TechNetistes & other Earthlings. I'll leave it to others with a deeper knowledge than I of CSAM / SAT test methodology to respond directly to Glenn's query. However, I would just like to highlight that the referenced document J-STD-020A is a quite extensive revision of the J-STD-020 released back in October 1996. One significant change is that the preferred method of solder reflow is now 100% Convection reflow, rather than VPR (formerly preferred) or Infrared (IR)/Convection. Another is the Classifiaction/Reclassification of Surface Mount packages by package type & size, in terms of Package Reflow conditions. The update was only posted on JEDEC website this April, so be warned if you have been using this standard for some time & were not aware of the update! It's definitely worth a close read. Keep up the heat . . . Norm. -- Thx & best regards . . . ------------------------------------------------------------------------ Norman S. Robinson Tel. No.: (44) 1355 355349 Snr. Assy. Engr. Fax. No.: (44) 13552 65201 TSG BE/OS PE Email: [log in to unmask] MOTOROLA EKB, SCOTLAND, U.K. ------------------------------------------------------------------------ glenn pelkey wrote: > , > glenn pelkey <[log in to unmask]>To: [log in to unmask] > Apparently-To: "Norman_Robinson-TENG52@email" <[log in to unmask]> > Mime-Version: 1.0 > Content-type: text/plain > Message-ID: <[log in to unmask]> > > Hello friends, > > I'm reading J-Std-20 on moisture sensitivity of plastic packages that I > got off the Jedec web site. In it is a reference to IPC-TM-650, Method > 2.6.22, "Acoustic Microscopy." However, I can't find that particular > test method in our manual or on the IPC web site. > > Does anyone know the status of that test method? And, as a follow-up, > does anyone know of other standards (military, IEC, etc) that address > Acoustic Microscopy (in some situations, known as "Sonoscan" or "CSAM")? > > Thanks for your help. > > Glenn Pelkey > Maxtek Components Corp. > [log in to unmask] > [log in to unmask] > Get Your Private, Free Email at http://www.hotmail.com > > ################################################################ > TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c > ################################################################ > To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: > To subscribe: SUBSCRIBE TechNet <your full name> > To unsubscribe: SIGNOFF TechNet > ################################################################ > Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section for additional information. > For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 > ################################################################ ################################################################ TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TechNet <your full name> To unsubscribe: SIGNOFF TechNet ################################################################ Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################ ################################################################ TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TechNet <your full name> To unsubscribe: SIGNOFF TechNet ################################################################ Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################