Yep, was going to suggest the same thing: http://www.buehler-met.de/fileadmin/user_upload/pdf/brochures/Petrothin_Deca psulation.pdf Steve -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Bruce Tostevin Sent: Friday, August 12, 2011 9:30 AM To: [log in to unmask] Subject: Re: [TN] FW: Metal can, transistor, delidding tool Adding on to Steve's suggestions about drill presses and lathes, another option is to grind the package paper thin on a rotating diamond disc similar to those used for cross-sectioning. We do that here on our Buehler and routinely open up clock oscillators, crystals, transistors, etc., and every variety of plastic packages like relays and switches. Use just a little water to keep the package cool enough to hand hold it while you're grinding and turn off the water before you actually get all the way through the lid. Very carefully, using a brand new X-Acto blade, push the tip through the thinned metal, run it part way around the lid and usually the lid will lift right off. Done carefully you will introduce an absolute minimum of particulate matter inside the device. Inexpensive diamond wheels are available on the internet. Bruce -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Steven Creswick Sent: Friday, August 12, 2011 9:12 AM To: [log in to unmask] Subject: Re: [TN] FW: Metal can, transistor, delidding tool Victor, I did a quick search and could not find the manual tool which I was looking for. I can clearly visualize it in my mind, but cannot remember the manufacturer's name. Basically, it consisted of two sealed bearings, having the spin axis vertical. The outer races of the bearings were approximately 0.15" apart [don't remember if the spacing was adjustable or not]. Coming in from the 'open' side of the bearing pair was a cutting disk, much like the cutting wheel of a pipe cutter, etc. [Actually, the cutting disk was flat on one side and came in at a very small angle on the other] The cutting disk was attached to a threaded mechanism which allowed it to be brought closer to, or farther away from the cylindrical devices being opened. To operate, one would back off the cutting disk, insert the TO package [leads-up], such that the sealing flange rested on top of the outer races of the bearings. The cutting disk would then be brought in against the package lid, just above the sealing flange [actually, just below the flange as it was oriented in the machine], against the header platform. When we opened TO's, it was not for the purpose of re-sealing. Midas made/s can openers for bathtub packages and TO's, but they are doing so with the intent to re-seal. Possibly they have a clue about who makes the manuals for DPA.... You may also contact the author of various articles on delidding of counterfeit devices for suggestions. If you are not the least bit concerned about generating particulate matter, you can chuck the cover in a drill press or lathe chuck and go at it with a dremel tool and cutoff wheel. Ditto for small lathe and cutoff tool, or file, etc. If you find out who made/makes the old manual tools let me know. One could make one, but the upfront engineering charges would likely outweigh the purchase cost - if you could find who makes them.... http://www.process-sciences.com/pdfs/PSI_Counterfeits_Screening.pdf http://www.midastechnology.com/Products_Midas_Technology.html Steve Creswick Sr Associate - Balanced Enterprise Solutions http://www.linkedin.com/in/stevencreswick 616 834 1883 -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Victor Hernandez Sent: Friday, August 12, 2011 7:51 AM To: [log in to unmask] Subject: [TN] FW: Metal can, transistor, delidding tool Folks, I have not received the correct response to my inquiry. Therefore, I will post again. A "Can Opener Tool" for de-lidding metal transistor can, as done in past years when metal cans were the norm. Victor, -----Original Message----- From: Stadem, Richard D. [mailto:[log in to unmask]] Sent: Wednesday, August 03, 2011 10:06 AM To: TechNet E-Mail Forum; Hernandez, Victor G Cc: [log in to unmask]; [log in to unmask]; [log in to unmask]; [log in to unmask]; [log in to unmask] Subject: RE: Metal can, transistor, delidding tool This sounds like a question for some of the failure analysis experts who may have a good understanding of de-packaging tools. I have copied them specifically to get their inputs. Can you folks in the CC field provide any input on sources for de-packaging tools that Victor is looking for? Thanks Dean Stadem -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Victor Hernandez Sent: Wednesday, August 03, 2011 8:43 AM To: [log in to unmask] Subject: [TN] Metal can, transistor, delidding tool Fellow TechNetters: My colleague and I were recalling, flash back, tools for opening metal can components, transistors, etc. We currently have a need for one of those specialized tools from years gone by. A tool for removing the lid on EPROMS was also very handy, nut cracker. Can someone provide a make and model to purchase an electric cap opener for delidding metal package transistors (like T-03 packages)? I used to have a SigneMatic cap opener, but they appear to be no longer in business. The unit had an adjustable/slide roller that feed the metal can into a rotating beveled blade/cutting edge. Appreciate any help on this. Victor, ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. 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