tag:blogger.com,1999:blog-401164737462963207.post6668703859907968873..comments2024-03-28T00:14:10.834-07:00Comments on Ben Krasnow: Decapping ICs (removing epoxy packaging from chips to expose the dies)Ben Krasnowhttp://www.blogger.com/profile/04234629396863486242noreply@blogger.comBlogger11125tag:blogger.com,1999:blog-401164737462963207.post-84845944438150970352015-05-18T05:25:16.159-07:002015-05-18T05:25:16.159-07:00Hi Ben I have a question after decapping how I cou...Hi Ben I have a question after decapping how I could complete process. I mean revers engineering ?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-401164737462963207.post-59854677125937149672012-10-11T12:43:34.748-07:002012-10-11T12:43:34.748-07:00For those without access to nitric acid, I found a...For those without access to nitric acid, I found a different method of getting to the silicon inside ICs (it is a little crude though:<br />heat the IC as hot as i could with a propane torch<br />then quench into cold water, after a few tries I was able to get the plastic casing material to crack through thermal shock leaving the die exposed. It's no good if you want it to still work but if you just want to remove the top to look at the insides through a microscope/magnifying glass it's fairly effective.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-401164737462963207.post-75116640503333309232012-09-12T19:10:24.891-07:002012-09-12T19:10:24.891-07:00You could use a bond wire attached to a dip pin as...You could use a bond wire attached to a dip pin as a probe, and position it with your CNC mill.Anonymoushttps://www.blogger.com/profile/05711651430064455098noreply@blogger.comtag:blogger.com,1999:blog-401164737462963207.post-10729528552535039402012-09-04T02:51:32.506-07:002012-09-04T02:51:32.506-07:00Hello Ben,
within my PHD I wanna do some experime...Hello Ben,<br /><br />within my PHD I wanna do some experiment with FPGA. I wanna remove package but chip must be working after this procedure. I tried use HNO3. The whole chip was immersed in the acid (just test of the acid). But nothing happend. I try your procedure from the video and I will leave here some message after.<br /><br />VenaAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-401164737462963207.post-68778082560713158712012-09-03T10:21:22.814-07:002012-09-03T10:21:22.814-07:00Vena, yes the decapped chips definitely work after...Vena, yes the decapped chips definitely work after the process. I just decapped two 555 timers, and plan to inspect them with a scanning electron microscope while the chips are active.Ben Krasnowhttps://www.blogger.com/profile/04234629396863486242noreply@blogger.comtag:blogger.com,1999:blog-401164737462963207.post-42625176418658321522012-09-03T04:32:49.724-07:002012-09-03T04:32:49.724-07:00Hello,
can chips work after deccaping?
VenaHello,<br /><br />can chips work after deccaping?<br /><br />VenaAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-401164737462963207.post-85972178773186676162012-08-20T16:31:01.454-07:002012-08-20T16:31:01.454-07:00Hash, it is no doubt difficult to get chemicals as...Hash, it is no doubt difficult to get chemicals as a hobbyist. Most of the large suppliers will ship only to universities or established businesses. If you have a friend who is willing to help, that is one option. I've heard some online places will ship to individuals. Try these: http://www.chemical-supermarket.com/<br />http://www.elementalscientific.net/<br />http://www.unitednuclear.com/<br /><br />Good luck!<br />Ben Krasnowhttps://www.blogger.com/profile/04234629396863486242noreply@blogger.comtag:blogger.com,1999:blog-401164737462963207.post-32017099043464047032012-08-20T15:24:45.998-07:002012-08-20T15:24:45.998-07:00Ben,
Interesting video, I have always thought abo...Ben,<br /><br />Interesting video, I have always thought about doing this but had no idea where to source the necessary chemicals. <br /><br />How do you go about getting hobbyist quantities of things like Nitric Acid? Friend of a friend of a chemist... Or are there websites that cater to DIY chemist markets?<br /><br />-HashHashhttps://www.blogger.com/profile/18259481795809865397noreply@blogger.comtag:blogger.com,1999:blog-401164737462963207.post-38181553992561952522012-08-14T11:56:47.275-07:002012-08-14T11:56:47.275-07:00BTW You have ultimate probe - scanning electron mi...BTW You have ultimate probe - scanning electron microscope. Can Your SEM display such low as 5V potential differences?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-401164737462963207.post-16370462035995328862012-08-13T14:49:19.632-07:002012-08-13T14:49:19.632-07:00I sugest you to send a couple of working ic's ...I sugest you to send a couple of working ic's to this guy http://www.youtube.com/user/mikeselectricstuff<br />maybe he can find a way to use his thermal camera while chips are working.<br />I'm really curious to know if visualization is possible.<br />sanpedrohttps://www.blogger.com/profile/10540042539924369285noreply@blogger.comtag:blogger.com,1999:blog-401164737462963207.post-68291825216466007082012-08-13T02:41:03.394-07:002012-08-13T02:41:03.394-07:00Hi,
I wonder if this works on IC dies, that have ...Hi,<br /><br />I wonder if this works on IC dies, that have been glued to a PCB by a Blob ... Epoxy?<br /><br />I have 53% NHO3... which was kind of useless till now... maybe this is not strong enough... or, as you suggest, I have to heat it up<br /><br />Greetings<br />TOMSchwuuuuuphttps://www.blogger.com/profile/06292306632282463504noreply@blogger.com