tag:blogger.com,1999:blog-534708807576459669.post3339771703162502893..comments2024-03-10T17:45:30.851-07:00Comments on IC reverse engineering and other adventures: Understanding the Intel 4004John McMasterhttp://www.blogger.com/profile/11714069658809228929noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-534708807576459669.post-63365679875771690692015-09-06T02:21:58.583-07:002015-09-06T02:21:58.583-07:00Nice analysis work. "Depletion loads" (...Nice analysis work. "Depletion loads" (better "pullup" transistors) weren't available in the Intel process Faggin used for the 4004. I quote "pullup" because as you rightly noted, in PMOS they are pull-downs. Me? I just turn the schematics up-side-down... (:-).mcpublichttps://www.blogger.com/profile/07636514467445076016noreply@blogger.comtag:blogger.com,1999:blog-534708807576459669.post-43906572848219456152012-04-19T01:37:46.888-07:002012-04-19T01:37:46.888-07:00Wow, you know how to reverse-engineer ICs!
Here p...Wow, you know how to reverse-engineer ICs!<br /><br />Here people dig into YM2612 (SEGA Genesis/Megadrive FM synthesis audio chip):<br /><br />http://gendev.spritesmind.net/forum/viewtopic.php?t=386&postdays=0&postorder=asc&start=585<br /><br />They undressed the chip and took hi-res photo of it, but no delayering was made.<br /><br />Do you know if someone already ahve built a multilayer scan of YM2612 or is going to do so?dailyhackinghttps://www.blogger.com/profile/13864807519216895105noreply@blogger.com