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{{stub}} '''Decapping''' (decapsulation) or delidding of an integrated circuit is the process of removing the protective cover of a microchip so that the contained die is revealed for visual inspection of the micro circuitry imprinted on the die. This process is sometimes necessary in emulation projects to copy information from [[Wikipedia:Digital_rights_management|DRM-protected]] ROM chips. Particularly [[MAME]] and other [[Arcade emulators|arcade emulators]] benefit from decapping projects.
* ''Other groups that do a lot of dumping of arcade ROMs (but no decapping?) are the very active group [http://arcade.vastheman.com/dunion/ The Dumping Union]. They don't seem have a blog, but all news are posted on [http://mameworld.info/ MAMEWorld] (look for DU in the title). They accepts donations from [http://www.mameworld.info/ubbthreads/showthreaded.php?Number=311481 PayPal]. Another one is [https://team-europe.blogspot.com/ Team Europe]''' - Active group. Accepts , who also accepts donations from PayPal. , see info here on [https://www.reddit.com/r/emulation/comments/9txdsz/mame_team_europe_would_like_help_funding_some/ See info here on how to donate].
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Decapping is usually carried out by chemical etching of the covering, laser cutting, or mechanical removal of the cover using a milling machine. The process can be either destructive or non-destructive of the internal die. With care, it's possible to decap a device and still leave it functional.
==Decapping Groups==
Decapping Groups often rely on [[Support emulation projects|donations ]] to acquire hardware (ie arcade boards). * '''The Dumping Union''' - Very active group. Doesn't seem have a blog but all news are posted on [httphttps://mameworldcaps0ff.infoblogspot.com/ MAMEWorldCAPS0ff] (look for DU in is the probably the title)biggest decapping group. Accepts donations from They have [httphttps://www.mameworldpatreon.infocom/ubbthreads/showthreaded.phpuser?Numberu=311481 PayPal4805718 a Patreon]where you can donate to their decapping efforts.
==External Links==* '''[https://caps0ff.blogspotarstechnica.com/ CAPS0ff]''' gaming/2017/07/mame-devs-are-cracking-open-arcade-chips-to-get-around- Not very active lately. [httpsdrm/ Ars Technica:MAME devs are cracking open arcade chips to get around DRM] (7/25/www.patreon.com/user?u=4805718 Has a Patreon].2017)
