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ReadOnly MESSfan Reged: 10/24/10 Posts: 106 Loc: Paris La Défense Send PM Re: An interesting prototype has turned up 12/20/12 12:39 PM Reply > > > Mask ROMs do go bad - a non-trivial percentage of bad dumps in MAME are masks. > > > > They can go bad (under extreme circumstances), but something tells me that an even > > less trivial percentage of that non trivial percentage are caused by pins issues > > No, chips actually do go bad even if they don't rely on trapped charge. Oxide layers > in any kind of MOS will eventually degrade, doped silicon isn't perfectly stable so > semiconductor junction transistors will go bad one day, Schottky barriers will > eventually contaminate. Chips built on larger processes and with thicker oxide layers > will last longer, but none of them will last forever. And why do you start your post with "No" only to repeat what I said?

Entire thread Subject Posted by Posted on An interesting prototype has turned up Brian Deuel 12/19/12 09:13 PM Re: An interesting prototype has turned up colour_thief  12/21/12 09:17 PM Re: An interesting prototype has turned up Brian Deuel  12/20/12 07:32 PM Re: An interesting prototype has turned up astrp3  12/21/12 08:10 PM Re: An interesting prototype has turned up R. Belmont  12/24/12 01:39 PM Re: An interesting prototype has turned up Brian Deuel  12/30/12 10:08 PM Re: An interesting prototype has turned up *edit* gregf  12/31/12 02:05 PM Re: An interesting prototype has turned up Stiletto  12/21/12 08:45 PM Re: An interesting prototype has turned up Smitdogg  12/19/12 09:29 PM Re: An interesting prototype has turned up Anonymous  12/20/12 11:11 AM Re: An interesting prototype has turned up R. Belmont  12/20/12 12:10 PM Re: An interesting prototype has turned up Anonymous  12/21/12 05:45 PM Re: An interesting prototype has turned up ReadOnly  12/20/12 12:25 PM Re: An interesting prototype has turned up Vas Crabb  12/20/12 12:30 PM Re: An interesting prototype has turned up ReadOnly  12/20/12 12:39 PM Re: An interesting prototype has turned up etabeta  12/20/12 01:16 PM Re: An interesting prototype has turned up ReadOnly  12/20/12 01:24 PM Re: An interesting prototype has turned up Vas Crabb  12/20/12 10:51 PM Re: An interesting prototype has turned up ReadOnly  12/21/12 07:15 AM Re: An interesting prototype has turned up Vas Crabb  12/21/12 08:45 AM Re: An interesting prototype has turned up ReadOnly  12/21/12 09:06 AM Re: An interesting prototype has turned up Vas Crabb  12/21/12 08:54 PM Re: An interesting prototype has turned up ReadOnly  12/23/12 07:53 AM Re: An interesting prototype has turned up Vas Crabb  12/23/12 06:35 PM Re: An interesting prototype has turned up ReadOnly  12/24/12 12:32 PM Re: An interesting prototype has turned up Vas Crabb  12/25/12 07:59 AM Re: An interesting prototype has turned up R. Belmont  12/21/12 12:10 PM Re: An interesting prototype has turned up BadMouth  12/21/12 11:30 AM Re: An interesting prototype has turned up Olivier Galibert  12/20/12 02:54 PM Re: An interesting prototype has turned up ReadOnly  12/20/12 04:08 PM Re: An interesting prototype has turned up Olivier Galibert  12/20/12 05:46 PM Re: An interesting prototype has turned up ReadOnly  12/20/12 05:55 PM Re: An interesting prototype has turned up ReadOnly  12/19/12 09:42 PM Re: An interesting prototype has turned up Smitdogg  12/19/12 09:48 PM

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