tag:blogger.com,1999:blog-19092890.post5269643313462312791..comments2024-03-28T17:41:43.970+02:00Comments on Image Sensors World: Omnivision Proposes Contact Dummy PixelVladimir Koifmanhttp://www.blogger.com/profile/01800020176563544699noreply@blogger.comBlogger8125tag:blogger.com,1999:blog-19092890.post-8308152447722446502011-04-02T02:40:10.779+03:002011-04-02T02:40:10.779+03:00I think this application interferes with a few of ...I think this application interferes with a few of the patent apps Omnivision just bought.Eric R Fossumhttps://www.blogger.com/profile/09740612324630105312noreply@blogger.comtag:blogger.com,1999:blog-19092890.post-3729227638516534182011-03-31T22:42:41.510+02:002011-03-31T22:42:41.510+02:00This is exactly the internal structure of BCCD. Th...This is exactly the internal structure of BCCD. The N collector can be used for reseting the PD and also as an antiblooming vertical channel.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-19092890.post-40742140168802865232011-03-31T22:19:06.058+02:002011-03-31T22:19:06.058+02:00The n collector layer (310) should be eliminated f...The n collector layer (310) should be eliminated for BSI and so the dummy pixels will not work. I still think this scheme could have some benefit for FSI.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-19092890.post-83721057921029589702011-03-31T17:17:26.772+02:002011-03-31T17:17:26.772+02:00A so-called, dummy pixel has already been done by ...A so-called, dummy pixel has already been done by others.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-19092890.post-86286519496755141582011-03-30T21:17:45.665+02:002011-03-30T21:17:45.665+02:00@ "The description in the blog appears incorr...@ "<i>The description in the blog appears incorrect -- the purpose of this is for FSI with a buried n-well.</i>"<br /><br />The application's text specifically talks about BSI problem it goes to solve. For example:<br /><br />"FIG. 3 illustrates how a contact dummy pixel can be applied to a vertical overflow drain (VOD) structure of a BSI CIS pixel architecture, in accordance with an embodiment of the invention."<br /><br />I'd guess the figures show BSI structure before the substrate is removed.Vladimir Koifmanhttps://www.blogger.com/profile/01800020176563544699noreply@blogger.comtag:blogger.com,1999:blog-19092890.post-37482377144060033842011-03-30T20:29:29.935+02:002011-03-30T20:29:29.935+02:00this is so obvious i don't even think i ever w...this is so obvious i don't even think i ever wrote it down on the several occasions i considered it as a suitable solutionAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-19092890.post-60964447456866165542011-03-30T20:17:10.427+02:002011-03-30T20:17:10.427+02:00The description in the blog appears incorrect -- t...The description in the blog appears incorrect -- the purpose of this is for FSI with a buried n-well. The substrate 305 and layers 307 & 310 would block BS illumination.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-19092890.post-41165897038130529372011-03-30T18:46:46.415+02:002011-03-30T18:46:46.415+02:00If they chose to implement this, anyone with acces...If they chose to implement this, anyone with access to enough die should be able to figure out which and how many pixels are dummys.Anonymousnoreply@blogger.com