tag:blogger.com,1999:blog-19092890.post4864085925354268575..comments2024-03-28T17:41:43.970+02:00Comments on Image Sensors World: Fraunhofer Institute Developed Wide Temperature Range SensorVladimir Koifmanhttp://www.blogger.com/profile/01800020176563544699noreply@blogger.comBlogger10125tag:blogger.com,1999:blog-19092890.post-27067129394405483122010-09-24T14:35:59.710+02:002010-09-24T14:35:59.710+02:00@ ambient or junction
I'd say ambient. Proba...@ <i>ambient or junction</i><br /><br />I'd say ambient. Probably the numbers aren't precise anyway since this is a publicity announcement, so maybe the junction temperature at the maximum ambient is a little or even a lot higher.CDMhttps://www.blogger.com/profile/16405088162729045793noreply@blogger.comtag:blogger.com,1999:blog-19092890.post-22938261191739979292010-09-23T20:33:26.669+02:002010-09-23T20:33:26.669+02:00The p+ is the conventional S/D implant, no pinning...The p+ is the conventional S/D implant, no pinning...Matteo Perenzonihttps://www.blogger.com/profile/06749026636944967137noreply@blogger.comtag:blogger.com,1999:blog-19092890.post-50874034142783826272010-09-23T17:10:28.871+02:002010-09-23T17:10:28.871+02:00From the ESSCIRC paper:
* It's a classical 3T ...From the ESSCIRC paper:<br />* It's a classical 3T pixel with a "shutter" transistor between the PD and the SF, and an antiblooming transistor. The device is described in a JSSCC paper from July 2008 (Durini et al.). <br />* The n-well is not fully depleted<br />* Dark current: "The standard n-well PD delivers 750fA at room temperature (25°C ) in contrast to the 100fA delivered by the BPD of the same area, while delivering 400pA at 110°C in contrast to the 76pA delivered by the BPD."Davidhttps://www.blogger.com/profile/05373349426893947212noreply@blogger.comtag:blogger.com,1999:blog-19092890.post-66190052404587621542010-09-23T15:21:17.026+02:002010-09-23T15:21:17.026+02:00I think (!!!) it is a classical 3T pixel of which ...I think (!!!) it is a classical 3T pixel of which part of the photodiode has a p+ pinning layer. In that case it is not a 4T pixel, but still a classical 3T with a lower dark current. I have no idea whether the structure underneath the p+ is depleted or not. For dark current reasons full depletion is not necessary. I have not seen any pixel structure/lay-out/architecture, so what is mentioned here is a guess.Albert Theuwissennoreply@blogger.comtag:blogger.com,1999:blog-19092890.post-26042915296004558382010-09-23T14:33:18.058+02:002010-09-23T14:33:18.058+02:00"The low dark current by removing the surface..."The low dark current by removing the surface-related issues with a grounded p-diffusion" So is this a pinned photodiode, which is fully depleted and allows for real CDS? Or do they have a non-fully depleted photodiode? Both is nothing special and/or new, right?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-19092890.post-74013330382424672212010-09-23T07:01:39.308+02:002010-09-23T07:01:39.308+02:00"temperatures ranging from -40 to +115 degree..."temperatures ranging from -40 to +115 degrees Celsius" is this ambient or junction temperature ??Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-19092890.post-44356733993450199682010-09-22T21:17:21.861+02:002010-09-22T21:17:21.861+02:00what kind of applications in machine vision needs ...what kind of applications in machine vision needs a so large pixel size and so low resolution ??Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-19092890.post-42645250655857666942010-09-22T20:45:10.483+02:002010-09-22T20:45:10.483+02:00I saw the presentation at ESSCIRC some days ago (i...I saw the presentation at ESSCIRC some days ago (it should be the same). The principle is, I would say, trivial: the enhanced FWC is achieved by a large (>photodiode!) capacitor on the SF node. The low dark current by removing the surface-related issues with a grounded p-diffusion on top, bringing to low resp at lower wavelenghts.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-19092890.post-53304426625051512102010-09-22T17:10:16.226+02:002010-09-22T17:10:16.226+02:00too many fake annoncement today, what a pitty !too many fake annoncement today, what a pitty !Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-19092890.post-64884648920063773382010-09-22T11:14:25.268+02:002010-09-22T11:14:25.268+02:00Two things are mentioned in the press release :
- ...Two things are mentioned in the press release :<br />- the new imager has a low dark current, how low is a low dark current ?<br />- a CCD fails at temperatures higher than 60 deg.C. This ABSOLUTELY not correct. I operated CCDs up to 180 deg.C during my cosmic-ray radiation experiments without any problem.Albert Theuwissennoreply@blogger.com