Silicon Waveguide Integrated with Germanium Photodetector ...
Quantum Tunneling Photodetector Arrays
20
Quantum tunneling photo-detector array revolutionary photo sensing technology Marek T. Michalewicz, PhD December 2010
-
Upload
marek-michalewicz -
Category
Documents
-
view
1.339 -
download
8
description
Technology for new generation of image sensors based on quantum tunneling
Transcript of Quantum Tunneling Photodetector Arrays
Quantum tunneling photo-detector array
revolutionary photo sensing technology
Marek T. Michalewicz, PhDDecember 2010
Current Image Sensing Technology:CCD and CMOS ~ 30 Mega Pix (best of breed)
New Image Sensing Technology:Quantum tunneling photodetector arrays (QIST*)
~ 300 TERA Pix at 12” wafer level
*Quantum Image Sensing Technology
10,000 X better
Are CCD and CMOS devices
the last word in Image Sensing?
Disrupting the current market ...
Status Quo
Existing CMOS and CCDs are reaching their technical limitations based on current physics - there are problems with heat, leakage and diffraction, complex manufacturing, limits of minaturisation of pixels, etc
New Image Sensor Opportunity
Quantum tunneling photodetector array technology offers possibility to create image sensors; with none of the above limitations, with up to 100 TERA Pixels per individual image sensor, extremely fast, operating under very low power, from UV to visible to IR spectrum, and resolving colour spectrum.
Creating vast new opportunities
0
2.3
4.5
6.8
9.0
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
Pix
el S
ize
(Mic
rons
per
Sid
e)
CCDCMOS
Pixel size is near the limit
Hausken, T. 2009. Image Sensor Market
Pixel size of QIST = 1/50 microns per side
Quantum Tunneling Photodetector Arrays can offer
2,500 X greater pixel density than CCD and CMOS Image Sensors
offering up to
100 TERA Pixels per individual image sensor
Breaking the limits of old technology
• Much faster response time even in 1,000s of frames per second
• Easier fine color gradation such as 16-bit per component
colour, or multiple colour RGBYCMK sensors
• Easy adjustment of spectrum coverage from infrared to X-ray
Quantum Tunneling Photodetector Arrays offer
Great new advantages
Quantum Tunneling Photodetector Arrays
will be particularly useful in:
• affordable super hi-res earth, marine and space surveillance
• new generation cameras and vision equipment
• ultra compact solutions for eye replacement in the visually
impaired
• wide use in both civilian and classified devices
Wide applications
Current CCD and CMOS Image Sensor Market
$US 8.5 billion
is going to grow to
$US 16 billion in 2015
Huge accessible market
CMOS Image sensors market
Application OutlookCameraphones Still the grand prize.
Digital cameras Saturating but still important
Camcorders Some new opportunities in an old application
Webcams Taking off
Stand-alone videophones Always the application of the future
Toys, game consoles Taking off
Optical mice Maturing, but still some new ideas
Scanning appliances A mature and closed community
General outlook: Consumer apps
Hausken, T. 2009. Image Sensor Market
Application OutlookSecurity cameras Strong growth
Machine vision A fragmented and specialized market
Automotive Strong opportunities but a long development cycle
Barcode scanners A mature niche market
Single-use endoscopy Enabling, but a niche
Digital radiography Good growth for exotic technologies
Scientific Very customized R&D applications
General outlook: Speciality
Hausken, T. 2009. Image Sensor Market
0
375
750
1,125
1,500
2001 2002 2003 2004 2005 2006 2007 2008 2009
New
Han
dset
s (M
illio
n)
HandsetsPrimary camerasSecondary cameras
The killer app: Cameraphones
Hausken, T. 2009. Image Sensor Market
New Image Sensing Technology:
Quantum tunneling photodetector arrays
(QIST*)
*Quantum Image Sensing Technology
Tunneling Photosensitive Cross-Grid Array
two cross-grid nanowire arrays
Tunneling Photosensitive Cross-Grid Array
top array fabricated on transparent substrate
308: SOFT MATTER SPACERsoft-matter spacer plays critical role in resonant tunneling assisted tunneling
Tunneling Photosensitive Cross-Grid Array
top curve:100% increase of tunneling current observed upon incidence of light
1. Sharing the vision of quantum tunneling photo-detectors revolution
2. Invitation to engage in joint research or development
3. Seeking R&D, JV, licensing or investments partners
Motivation
Well protected IP
Quantum tunneling photodetector array is covered by patents:
• “Quantum Tunneling Photodetector array” PCT/SG
2007/000433
• patent pending USA
• patent pending Japan 2010-539391
• patent pending Europe 07852299.2
• patent pending China 200780101914.5
![Near‐Infrared and Short‐Wavelength Infrared …[31] photodetector arrays,[32] novel single-crystal-[33] and nanowire-[34]based OHP photodetectors have also been realized. Despite](https://static.fdocuments.in/doc/165x107/5aba2ee97f8b9af27d8b62aa/nearinfrared-and-shortwavelength-infrared-31-photodetector-arrays32.jpg)
