Active solid-state devices (e.g. – transistors – solid-state diode – Responsive to non-electrical signal – Electromagnetic or particle radiation
Reexamination Certificate
2008-04-15
2008-04-15
Smith, Zandra V. (Department: 2822)
Active solid-state devices (e.g., transistors, solid-state diode
Responsive to non-electrical signal
Electromagnetic or particle radiation
C257S292000, C257S222000
Reexamination Certificate
active
11361417
ABSTRACT:
A CMOS image sensor (CIS) device includes an array of pixels, each pixel including a sensing element (e.g., a photodiode) and access circuitry. To facilitate the passage of light to the photodiode, each pixel includes a via wave guide (VWG) defined in the metallization layer formed over the pixel's photodiode. The VWG includes an upper light concentrator having a curved (e.g., parabolic) surface extending from a relatively wide upper opening to a relatively small lower opening. The VWG also includes a lower section extending between the lower opening of the light concentrator and the associated photodiode. A mirror coating is optionally formed on the surface of the VWG. An optional light-guiding material and/or color filter materials are disposed inside the VWG. An optional microlens is formed over the VWG.
REFERENCES:
patent: 7060961 (2006-06-01), Dobashi et al.
patent: 7135666 (2006-11-01), Dobashi
patent: 7193289 (2007-03-01), Adkisson et al.
patent: 2004/0004668 (2004-01-01), Namazue et al.
patent: 2005/0236553 (2005-10-01), Noto et al.
patent: 2005/0253045 (2005-11-01), Oda
patent: 2005/0274871 (2005-12-01), Li et al.
patent: 2006/0054946 (2006-03-01), Baek et al.
patent: 2006/0081848 (2006-04-01), Niisoe et al.
patent: 2006/0113622 (2006-06-01), Adkisson et al.
patent: 2006/0115230 (2006-06-01), Komoguchi et al.
patent: 2006/0138495 (2006-06-01), Li et al.
Amihood Doron
Cohen David
Fenigstein Amos
Reznik Hai
Bever Patrick T.
Bever Hoffman & Harms LLP
Patton Paul E
Smith Zandra V.
Tower Semiconductor Ltd.
LandOfFree
Via wave guide with curved light concentrator for image... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Via wave guide with curved light concentrator for image..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Via wave guide with curved light concentrator for image... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3951112