Variable capacitance capacitor

H - Electricity – 01 – L

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H01L 29/93 (2006.01)

Patent

CA 2409683

The invention concerns a variable capacitance capacitor comprising a periodic structure of raised zones (5) separated by recesses (6) formed in a type N semiconductor substrate (1). The walls of the raised zones and the base of the recesses are coated with a conductive layer (9, 10). The substrate is connected to a first terminal (A) of the capacitor and the conductive layer to a second terminal (B) of the capacitor. At least the base of the recesses or the side of the raised zones comprises type P regions (8), the pitch of the raised parts being selected so that the space charging zones linked to the type P regions are joined when the voltage difference between said terminals exceeds a predetermined threshold. The zones not comprising type P regions are coated with an insulant (7) and a highly doped N region (10) is formed beneath the insulant.

L'invention concerne un condensateur à capacité variable comprenant une structure périodique de zones en relief (5) séparées par des évidements (6) formés dans un substrat semiconducteur (1) de type N. Les parois des zones en relief et le fond des évidements sont revêtus d'une couche conductrice (9, 10). Le substrat est relié à une première borne (A) du condensateur et la couche conductrice à une deuxième borne (B) du condensateur. Au moins le fond des évidements ou le côté des zones en relief comporte des régions (8) de type P, le pas des parties en relief étant choisi pour que les zones de charge d'espace liées aux régions de type P se rejoignent quand la différence de tension entre lesdites bornes dépasse un seuil déterminé. Les zones ne comportant pas les régions de type P sont revêtues d'un isolant (7) et une région (11) fortement dopée de type N est formée sous l'isolant.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Variable capacitance capacitor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Variable capacitance capacitor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable capacitance capacitor will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-2024747

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.