1. A pixel sensor cell comprising:
a semiconductor substrate; and
a photosensitive element within the semiconductor substrate, the photosensitive element including:
a trench in the semiconductor substrate, wherein the semiconductor substrate comprises a first doped region of a first conductivity and a second doped region of the first conductivity at an upper surface of the semiconductor substrate, in which the first doped region is on an opposing side of the trench as the second doped region;
a boundary layer of the first conductivity present in the sidewalls and base of the trench; a collector region of a second conductivity present in the substrate below the first and second doped regions of the first conductivity and abutting the boundary layer of the first conductivity, wherein the boundary layer and the first and second doped regions of the first conductivity isolate the collector region of the second conductivity from the sidewalls of the trench and the upper surface of the semiconductor substrate; and
a fill material of the first conductivity present in the trench.
2. The pixel sensor of claim 1 wherein a transfer gate is present over one of the first and second doped regions of the first conductivity at the upper surface of the semiconductor substrate on one side of the opposing sides of the trench.
3. The pixel sensor of claim 2, wherein a floating diffusion of a second conductivity type is present at an end of one of the first and second doped regions of the first conductivity at the upper surface of the semiconductor substrate that is underlying the transfer gate and opposite an end of one of the first and second doped regions of the first conductivity at the upper surface of the semiconductor substrate that is abutting the boundary layer.
4. The pixel second of claim 1, wherein the first conductivity is a p-type dopant, and the second conductivity is an n-type dopant.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
What is claimed is:
1. A card connector comprising
a connector body,
a cover member in combination with the connector body,
contact terminals arranged in the connector body, and
a card-ejection preventing mechanism provided in a card-inserting opening of the connector body, wherein
the card-ejection preventing mechanism has a card-stopper cap adapted to be slidable along the card-inserting opening of the connector body.
2. A card connector as defined by claim 1, wherein the card-stopper cap comprises
an elastic member for elastically biasing.
3. A card connector as defined by claim 1, wherein the card-stopper cap comprises
an elastic member for elastically biasing, and
a holder for holding the card-stopper cap on the connector body.
4. A card connector as defined by claim 2, wherein a slanted guide surface is formed in the card-stopper cap, for the introduction of the card.
5. A card connector as defined by claim 3, wherein a slanted guide surface is formed in the card-stopper cap, for the introduction of the card.
6. A card connector as defined by claim 1, wherein the card-ejection preventing mechanism comprises
a support provided in the connector body,
a hole provided at a predetermined position of the support,
a pin inserted into the hole, and
a card-stopper cap slidable along the pin.
7. A card connector as defined by claim 6, wherein the card-ejection preventing mechanism comprises
at least one projection provided in the connector body, and
at least one projection provided in the card-stopper cap.
8. A card connector as defined by claim 1, wherein the connector body comprises
an ejector mechanism for removing the card from the card connector.
9. A card connector as defined by claim 1, wherein terminals are provided at an end of the connector body; the terminals being ground terminals.
10. A card connector as defined by claim 9, wherein the terminals are soldered terminals.
11. A card connector as defined by claim 1, wherein the cover member is made of a metallic plate.
12. A card connector as defined by claim 9, wherein the terminals are formed in one-piece with the cover member.
13. A card connector as defined by claim 12, wherein the terminals are soldered terminals.