Abstract:
PROBLEM TO BE SOLVED: To provide an optical sensor structure and a method for forming the structure. SOLUTION: The optical sensor structure contains (a) a semiconductor substrate and (b) a light-collecting region on the semiconductor substrate. Also, the optical sensor structure contains a funnel-shaped optical pipe on the light-collecting region. The funnel-shaped optical pipe contains (i) a lower cylindrical portion on the light-collecting region and (ii) a funnel-shaped portion, having a tapering shape and arranged on the lower cylindrical portion, while physically coming into direct contact with the lower cylindrical portion. This structure further contains a color filter region on the funnel-shaped optical pipe. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a CMOS image sensor having a photodetector diode formed on the side wall of a deep trench, achieving separation of a collector, and thus simplifying a process. SOLUTION: A pixel sensor cell includes a semiconductor substrate having a surface, and a photoelectric element having a non-transversely oriented charge collection area which is formed on the substrate and is completely separated from a physical boundary including the substrate surface. The photoelectric element includes a trench which is formed on the substrate made of a first conductive material and has side walls, a first doped layer which is formed beside at least one of the side walls and is made of a second conductive material, and a second doped layer which is formed between the first doped layer and at least one of the trench side walls and is further formed on the substrate surface. The second doped layer separates the first doped layer from at least one of the trench side walls and the substrate surface. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a solid-state image sensor and a method of manufacturing the same. SOLUTION: A solid-state image sensor has a substrate on which a photosensitive region is provided. In the solid-state image sensor, an nonuniform reflection layer is arranged, on a side opposite to the incidence side of the emitted light of the photosensitive region. The nonuniform reflecting layer has a shape for reflecting an incident emitted light that is not captured by one photosensitive region at first to return it to the photosensitive area, whereas which does not reflect the incident emitted light that is not captured by the one photosensitive region, at first, to other photosensitive region provided adjacent to the one photosensitive region on the substrate. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an imaging sensor having an array of FET pixels, and a method of forming the imaging sensor. SOLUTION: Each pixel is a semiconductor island such as N-type silicon on a silicon on insulator (SOI) wafer. FETs are formed in one photodiode electrode such as a P-well cathode. A color filter may be attached to an opposite surface of the island. A protective layer (such as a glass or quartz layer) or a protective window is fixed to the pixel array at the color filter. An imaging sensor may be illuminated from the backside with cell wiring above a cell. Thus, an optical signal passing through the protective layer is filtered by the color filter and is selectively sensed by a corresponding photo-sensor. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
In a method of forming an integrated circuit structure, a first compensating implant (Fig. 2; 120) with opposite dopant polarity to the semiconductor channel implant (Fig. 1; 114) is implanted uniformly into a substrate for example a silicon on insulator (SOI) substrate, to a depth shallower than a semiconductor channel implant depth. A mask 130 is patterned on the first compensating implant 122 in the substrate, including an opening 138 exposing a channel location of the substrate. A second compensating implant 140 called an anti-halo implant has doping polarity the same as the channel implant polarity, and is implanted into the channel location through the mask opening in the channel location and at an angle offset from perpendicular to the top surface of the substrate. The second compensating implant 142 is particularly useful for long channel transistors. It is positioned closer to a first side of the channel location relative to an opposite second side of the channel location. A gate insulator layer 132 and gate conductor (Fig. 5; 152) are formed above the channel location of the substrate in the mask opening 138. The mask is removed to leave the gate conductor standing on the channel location of the substrate. Source and drain extension regions (Fig. 6; 162) are formed by implanting using the gate structure as a mask, after which gate sidewalls (Fig. 7; 170) are formed and source and drain implants (Fig. 7; 174, 176) are implanted using the gate sidewalls as masks. The width of the anti-halo implant 142 is automatically matched to the width of gate.
Abstract:
Switchable and/or tunable filters, methods of manufacture and design structures are disclosed herein. The method of forming the filters includes forming at least one piezoelectric (PE) filter structure comprising a plurality of electrodes 14, 16 formed on a PE 12. The method further includes forming a micro-electro-mechanical structure (MEMS) comprising a MEMS beam 26 formed above the PE substrate and at a location in which, upon actuation, the MEMS beam shorts the PE filter structure by contacting at least one of the plurality of electrodes. The PE filter may be surface acoustic wave (SAW) filter. The SAW filter may comprise input and output transducers comprising interleaved electrodes. The PE filter may be a bulk acoustic wave (BAW) filter. The beam may be perpendicular to the interleaved electrodes and may cover the whole area of the electrodes of at least one filter structure. The structure may be formed using computer aided design. In one embodiment the frequency of a filter may be determined and the beam may be actuated to contact one of the electrodes depending on the frequency.
Abstract:
Switchable and/or tunable filters, methods of manufacture and design structures are disclosed herein. The method of forming the filters includes forming at least one piezoelectric filter structure comprising a plurality of electrodes formed on a piezoelectric substrate. The method further includes forming a micro-electro-mechanical structure (MEMS) comprising a MEMS beam formed above the piezoelectric substrate and at a location in which, upon actuation, the MEMS beam shorts the piezoelectric filter structure by contacting at least one of the plurality of electrodes.
Abstract:
A heterojunction bipolar transistor 100 and a method of forming the heterojunction bipolar transistor with a raised collector pedestal 125 in reduced dimension for reduced base-collector junction capacitance. The raised collector pedestal 125 is on the top surface of a substrate 121, 120, 101 and extends vertically through dielectric layer(s) 103, 104. The raised collector pedestal is un-doped or low-doped and is aligned above a sub-collector region 120, 121 contained within the substrate 101 and is narrower than that sub-collector region 120. An intrinsic base layer 105,132/131 is above the raised collector pedestal and the dielectric layer(s) 103, 104. An extrinsic base layer 141 is above the intrinsic base layer 132, 131. Thus, the space between the extrinsic base layer and the sub-collector region is increased. This increased space is filled by dielectric material and the electrical connection between the intrinsic base layer and the sub-collector region is provided by the relatively narrow, un-doped or low-doped, raised collector pedestal. Consequently the base-collector junction capacitance is reduced and the maximum oscillation frequency (fmax) is increased.
Abstract:
A method of forming an integrated circuit structure implants a first compensating implant into a substrate. The method patterns a mask on the first compensating implant in the substrate. The mask includes an opening exposing a channel location of the substrate. The method implants a second compensating implant into the channel location of the substrate. The second compensating implant is made through the opening in the mask and at an angle that is offset from perpendicular to the top surface of the substrate. The second compensating implant is positioned closer to a first side of the channel location relative to an opposite second side of the channel location and the second compensating implant comprises a material having the same doping polarity as the semiconductor channel implant. Then, the method forms a gate conductor above the channel location of the substrate in the opening of the mask.