摘要:
A method is provided for forming a near infrared (NIR) active pixel sensor array on a silicon-on-insulator (SOI) substrate. The method forms a first wafer comprising a high resistance first Si substrate and a moderately doped first Si layer, and forms a second wafer comprising a first silicon oxide layer and a second Si layer. The method bonds the first wafer to the second wafer, forming a SOI substrate. Then, a diode is formed with a p-n junction space charge region extending into the first Si substrate. A thin-film transistor (TFT) is formed in the second Si layer, and interconnects are formed between the TFT and the diode. For example, first Si substrate may have a resistivity of greater than 100 ohm-cm, and the first Si layer may have a dopant concentration in the range of about 1×1016 to about 5×1018 cm−3.
摘要:
A method of fabricating a germanium photo detector includes preparing a silicon substrate; depositing and planarizing a silicon oxide layer; forming contact holes in the silicon oxide layer which communicate with the underlying silicon substrate; growing an epitaxial germanium layer of a first type on the silicon oxide layer and in the contact holes; growing an intrinsic germanium layer on the epitaxial germanium layer and any exposed silicon oxide layer; growing a germanium layer of a second type on the intrinsic germanium layer and any exposed silicon oxide layer; depositing a layer of covering material take from the group of materials consisting of polysilicon, polysilicon-germanium and In2O3—SnO2; and etching the covering material to form individual sensing elements.
摘要翻译:制造锗光电检测器的方法包括制备硅衬底; 沉积和平坦化氧化硅层; 在氧化硅层中形成与底层硅衬底连通的接触孔; 在氧化硅层和接触孔中生长第一类型的外延锗层; 在外延锗层和任何暴露的氧化硅层上生长内在的锗层; 在内部锗层和任何暴露的氧化硅层上生长第二类型的锗层; 沉积一层覆盖材料取自由多晶硅,多晶硅 - 锗和In 2 N 3 O 3 -SnO 2 2组成的材料组。 并蚀刻覆盖材料以形成单独的感测元件。
摘要:
A high-density Germanium (Ge)-on-Insulator (GOI) photodiode array and corresponding fabrication method are provided. The method includes: forming an array of pixel driver nMOST devices, each device having a gate connected to a row line in a first orientation, a first source/drain (S/D) region, and a second S/D region connected to Vdd; forming a P-I-N Ge diode for each pixel as follows: forming a n+ region; forming an intrinsic Ge region overlying the n+ region; forming a p+ junction in the intrinsic Ge; and, isolating the P-I-N Ge diodes; and, forming an Indium Tin oxide (ITO) column in a second orientation, about orthogonal to the first orientation, overlying the P-I-N Ge diodes.
摘要:
A method of fabricating a thin film germanium photodetector includes preparing a silicon substrate; fabricating a CMOS device on the silicon substrate; preparing a germanium substrate; preparing surfaces of each substrate for bonding; bonding the germanium substrate to the CMOS-bearing silicon substrate to form a bonded structure; removing a portion of the germanium substrate from the bonded structure; forming a PIN diode in the germanium substrate; removing a portion of the germanium layer by etching; and completing the germanium photo detector.
摘要:
Transistors fabricated on SSOI (Strained Silicon On Insulator) substrate, which comprises a strained silicon layer disposed directly on an insulator layer, have enhanced device performance due to the strain-induced band modification of the strained silicon device channel and the limited silicon volume because of the insulator layer. The present invention discloses SSOI substrate fabrication processes comprising various novel approaches. One is the use of a thin relaxed SiGe layer as the strain-induced seed layer to facilitate integration and reduce processing cost. Another is the formation of split implant microcracks deep in the silicon substrate to reduce the number of threading dislocations reaching the strained silicon layer. And lastly is a two step annealing/thinning process for the strained silicon/SiGe multilayer film transfer without blister or flaking formation.
摘要:
A dual gate strained-Si MOSFET with thin SiGe dislocation regions and a method for fabricating the same are provided. The method comprises: forming a first layer of relaxed SiGe overlying a substrate, having a thickness of less than 5000 Å; forming a second layer of relaxed SiGe overlying the substrate and adjacent to the first layer of SiGe, having a thickness of less than 5000 Å; forming a layer of strained-Si overlying the first and second SiGe layers; forming a shallow trench isolation region interposed between the first SiGe layer and the second SiGe layer; forming an n-well in the substrate and the overlying first layer of SiGe; forming a p-well in the substrate and the overlying second layer of SiGe; forming channel regions, in the strained-Si, and forming PMOS and NMOS transistor source and drain regions.
摘要:
A method of fabricating a silicon-on-plastic layer via layer transfer includes depositing a layer of SiGe on a silicon substrate; depositing a layer of silicon; implanting splitting hydrogen ions into the silicon substrate; bonding a glass substrate to the silicon layer; splitting the wafer; removing the silicon layer and a portion of the SiGe layer; depositing a dielectric on the silicon side of the silicon-on-glass wafer; applying adhesive and bonding a plastic substrate to the silicon side of the silicon-on-glass wafer; removing the glass from the glass side of the bonded, silicon-on-glass wafer to form a silicon-on-plastic wafer; and completing a desired IC device on the silicon-on-plastic. Multi-level structure may be fabricated according to the method of the invention by repeating the last few steps of the method of the invention.
摘要:
A method of fabricating a germanium photo detector includes preparing a silicon substrate wafer and depositing and planarizing a silicon oxide layer on the silicon substrate. Contact holes are formed in the silicon oxide layer. An N+ epitaxial germanium layer is grown on the silicon oxide layer and in the contact holes. An N+ germanium layer is formed by ELO. The structure is smoothed and thinned. An intrinsic germanium layer is grown on the N+ epitaxial germanium layer. A P+ germanium layer is formed on the intrinsic germanium layer and a silicon oxide overcoat is deposited. A window is opened through the silicon oxide overcoat to the P+ germanium layer. A layer of conductive material is deposited on the silicon oxide overcoat and in the windows therein. The conductive material is etched to form individual sensing elements.
摘要:
A method of fabricating resistor memory array includes preparing a silicon substrate; depositing a bottom electrode, a sacrificial layer, and a hard mask layer on a substrate P+ layer; masking, patterning and etching to remove, in a first direction, a portion of the hard mask, the sacrificial material, the bottom electrode; depositing a layer of silicon oxide; masking, patterning and etching to remove, in a second direction perpendicular to the first direction, a portion of the hard mask, the sacrificial material, the bottom electrode;, and over etching to an N+ layer and at least 100 nm of the silicon substrate; depositing of a layer of silicon oxide; etching to remove any remaining hard mask and any remaining sacrificial material; depositing a layer of CMR material; depositing a top electrode; applying photoresist, patterning the photoresist and etching the top electrode; and incorporating the memory array into an integrated circuit.
摘要:
Disclosing is a strained silicon finFET device having a strained silicon fin channel in a double gate finFET structure. The disclosed finFET device is a double gate MOSFET consisting of a silicon fin channel controlled by a self-aligned double gate for suppressing short channel effect and enhancing drive current. The silicon fin channel of the disclosed finFET device is a strained silicon fin channel, comprising a strained silicon layer deposited on a seed fin having different lattice constant, for example, a silicon layer deposited on a silicon germanium seed fin, or a carbon doped silicon layer deposited on a silicon seed fin. The lattice mismatch between the silicon layer and the seed fin generates the strained silicon fin channel in the disclosed finFET device to improve hole and electron mobility enhancement, in addition to short channel effect reduction characteristic inherently in a finFET device.