公开(公告)号：US20070290288A1

公开(公告)日：2007-12-20

申请号：US11894938

申请日：2007-08-22

申请人： Sheng Hsu ,  Jong-Jan Lee ,  Jer-Shen Maa ,  Douglas Tweet

发明人： Sheng Hsu ,  Jong-Jan Lee ,  Jer-Shen Maa ,  Douglas Tweet

IPC分类号： H01L31/10

CPC分类号： H01L31/1136

摘要： A floating body germanium (Ge) phototransistor with a photo absorption threshold bias region, and an associated fabrication process are presented. The method includes: providing a p-doped Silicon (Si) substrate; selectively forming an insulator layer overlying a first surface of the Si substrate; forming an epitaxial Ge layer overlying the insulator layer; forming a channel region in the Ge layer; forming a gate dielectric, gate electrode, and gate spacers; forming source/drain (S/D) regions in the Ge layer; and, forming a photo absorption threshold bias region in the Ge layer, adjacent the channel region. In one aspect, the second S/D region has a length, longer than the first S/D length. The photo absorption threshold bias region underlies the second S/D region. Alternately, the second S/D region is separated from the channel by an offset, and the photo absorption threshold bias region is the offset in the Ge layer, after a light p-doping.

摘要翻译： 提出了具有光吸收阈值偏置区域的浮体锗（Ge）光电晶体管，以及相关的制造工艺。 该方法包括：提供p掺杂硅（Si）衬底; 选择性地形成覆盖在所述Si衬底的第一表面上的绝缘体层; 形成覆盖绝缘体层的外延Ge层; 在Ge层中形成沟道区; 形成栅极电介质，栅电极和栅极间隔物; 在Ge层中形成源极/漏极（S / D）区域; 并且在Ge层中形成邻近沟道区的光吸收阈值偏置区域。 在一个方面，第二S / D区域具有比第一S / D长度更长的长度。 光吸收阈值偏置区域位于第二S / D区域的下方。 或者，第二S / D区域与沟道分离偏移，光吸收阈值偏置区域是在光p掺杂之后的Ge层中的偏移。

公开(公告)号：US20070218579A1

公开(公告)日：2007-09-20

申请号：US11416742

申请日：2006-05-03

申请人： Jong-Jan Lee ,  Sheng Hsu

发明人： Jong-Jan Lee ,  Sheng Hsu

IPC分类号： H01L21/00

CPC分类号： H01L27/14647 ,  H01L27/14603 ,  H01L27/14632 ,  H01L27/14645 ,  H01L27/14683 ,  H01L27/14689

摘要： A CMOS active pixel sensor (APS) imager cell is provided on a silicon-on-insulator (SOI) substrate. The APS imager cell is made from a SOI substrate including a silicon (Si) substrate, a silicon dioxide insulator overlying the substrate, and a Si top layer overlying the insulator. A pixel sensor cell including a photodiode is formed in the Si top layer of the SOI substrate. A pixel transistor set is formed in the SOI top Si layer and connected to the pixel sensor cell. The pixel transistor set includes at least one p-channel MOS (PMOS) transistor and at least one n-channel MOS (NMOS) transistor. In the case of a three-transistor (3T) pixel transistor set, the selected transistor is NMOS, the reset transistor is PMOS, and the source follower may be either NMOS or PMOS.

摘要翻译： 在绝缘体上硅（SOI）衬底上提供CMOS有源像素传感器（APS）成像器单元。 APS成像器单元由包括硅（Si）衬底，覆盖衬底的二氧化硅绝缘体和覆盖绝缘体的Si顶层的SOI衬底制成。 在SOI衬底的Si顶层中形成包括光电二极管的像素传感器单元。 像素晶体管组形成在SOI顶部Si层中并连接到像素传感器单元。 像素晶体管组包括至少一个p沟道MOS（PMOS）晶体管和至少一个n沟道MOS（NMOS）晶体管。 在三晶体管（3T）像素晶体管组的情况下，所选择的晶体管是NMOS，复位晶体管是PMOS，源极跟随器可以是NMOS或PMOS。

公开(公告)号：US20060281232A1

公开(公告)日：2006-12-14

申请号：US11149891

申请日：2005-06-10

申请人： Sheng Hsu ,  Jong-Jan Lee ,  Jer-Shen Maa ,  Douglas Tweet

发明人： Sheng Hsu ,  Jong-Jan Lee ,  Jer-Shen Maa ,  Douglas Tweet

IPC分类号： H01L21/84

CPC分类号： H01L21/8221 ,  H01L21/84 ,  H01L27/0688 ,  H01L27/1203 ,  H01L29/78684

摘要： A method of fabricating a silicon-germanium CMOS includes preparing a silicon substrate wafer; depositing an insulating layer on the silicon substrate wafer; patterning and etching the insulating layer; depositing a layer of polycrystalline germanium on the insulating layer and on at least a portion of the silicon substrate wafer; patterning and etching the polycrystalline germanium; encapsulating the polycrystalline germanium with an insulating material; rapidly thermally annealing the wafer at a temperature sufficient to melt the polycrystalline germanium; cooling the wafer to promote liquid phase epitaxy of the polycrystalline germanium, thereby forming a single crystal germanium layer; and completing the CMOS device.

摘要翻译： 制造硅 - 锗CMOS的方法包括制备硅衬底晶片; 在硅衬底晶片上沉积绝缘层; 图案化和蚀刻绝缘层; 在所述绝缘层和所述硅衬底晶片的至少一部分上沉积多晶锗层; 图案化和蚀刻多晶锗; 用绝缘材料封装多晶锗; 在足以熔化多晶锗的温度下快速热退火晶片; 冷却晶片以促进多晶锗的液相外延，从而形成单晶锗层; 并完成CMOS设备。

公开(公告)号：US20060194415A1

公开(公告)日：2006-08-31

申请号：US11069422

申请日：2005-02-28

申请人： Jong-Jan Lee ,  Jer-Shen Maa ,  Sheng Hsu ,  Douglas Tweet

发明人： Jong-Jan Lee ,  Jer-Shen Maa ,  Sheng Hsu ,  Douglas Tweet

IPC分类号： H01L21/30 ,  H01L21/46

CPC分类号： H01L27/14634 ,  H01L27/14649 ,  H01L27/14689 ,  H01L27/1469 ,  H01L31/028 ,  H01L31/103 ,  H01L31/1804 ,  H01L31/1808 ,  H01L31/1864 ,  Y02E10/547 ,  Y02P70/521

摘要： A method of fabricating a germanium infrared sensor for a CMOS imager includes preparation a donor wafer, including: ion implantation into a silicon wafer to form a P+ silicon layer; growing an epitaxial germanium layer on the P+ silicon layer, forming a silicon-germanium interface; cyclic annealing; and implanting hydrogen ions to a depth at least as deep as the P+ silicon layer to form a defect layer; preparing a handling wafer, including: fabricating a CMOS integrated circuit on a silicon substrate; depositing a layer of refractory metal; treating the surfaces of the donor wafer and the handling wafer for bonding; bonding the handling wafer and the donor wafer to form a bonded structure; splitting the bonded structure along the defect layer; depositing a layer of indium tin oxide on the germanium layer; completing the IR sensor.

摘要翻译： 制造用于CMOS成像器的锗红外传感器的方法包括制备施主晶片，其包括：离子注入到硅晶片中以形成P +硅层; 在P +硅层上生长外延锗层，形成硅 - 锗界面; 循环退火; 以及将氢离子注入至少与P +硅层一样深的深度以形成缺陷层; 制备处理晶片，包括：在硅衬底上制造CMOS集成电路; 沉积难熔金属层; 处理供体晶片的表面和用于结合的处理晶片; 结合处理晶片和施主晶片以形成结合结构; 沿着缺陷层分离粘结结构; 在锗层上沉积一层氧化铟锡; 完成IR传感器。

公开(公告)号：US20060172475A1

公开(公告)日：2006-08-03

申请号：US11050495

申请日：2005-02-01

申请人： Sheng Hsu ,  Jong-Jan Lee

发明人： Sheng Hsu ,  Jong-Jan Lee

IPC分类号： H01L21/336 ,  H01L21/84

CPC分类号： H01L29/66772 ,  Y10S438/926

摘要： A method of fabricating an ultrathin SOI memory transistor includes preparing a substrate, including forming an ultrathin SOI layer of the substrate; adjusting the threshold voltage of the SOI layer; depositing a layer of silicon oxide on the SOI layer; patterning and etching the silicon oxide layer to form a sacrificial oxide gate in a gate region; depositing a layer of silicon nitride and forming the silicon nitride into a silicon nitride sidewall for the sacrificial oxide gate; depositing and smoothing a layer of amorphous silicon; selectively etching the sacrificial gate oxide; growing a layer of oxide in the gate region; depositing and smoothing a second layer of amorphous silicon; patterning and etching the second layer of amorphous silicon; implanting ion to form a source region and a drain region; annealing the structure; and depositing a layer of passivation oxide.

摘要翻译： 制造超薄SOI存储晶体管的方法包括：制备衬底，包括形成衬底的超薄SOI层; 调整SOI层的阈值电压; 在SOI层上沉积一层氧化硅; 图案化和蚀刻氧化硅层以在栅极区域中形成牺牲氧化物栅极; 沉积氮化硅层并将氮化硅形成用于牺牲氧化物栅极的氮化硅侧壁; 沉积和平滑一层非晶硅; 选择性地蚀刻牺牲栅极氧化物; 在栅极区生长一层氧化物; 沉积和平滑第二层非晶硅; 图案化和蚀刻第二层非晶硅; 注入离子以形成源区和漏区; 退火结构; 并沉积一层钝化氧化物。

公开(公告)号：US20060038242A1

公开(公告)日：2006-02-23

申请号：US10922712

申请日：2004-08-20

申请人： Sheng Hsu ,  Tingkai Li ,  Jong-Jan Lee

发明人： Sheng Hsu ,  Tingkai Li ,  Jong-Jan Lee

IPC分类号： H01L29/94 ,  H01L29/76

CPC分类号： H01L29/7869 ,  H01L29/516 ,  H01L29/66545 ,  H01L29/66553 ,  H01L29/78621

摘要： The present invention discloses a novel transistor structure employing semiconductive metal oxide as the transistor conductive channel. By replacing the silicon conductive channel with a semiconductive metal oxide channel, the transistors can achieve simpler fabrication process and could realize 3D structure to increase circuit density. The disclosed semiconductive metal oxide transistor can have great potential in ferroelectric non volatile memory device with the further advantages of good interfacial properties with the ferroelectric materials, possible lattice matching with the ferroelectric layer, reducing or eliminating the oxygen diffusion problem to improve the reliability of the ferroelectric memory transistor. The semiconductive metal oxide film is preferably a metal oxide exhibiting semiconducting properties at the transistor operating conditions, for example, In2O3 or RuO2. The present invention ferroelectric transistor can be a metal-ferroelectric-semiconductive metal oxide FET having a gate stack of a top metal electrode disposed on a ferroelectric layer disposed on a semiconductive metal oxide channel on a substrate. Using additional layer of bottom electrode and gate dielectric, the present invention ferroelectric transistor can also be a metal-ferroelectric-metal (optional)-gate dielectric (optional)-semiconductive metal oxide FET.

摘要翻译： 本发明公开了一种采用半导体金属氧化物作为晶体管导电通道的新型晶体管结构。 通过用半导体金属氧化物沟道代替硅导电通道，晶体管可以实现更简单的制造工艺，并且可以实现3D结构以增加电路密度。 所公开的半导体金属氧化物晶体管可以在铁电非易失性存储器件中具有很大的潜力，具有与铁电材料良好的界面性质，与铁电层的可能的晶格匹配，减少或消除氧扩散问题以提高可靠性的另外的优点 铁电存储晶体管。 半导体金属氧化物膜优选是在晶体管工作条件下表现出半导体性质的金属氧化物，例如在二氧化铈或RuO 2 。 本发明的铁电晶体管可以是金属铁电半导体金属氧化物FET，其具有设置在设置在基板上的半导体金属氧化物沟道上的铁电层上的顶部金属电极的栅极堆叠。 使用附加的底部电极和栅极电介质层，本发明的铁电晶体管也可以是金属 - 铁电 - 金属（可选） - 门电介质（可选） - 导电金属氧化物FET。

公开(公告)号：US20050070115A1

公开(公告)日：2005-03-31

申请号：US10677005

申请日：2003-09-30

申请人： Jer-Shen Maa ,  Jong-Jan Lee ,  Douglas Tweet ,  Sheng Hsu

发明人： Jer-Shen Maa ,  Jong-Jan Lee ,  Douglas Tweet ,  Sheng Hsu

IPC分类号： H01L21/20 ,  H01L21/302 ,  H01L21/461 ,  H01L21/762

CPC分类号： H01L21/76254

摘要： A method of forming a silicon-germanium layer on an insulator includes depositing a layer of silicon-germanium on a silicon substrate to form a silicon/silicon-germanium portion; implanting hydrogen ions into the silicon substrate between about 500 Å to 1 μm below a silicon-germanium/silicon interface; bonding the silicon/silicon-germanium portion to an insulator substrate to form a couplet; thermally annealing the couplet in a first thermal annealing step to split the couplet; patterning and etching the silicon-germanium-on-insulator portion to remove portions of the silicon and SiGe layers; etching the silicon-germanium-on-insulator portion to remove the remaining silicon layer; thermally annealing the silicon-germanium-on-insulator portion in a second annealing step to relaxed the SiGe layer; and depositing a layer of strained silicon about the SiGe layer.

摘要翻译： 在绝缘体上形成硅 - 锗层的方法包括在硅衬底上沉积硅 - 锗层以形成硅/硅 - 锗部分; 在硅 - 锗/硅界面之下的约500埃至1微米处将氢离子注入到硅衬底中; 将硅/硅锗部分接合到绝缘体基板上以形成对联体; 在第一热退火步骤中对联接件进行热退火以分离联接件; 图案化和蚀刻绝缘体上硅部分以去除部分硅和SiGe层; 蚀刻绝缘体上硅部分以除去剩余的硅层; 在第二退火步骤中对绝缘体上硅部分进行热退火以松弛SiGe层; 以及在SiGe层周围沉积一层应变硅。

公开(公告)号：US20070170536A1

公开(公告)日：2007-07-26

申请号：US11339011

申请日：2006-01-25

申请人： Sheng Hsu ,  Jong-Jan Lee ,  Jer-Shen Maa ,  Douglas Tweet

发明人： Sheng Hsu ,  Jong-Jan Lee ,  Jer-Shen Maa ,  Douglas Tweet

IPC分类号： H01L31/00

CPC分类号： H01L31/1055 ,  H01L31/1808 ,  H01L31/1872 ,  Y02E10/50

摘要： A device and associated method are provided for fabricating a liquid phase epitaxial (LPE) Germanium-on-Insulator (GOI) photodiode with buried high resistivity Germanium (Ge) layer. The method provides a silicon (Si) substrate, and forms a bottom insulator overlying the Si substrate with a Si seed access area. Then, a Ge P-I-N diode is formed with an n +-doped (n+) mesa, a p+-doped (p+) Ge bottom insulator interface and mesa lateral interface, and a high resistivity Ge layer interposed between the p+ Ge and n+ Ge. A metal electrode is formed overlying a region of the p+ Ge lateral interface, and a transparent electrode is formed overlying the n+ Ge mesa. In one aspect, the method deposits a silicon nitride layer temporary cap overlying the high resistivity Ge layer, and an annealing is performed to epitaxially crystallize the Ge bottom interface and high resistivity Ge layer.

摘要翻译： 提供了一种用于制造具有埋置的高电阻率锗（Ge）层的液相外延（LPE）绝缘体锗绝缘体（GOI）光电二极管的器件和相关方法。 该方法提供硅（Si）衬底，并且形成具有Si种子存取区域的覆盖Si衬底的底部绝缘体。 然后，形成具有n +掺杂（n +）台面，p +掺杂（p +）Ge底部绝缘体界面和台面侧面界面的Ge P-I-N二极管，以及插入在p + Ge和n + Ge之间的高电阻率Ge层。 在p + Ge侧面界面的区域上形成金属电极，形成覆盖n + Ge台面的透明电极。 在一个方面，该方法沉积覆盖高电阻率Ge层的氮化硅层临时盖，并进行退火以使Ge底界面和高电阻率Ge层外延结晶。

公开(公告)号：US20070141744A1

公开(公告)日：2007-06-21

申请号：US11312967

申请日：2005-12-19

申请人： Jong-Jan Lee ,  Douglas Tweet ,  Jer-Shen Maa ,  Sheng Hsu

发明人： Jong-Jan Lee ,  Douglas Tweet ,  Jer-Shen Maa ,  Sheng Hsu

IPC分类号： H01L21/00

CPC分类号： H01L31/105 ,  H01L31/1808 ,  H01L31/1864 ,  Y02E10/50 ,  Y02P70/521 ,  Y10S438/933

摘要： A method of fabricating a low, dark-current germanium-on-silicon PIN photo detector includes preparing a P-type silicon wafer; implanting the P-type silicon wafer with boron ions; activating the boron ions to form a P+ region on the silicon wafer; forming a boron-doped germanium layer on the P+ silicon surface; depositing an intrinsic germanium layer on the born-doped germanium layer; cyclic annealing, including a relatively high temperature first anneal step and a relatively low temperature second anneal step; repeating the first and second anneal steps for about twenty cycles, thereby forcing crystal defects to the P+ germanium layer; implanting ions in the surface of germanium layer to form an N+ germanium surface layer and a PIN diode; activating the N+ germanium surface layer by thermal anneal; and completing device according to known techniques to form a low dark-current germanium-on-silicon PIN photodetector.

摘要翻译： 制造低，暗电流锗硅PIN光检测器的方法包括制备P型硅晶片; 用硼离子注入P型硅晶片; 激活硼离子以在硅晶片上形成P +区; 在P +硅表面上形成硼掺杂锗层; 在天然掺杂锗层上沉积本征锗层; 循环退火，包括相对高温的第一退火步骤和相对低温的第二退火步骤; 重复第一和第二退火步骤约20个循环，由此迫使晶体缺陷到P +锗层; 在锗层表面注入离子以形成N +锗表面层和PIN二极管; 通过热退火激活N +锗表面层; 并根据已知技术完成器件以形成低暗电流锗硅PIN光电探测器。

公开(公告)号：US20070001163A1

公开(公告)日：2007-01-04

申请号：US11174035

申请日：2005-07-01

申请人： Jong-Jan Lee ,  Sheng Hsu ,  Jer-Shen Maa ,  Douglas Tweet

发明人： Jong-Jan Lee ,  Sheng Hsu ,  Jer-Shen Maa ,  Douglas Tweet

IPC分类号： H01L31/00

CPC分类号： H01L31/1136 ,  H01L31/028 ,  H01L31/1808 ,  Y02E10/547

摘要： A floating body germanium (Ge) phototransistor and associated fabrication process are presented. The method includes: providing a silicon (Si) substrate; selectively forming an insulator layer overlying the Si substrate; forming an epitaxial Ge layer overlying the insulator layer using a liquid phase epitaxy (LPE) process; forming a channel region in the Ge layer; forming a gate dielectric, gate electrode, and gate spacers overlying the channel region; and, forming source/drain regions in the Ge layer. The LPE process involves encapsulating the Ge with materials having a melting temperature greater than a first temperature, and melting the Ge using a temperature lower than the first temperature. The LPE process includes: forming a dielectric layer overlying deposited Ge; melting the Ge; and, in response to cooling the Ge, laterally propagating an epitaxial growth front into the Ge from an underlying Si substrate surface.

摘要翻译： 提出了一种浮体锗（Ge）光电晶体管及其制造工艺。 该方法包括：提供硅（Si）衬底; 选择性地形成覆盖Si衬底的绝缘体层; 使用液相外延（LPE）工艺形成覆盖绝缘体层的外延Ge层; 在Ge层中形成沟道区; 形成覆盖所述沟道区的栅极电介质，栅电极和栅极间隔; 并且在Ge层中形成源/漏区。 LPE工艺包括用具有大于第一温度的熔化温度的材料包封Ge，并且使用低于第一温度的温度来熔化Ge。 LPE工艺包括：形成覆盖沉积Ge的介电层; 融化Ge; 并且响应于冷却Ge，将外延生长前沿从下面的Si衬底表面横向传播到Ge中。