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US08026135B2 Formation of shallow junctions by diffusion from a dielectric doped by cluster or molecular ion beams 有权
通过从簇或分子离子束掺杂的电介质扩散形成浅结

  • Patent Title: Formation of shallow junctions by diffusion from a dielectric doped by cluster or molecular ion beams
  • Patent Title (中): 通过从簇或分子离子束掺杂的电介质扩散形成浅结
  • Application No.: US12190337
    Application Date: 2008-08-12
  • Publication No.: US08026135B2
    Publication Date: 2011-09-27
  • Inventor: Amitabh Jain
  • Applicant: Amitabh Jain
  • Applicant Address: US TX Dallas
  • Assignee: Texas Instruments Incorporated
  • Current Assignee: Texas Instruments Incorporated
  • Current Assignee Address: US TX Dallas
  • Agent Jacqueline J. Garner; Wade J. Brady, III; Frederick J. Telecky, Jr.
  • Main IPC: H01L21/8238
  • IPC: H01L21/8238
Formation of shallow junctions by diffusion from a dielectric doped by cluster or molecular ion beams
Abstract:
A process for forming diffused region less than 20 nanometers deep with an average doping dose above 1014 cm−2 in an IC substrate, particularly LDD region in an MOS transistor, is disclosed. Dopants are implanted into a source dielectric layer using gas cluster ion beam (GCIB) implantation, molecular ion implantation or atomic ion implantation resulting in negligible damage in the IC substrate. A spike anneal or a laser anneal diffuses the implanted dopants into the IC substrate. The inventive process may also be applied to forming source and drain (S/D) regions. One source dielectric layer may be used for forming both NLDD and PLDD regions.
Abstract(Chinese):

公开了一种用于在IC衬底，特别是MOS晶体管中的LDD区域形成平均掺杂剂量高于1014cm -2的深度小于20nm的扩散区域的工艺。 使用气体簇离子束（GCIB）注入，分子离子注入或原子离子注入将掺杂剂注入到源电介质层中，导致IC衬底中的可忽略的损伤。 尖峰退火或激光退火将注入的掺杂剂扩散到IC衬底中。 本发明的方法也可以应用于形成源极和漏极（S / D）区域。 一个源介质层可用于形成NLDD和PLDD区域。

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IPC分类:
H 电学
H01 基本电气元件
H01L 半导体器件；其他类目中不包括的电固体器件（使用半导体器件的测量入G01；一般电阻器入H01C；磁体、电感器、变压器入H01F；一般电容器入H01G；电解型器件入H01G9/00；电池组、蓄电池入H01M；波导管、谐振器或波导型线路入H01P；线路连接器、汇流器入H01R；受激发射器件入H01S；机电谐振器入H03H；扬声器、送话器、留声机拾音器或类似的声机电传感器入H04R；一般电光源入H05B；印刷电路、混合电路、电设备的外壳或结构零部件、电气元件的组件的制造入H05K；在具有特殊应用的电路中使用的半导体器件见应用相关的小类）
H01L21/00 专门适用于制造或处理半导体或固体器件或其部件的方法或设备
H01L21/70 .由在一共用基片内或其上形成的多个固态组件或集成电路组成的器件或其部件的制造或处理；集成电路器件或其特殊部件的制造（由预制电组件组成的组装件的制造入H05K3/00，H05K13/00）
H01L21/77 ..在公共衬底中或上面形成的由许多固态元件或集成电路组成的器件的制造或处理（电可编程只读存储器或其多步骤的制造方法入H01L27/115）
H01L21/78 ...把衬底连续地分成多个独立的器件（改变表面物理特性或者半导体形状的切割入H01L21/304）
H01L21/82 ....制造器件，例如每一个由许多元件组成的集成电路
H01L21/822 .....衬底是采用硅工艺的半导体的（H01L21/8258优先）
H01L21/8232 ......场效应工艺
H01L21/8234 .......MIS工艺
H01L21/8238 ........互补场效应晶体管，例如CMOS
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