Low Specific Ohmic Contacts to n-type Germanium Using a Low Temperature NiGe Process

Low Specific Ohmic Contacts to n-type Germanium Using a Low Temperature NiGe Process
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使用低温 NiGe 工艺与 n 型锗进行低比欧姆接触

DOI:
10.1149/05009.1081ecst
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发表时间:
2013
期刊:
ECS Transactions
影响因子:
--
通讯作者:
Gallacher K
Gallacher K
中科院分区:
--
文献类型:
--
作者:
Gallacher K

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提出了一种新的n-Ge欧姆接触方案,采用Ni、Ge和Ni的三阶段沉积。在掺杂浓度为3 × 1019 cm-3的n-Ge上,在340 ° C退火30 s后沉积的Ni和Ge的最低接触电阻率为(1.68±0.4)× 10-7 Ω-cm 2,转移长度为(0.95 ± 0.12)。
A new n-Ge Ohmic contact scheme is demonstrated using a three stage deposition of Ni, Ge and Ni. The lowest specific contact resistivity demonstrated was (1.68±0.4) x 10–7 Ω-cm 2, with a low transfer length of (0.95 0.12) for deposited Ni and Ge annealed at 340 o C for 30 s on n-Ge with a doping density of 3 x 10 19 cm–3.