AIMO 和 NIMO 模式

理论

AIMO = Advanced Inverted Mode Operation. NIMO = non-IMO. Some e2v CCDs, such as deep depletion devices, cannot be operated in inverted mode. As a result, dark current is 100-200X higher than AIMO CCDs. Instead of 0.1 electron per pixel per second (eps) of dark current, for example, expect 10 eps. AIMO vs NIMO is not a choice made by a camera manufacturer like FLI. The CCD is manufactured by e2v either as AIMO, IMO（MPP）, or NIMO.

AIMO 模式暗电流较小，通常用在常温/无制冷情况下使用：

IMO or AIMO devices are generally used when medium to long integration
times are required at high to medium temperatures, typically in
systems with no cooler or a thermo-electric (TE) cooler.

AIMO 模式通常无法和深耗尽，Anit-blooming 技术共存：

IMO and AIMO devices are not currently available with deep depleted or
antiblooming options (except on select L3Vision™ sensors).

应用

NIMO 模式的驱动，水平转移会有 1-2 相置为高以吸引电子，下图为 E2V-48-20驱动时序。

NIMO

AIMO 模式依靠掺杂/反型层吸引电子，故在驱动时序常态为低，下图为 E2V-42-10 驱动时序。

AIMO

参考文献：

1. https://www.cornestech.co.jp/images/uploads/file/products/pdf/e2v_ccd_product_guide.pdf