ALD is based on the sequential use of a gas phase chemical process. The ALD cycle consists of four main steps: (1) pulsing of a precursor A, (2) purging of the reactor to remove excess precursor and ...

Viking Therapeutics Inc. on Wednesday reported positive data from an early-stage trial of a treatment for the rare, and often fatal, metabolic disorder X-linked adrenoleukodystrophy, or X-ALD.

Cerebral X-linked adrenoleukodystrophy (X-ALD) is a genetic disorder characterized by accumulation of very long chain fatty acids, which ultimately leads to demyelination. The mechanisms that ...

Except when it’s not. It turns out that the design of the ALD process can make life significantly more challenging for the chamber exhaust pumps. In atomic layer deposition, the first precursor gas, ...