Free with trial Anisotropic Etch: line art icon showing why plasma etching cuts straight down. A resist mask sits on a substrate with one opening, and from a point just below that gap a fan of arrows spreads into the material. Each length represents removal speed in its direction: longest pointing down, shorter at 25 and 57 degrees, shortest sideways. Because the downward rate far exceeds the lateral one, the cavity deepens while its walls stay vertical and aligned with the mask edges, with almost no undercut. In reactive ion etching this comes from ions accelerated perpendicular to the wafer plus a thin passivating film that protects each sidewall. The ratio between vertical and sideways speed defines anisotropy, vital for dense, high aspect ratio features such as deep trenches and contacts. Schematic, not to scale. Clean with no text, suited to microelectronics, cleanroom training, presentations and infographics. Part of the Semiconductor Manufacturing series of icons and process diagrams. Passivation vectors Anisotropic Etch : etch-rate arrows from a mask opening, long downward and short sideways, line icon. Anisotropic Etch: line art icon showing why plasma etching. Anisotropic Etch: line art icon showing why plasma etching cuts straight down. A resist mask sits on a substrate with one opening, and from a point just below that gap a fan of arrows spreads into the material. Each length represents removal speed in its direction: longest pointing down, shorter at 25 and 57 degrees, shortest sideways. Because the downward rate far exceeds the lateral one, the cavity deepens while its walls stay vertical and aligned with the mask edges, with almost no undercut. In reactive ion etching this comes from ions accelerated perpendicular to the wafer plus a thin passivating film that protects each sidewall. The ratio between vertical and sideways speed defines anisotropy, vital for dense, high aspect ratio features such as deep trenches and contacts. Schematic, not to scale. Clean with no text, suited to microelectronics, cleanroom training, presentations and infographics. Part of the Semiconductor Manufacturing series of icons and process diagrams.
Free with trial Lucky male merging colorful parts into each other. Passivation vectors Applied from the last part. Lucky male merging colorful parts into each other. Lucky male merging colorful parts into each other.
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