Sheet Resistance方块电阻
Sheet resistance is a measure of the resistance of a thin uniform conductive or semiconductive film, expressed in ohms per square and calculated as material resistivity divided by film thickness. Because this value is independent of the square dimensions for a uniform film, it is widely used in semiconductor process documentation and electrical test records to specify and compare doped layers, conductive films, and thin-film materials.
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Where this term appears
The term commonly appears in semiconductor fab documents such as process flow specifications, inline metrology reports, and wafer acceptance test data, where sheet resistance targets are listed for ion implantation, diffusion, metallization, or transparent conductive films. Localizers encounter it in equipment manuals, data sheets, and yield reports that describe layer monitoring and out-of-spec conditions.
Translation checks
A frequent mistranslation is converting ohms per square into ohms per square meter or ohms per square inch, or treating sheet resistance as total resistance across a fixed area. This can corrupt process limits and acceptance criteria in translated specifications, leading readers to misjudge whether a wafer layer meets target conductivity and potentially causing incorrect lot disposition decisions.
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