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In the context of this entry, "pellicle" means "thin film dust cover to protect a photomask". Particle contamination can be a significant problem in semiconductor manufacturing. A photomask is protected from particles by a pellicle – a thin transparent film stretched over a frame that is glued over one side of the photomask.
An illustration of OPC (Optical Proximity Correction). The blue Γ-like shape is what chip designers would like printed on a wafer, in green is the pattern on a mask after applying optical proximity correction, and the red contour is how the shape actually prints on the wafer (quite close to the desired blue target).
Pellicle (biology), a thin layer supporting the cell membrane in various protozoa; Pellicle mirror, a thin plastic membrane which may be used as a beam splitter or protective cover in optical systems; Pellicle (dental), the thin layer of salivary glycoproteins deposited on the teeth of many species through normal biologic processes
A pellicle mirror is an ultra-thin, ultra-lightweight semi-transparent mirror employed in the light path of an optical instrument, splitting the light beam into two separate beams, both of reduced light intensity. Splitting the beam allows its use for multiple purposes simultaneously.
When minimum pitch is reduced to 32 nm or less, stochastic defects are prevalent enough [158] to reconsider double patterning at larger design widths. At pitches of ~30 nm or less, the illumination is also restricted to extremely low pupil fills below 20%, [ 159 ] [ 160 ] which causes a significant portion of the EUV source power to be unused.
An overwrap or wrap is a method of sealing a contained product, typically as part of retail packaging. It is often made of plastic film (sometimes called polywrapping) or paper. [1] The wrap is applied over the bare product or can be applied over another form of packaging. It is typically used to protect products, but can be used decoratively.
In a client note on Jan. 8, Danley suggested that the process could wrap up “within the next couple of months,” writing that “the company is relatively far along in the process.”
In contrast to Direct-to-garment (DTG) printing, in which designs are printed directly onto the garments, DTF employs a two-step process. [citation needed] The first step in the Direct-to-film (DTF) printing method involves initially printing the design onto a PET (Polyethylene Terephthalate) film and then applying an adhesive powder to the printed film.