Resist

In semiconductor fabrication, a resist is a thin layer used to transfer a circuit pattern to the semiconductor substrate which it is deposited upon. A resist can be patterned via lithography to form a (sub)micrometer-scale, temporary mask that protects selected areas of the underlying substrate during subsequent processing steps. The material used to prepare said thin layer is typically a viscous solution. Resists are generally proprietary mixtures of a polymer or its precursor and other small molecules (e.g. photoacid generators) that have been specially formulated for a given lithography technology. Resists used during photolithography are called photoresists.

Background

Semiconductor devices (as of 2005) are built by depositing and patterning many thin layers. The patterning steps, or lithography, define the function of the device and the density of its components.

For example, in the interconnect layers of a modern microprocessor, a conductive material (copper or aluminum) is inlaid in an electrically insulating matrix (typically fluorinated silicon dioxide or another low-k dielectric). The metal patterns define multiple electrical circuits that are used to connect the microchip's transistors to one another and ultimately to external devices via the chip's pins.

Resist (album)

Resist is the debut album by English electronica group Kosheen. The album was first released on June 25, 2001 in the Benelux countries as a Benelux Limited Edition by Moksha Records. The U.K. edition was then released on September 17 as a sixteen-track record by Sony BMG. The Japanese edition, released in 2003, was a Double-CD set containing fifteen B-sides and Remixes, plus the exclusive track "Tell Me".

Track listings

Trivia

The BBC used the song "Catch" in trailers for Season 1 of 24.

References

Resist (disambiguation)

Resist may refer to:

See also

Romulus (album)

Romulus is the debut full-length album by Canadian death metal band Ex Deo. The album was released on June 19, 2009 through Nuclear Blast Records. The album was recorded with producer and Kataklysm guitarist Jean-Francois Dagenais.

The album title refers to Romulus, one of the traditional founders and, according to the tradition recorded as history, the first king of Rome.

Recording and production

On December 5, 2008, the band announced they signed to Nuclear Blast Records for a record deal. This was the beginning of the creation of the forthcoming album. Shortly after, on December 31, 2008 the band announced they would air the first track of the upcoming album on January 11, 2009. The first track they aired was a demo version of Cry Havoc, followed by enthusiastic feedback from their fans on their MySpace page.

Since February 20 the band started a weekly studio blog to keep their fans in the loop while they were working on the album. The blogs also included a special section called Do you know Rome?, which contained a weekly historical fact about the Roman Empire. In total there were about 5 fact posted on their MySpace page. By the time they posted their second studio update the band already recorded most of the music and even completed the song Storm the Gates of Alesia. During the time they posted their third studio update Iacono announced he completed the vocals for the album.

Romulus (moon)

Romulus is the outer and larger moon of the main-belt asteroid 87 Sylvia, not to be confused with the directly Sun-orbiting asteroid 10386 Romulus. It follows an almost-circular close-to-equatorial orbit around the parent asteroid. In this respect it is similar to the other moon Remus.

Romulus was discovered in February 2001 from the Keck II telescope by Michael E. Brown and Jean-Luc Margot. Its full designation is (87) Sylvia I Romulus; before receiving its name, it was known as S/2001 (87) 1. The moon is named after Romulus, the mythological founder of Rome, one of the twins of Rhea Silvia raised by a wolf.

87 Sylvia has a low density, which indicates that it is probably a rubble pile formed when debris from a collision between its parent body and another asteroid re-accreted gravitationally. Therefore, it is likely that both Romulus and Remus, the second of Sylvia's moons, are smaller rubble piles which accreted in orbit around the main body from debris of the same collision. In this case their albedo and density are expected to be similar to Sylvia's.

Romulus (modelling kernel)

The Romulus b-rep solid modeler (or simply Romulus) was released in 1982 by Ian Braid, Charles Lang and the Shape Data team in Cambridge, England. It was the first commercial solid modeling kernel designed for straightforward integration into CAD software. Romulus incorporated the CAM-I AIS (Computer Aided Manufacturers International's Application Interface Specification) and was the only solid modeler (other than its successors Parasolid and ACIS) ever to offer a third-party standard API to facilitate high-level integration into a host CAD software program. Romulus was quickly licensed by Siemens, HP and several other CAD software vendors.

See also

References