Die (integrated circuit)

A die in the context of integrated circuits is a small block of semiconducting material, on which a given functional circuit is fabricated. Typically, integrated circuits are produced in large batches on a single wafer of electronic-grade silicon (EGS) or other semiconductor (such as GaAs) through processes such as photolithography. The wafer is cut (“diced”) into many pieces, each containing one copy of the circuit. Each of these pieces is called a die.

There are three commonly used plural forms: dice, dies, and die.

Images

Single NPN bipolar junction transistor die.

Single NPN bipolar junction transistor die.

Close-up of an RGB light-emitting diode, showing the three individual silicon dice.

Close-up of an RGB light-emitting diode, showing the three individual silicon dice.

A small-scale integrated circuit die, with bond wires attached.

A small-scale integrated circuit die, with bond wires attached.

A VLSI integrated-circuit die.

A VLSI integrated-circuit die.

Die (manufacturing)

A die is a specialized tool used in manufacturing industries to cut or shape material mostly using a press. Like molds, dies are generally customized to the item they are used to create. Products made with dies range from simple paper clips to complex pieces used in advanced technology.

Die forming

Forming dies are typically made by tool and die makers and put into production after mounting into a press. The die is a metal block that is used for forming materials like sheet metal and plastic. For the vacuum forming of plastic sheet only a single form is used, typically to form transparent plastic containers (called blister packs) for merchandise. Vacuum forming is considered a simple molding thermoforming process but uses the same principles as die forming. For the forming of sheet metal, such as automobile body parts, two parts may be used: one, called the punch, performs the stretching, bending, and/or blanking operation, while another part, called the die block, securely clamps the workpiece and provides similar stretching, bending, and/or blanking operation. The workpiece may pass through several stages using different tools or operations to obtain the final form. In the case of an automotive component there will usually be a shearing operation after the main forming is done and then additional crimping or rolling operations to ensure that all sharp edges are hidden and to add rigidity to the panel.

State

State may refer to:

Law and politics

Science and technology

State (CTA Englewood Line station)

State was a station on the Englewood Branch of the Chicago 'L'. The station opened on November 3, 1905 and closed on September 2, 1973 as part of a group of budget-related CTA station closings.

References

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State (theology)

In Christianity, the term state is used in various senses by theologians and spiritual writers.

The word is used in the classification of the degrees or stages of Christian perfection, or the advancement of souls in the supernatural life of grace during their sojourn in the world. This has reference to the practice of all the virtues, both theological virtues and moral virtues, and to all their acts both external and internal. It includes two elements, namely a believer's own efforts and the grace of God assisting the believer.

Division of states

Most of this article is written from the viewpoint of the Catholic Church and is derived from the Catholic Encyclopedia, which "proposes to give its readers full and authoritative information on the entire cycle of Catholic interests, action and doctrine". This article takes up the latter of the senses described in the introduction, according to the various classes of souls who aspire to perfection in this life. The Catholic Church Fathers and theologians distinguish three stages or states of perfection. These are the state of beginners, state of the progressing, and state of the perfect. These states are also designated "ways" because they are the ways in which God guides souls to Himself.

Trimming (computer programming)

In computer programming, trimming (trim) or stripping (strip) is a string manipulation in which leading and trailing whitespace is removed from a string.

For example, the string (enclosed by apostrophes)

would be changed, after trimming, to

Variants

Definition of whitespace

The characters which are considered whitespace varies between programming languages and implementations. For example, C traditionally only counts space, tab, line feed, and carriage return characters, while languages which support Unicode typically include all Unicode space characters. Some implementations also include ASCII control codes (non-printing characters) along with whitespace characters.

Java's trim method considers ASCII spaces and control codes as whitespace, contrasting with the Java isWhitespace() method, which recognizes all Unicode space characters.

Delphi's Trim function considers characters U+0000 (NULL) through U+0020 (SPACE) to be whitespace.

Usage

Following are examples of trimming a string using several programming languages. All of the implementations shown return a new string and do not alter the original variable.

Strip (comics)

Strip was a short-lived comics anthology published by Marvel UK in 1990. It ran for 20 issues (February - November 1990) and featured work by many British comics creators, including Alan Grant, Ian Gibson, Pat Mills, Kevin O'Neill, Si Spencer and John Wagner. Strips include Marshal Law by Pat Mills and Kev O'Neill and Grimtoad by Grant, Wagner and Gibson.

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