Track width

The increase of bit densities can easily be demonstrated by showing the bit area ha in llm ), which is determined by the bit cell length bl in fim) x track width(tti in //m), for various (commercial) recording systems. In the case of video Hi8 pal (long play) the... 

Deposition and patterning of the bottom magnetic pole follow. The pole is usually electroplated with a through-photoresist window frame mask to a thickness level of 2 to 4 fim. Note that whereas the magnetic pole is made into a pancake shape to increase the head efficiency, it is the narrow p>ole tip s dimension that determines the narrow track width. As stated, the widely used Co-based alloy magnetic poles are elec-trodeposited (wet process). Nanocrystalline FeN-based alloys are sputter-deposited in a vacuum chamber (dry process). 

To understand the need for standards, the easiest method is to envision a world without them. In that world, riders change trains at every national border or even city border because different railroad track widths require different railroad cars and engines. Crossing the border is difficult if you are not from one of the two countries because there is not standard format for identification. Manufacturers make dozens or hundreds of versions of each product because of different electrical or mechanical requirements and must charge for the differences and for huge inventories. Credit cards can only be used for a single chain of stores and banks charge a lot of money to process them. And there is no telephone service across borders. The Internet is both... 

Here, AR/R is the maximum MR signal of the spin valve sensor (reaching today 15 to 20% in specular spin valves), Rsq is the sensor square resistance (15 to 20 Q/sq), W the track width of the read element (distance between leads), h is the sensor height, / the sense current, f is the angle between the... 

Table 1. Read head parameters used for a 106 Gb/in2 demonstration. Here w corresponds to the active read track width, h is the sensor height, G the shield to shield separation.

Minimum track width mm Maximum permissible continuous current for T class... A ... 

Printed board wiring shows a rectangular-shaped conductor cross-section. With layer thickness d and track width w, the cross-sectional area is w d and the surface of a track with length l follows with ... 

State-of-the-art piezo-based drop-on-demand printers are produced by companies such as Xaar (UK), Konica Minolta (Japan), and Fujifilm Dimatix (US). These print heads have around 180 to 360 nozzles per inch and are designed to print at basic resolutions of up to 360 dpi with drop volumes down to about 40 pi (picoliter). This type of print resolution gives features equivalent to approximately 100 /xm track width on PET or PI substrates. However, Xaar s new generation "gray scale" heads allow variable drop volumes down to around 3 pi to give printed features of around 50 /xm or less. 

The length of the slit (track-width) is adapted to the width of the sample spot to be measured. If the samples have been applied as lines, the length of the slit is chosen according to the part of the line-shaped chromatogram which is to be measured. 

The damage caused in an explosive by fission fragments was investigated by Bowden and Montagu-Pollock and their coworkers [44-49], Disorder was produced in the lattice, together with holes and tunnels having track widths of 100-120 2 It was concluded that even the intersection of two tracks did not produce initiation in azides, while the intersection of three or more tracks within 10 sec was an unlikely event. 

As the head track width decreases, remanent magnetization of the main pole tip is likely to occur because of stress-induced anisotropy and increased shape anisotropy in the normal direction to the ABS. The field from this remanent magnetization can... 

The plowing force, therefore, is proportional to the third power of the track width. Experiments with a steel spade plowing through indium have confirmed this relation [22]. 

Bowden [120] points out that the track widths in explosive crystals are greater than is usually found in inert materials, which indicates that some additional energy could have come from partial decomposition of the material. However, the heat liberated is not enough to produce explosion even when two tracks intersect. The probability of three or more tracks intersecting within 10 sec is small unless the fission-fragment density is high. 

Ruigrok, J. J. M., Sillen, C. W. M. P. van Rijn, L. R. M. (1990). High performance metal-in-gap heads with very small track widths. Journal of Magnetism and Magnetic Materials, 83, 41-4. 

In physical markets, geographical distance and political boundaries hinder the free movement of goods and people. Similarly, closed proprietary networks separate virtual markets artificially by establishing barriers to interoperability. This is equivalent to having a railway system with different track widths so that several sets of identical rail cars must be maintained and passengers must be transferred at all exchange points. 

Track width (trm) Aluminium Titanium Titanium Nitride... 

The results should all be the same per material, but both Ti and Al show relative large differences between the different track widths. Titanium nitride is showing linear results and has a relatively low TCR, which is favourable for a lot of applications. Aluminium changes its resistance with an increase of the current, probably due to self-heating. This is as shown in Fig. 14. The notable increase in resistance of Al is probably due to self-heating, because the current is much higher than supplied to Ti and TiN and each measurement took more time. 

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