The following operators can be used to better focus your queries.
( ) , AND, OR, NOT, W/#
? single char wildcard, not at start
* multi char wildcard, not at start
(Cat? OR feline) AND NOT dog?
Cat? W/5 behavior
(Cat? OR feline) AND traits
Cat AND charact*
This guide provides a more detailed description of the syntax that is supported along with examples.
This search box also supports the look-up of an IP.com Digital Signature (also referred to as Fingerprint); enter the 72-, 48-, or 32-character code to retrieve details of the associated file or submission.
Concept Search - What can I type?
For a concept search, you can enter phrases, sentences, or full paragraphs in English. For example, copy and paste the abstract of a patent application or paragraphs from an article.
Concept search eliminates the need for complex Boolean syntax to inform retrieval. Our Semantic Gist engine uses advanced cognitive semantic analysis to extract the meaning of data. This reduces the chances of missing valuable information, that may result from traditional keyword searching.
A capping layer is described for a magneto-resistive sensor which comprises b-tantalum.
English (United States)
This text was extracted from a PDF file.
100% of the total text.
Page 1 of 1
Capping Layer for Magneto-Resistive Sensor
A capping layer is described for a magneto-resistive sensor which comprises
Some of the materials used in the fabrication of magneto-resistive sensors
are somewhat sensitive to oxidation and corrosion during processing. These
materials can result in degradation and non-uniformity of performance of the
An improved design has deposited on the sensor a "capping" layer of a high
resistance, corrosion resistant material to avoid these problems. One suitable
material is b-phase tantalum which can be sputter-deposited. The b-tantalum
has a resistivity of about 200 micro-ohm-cm so that almost no shunting of the
sensor occurs. The b-tantalum is highly resistant to corrosion and protects the
sensor from chemical attack. The tantalum also provides a surface from which
the photoresist used in processing can be easily stripped.