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 tunnel barrier can be used as an injector of ballistic light holes to provide the dominant tunneling current.
English (United States)
This text was extracted from a PDF file.
100% of the total text.
Page 1 of 1
P Type Ballistic Hot Election Transfer Amplifier
A tunnel barrier can be used as an injector of ballistic light holes to provide
the dominant tunneling current.
When a tunnel barrier is 0.3eV high and ten nanometers thick, biased near
the onset of the Fowler-Nordheim regime, the tunneling probability of light holes
is greater than that of heavy holes by a factor of about 10e7. Even though the
supply function of light holes is approximately five percent of the total number of
holes, they are dominant and the practical current through the device is due to
light holes moving at high velocities.
Complementary type hot electron devices can be almost identical. Base
resistance at 77oK can be improved by modulation doping in the base using p-
type impurities in the aluminum gallium arsenide collector barrier of these
devices. Hole mobilities can reach 8,000 cm2/volt-sec at 77oK, leading to base
sheet resistances on the order of 500 ohms/square for a base width of 100-