Some of the etchings
achieve the size of paintings, while some of the paintings are smaller than the largest etchings
Unfortunately, it is impossible to closely define etching
times, as the correct etch time and depth must be determined empirically and will vary with examination magnification.
Low-density reactive ion etching
(RIE), or diode plasma etching
, adapted from semiconductor processing is being used by some researchers to meet MEMS application requirements.
Doan and Sailor also discovered that the etching
recreated the fine lines used as shading in the dollar bill.
Figure 5a shows a specimen with a fully ferritic matrix after etching
with 4% nital.
By exposing silicon wafers to oxygen and then heating them before etching
, these electrical engineers changed the range of colors emitted, they report in the Feb.
Hundreds of other chemical reactions occur at the same time, complicating the etching
process can turn a cheap lens into a high-performance optical element.
We selected Aviza for our deep silicon etching
because they were able to demonstrate the high aspect ratio features to meet our manufacturing requirements, while maintaining superior critical dimension (CD) control and uniformity.
The AdvantEdge Metal system helps customers extend aluminum interconnect technology below today's 90nm dimensions, with dramatically improved etching
precision and higher productivity," said Tom St.
With a value of just under US$400,000, this tool introduces the Advanced Control System (ACS) architecture to a facility with an installed base of other Tegal tools used for etching
silicon devices in the production of anti-locking brake sensors.
For gate etching
, the AdvantEdge system features an optional integrated Transforma(TM) controller that provides superior repeatability and run-to-run process control, while the EyeD(R) PSM (Process State Monitor) technology enables real-time monitoring of chamber conditions.