* to experiment with the subtractive process
primary subtractive process
and secondary subtractive process
That is, apophatic methods are grounded in the premise that structural change is primarily a subtractive process
, while still recognizing the importance of constructivist (additive) processes.
(19) In key language, the court noted that digital enhancement "is a subtractive process
in which elements are removed or reduced; nothing is added." (20) The court further found that digital enhancement is "[in] contrast with 'image restoration,' a process in which things that are not there are added based upon preconceived ideas about what the end result should look like, 'image enhancement' merely makes what is there more usable." (21)
The additive and subtractive process
of sculpting was discussed at this point.
Laser structuring in MID production is generally taken to be a subtractive process
comprising process chains, with a usual sequence of injection-molding, etching/nucleation, full-surface metallization, resist coating, resist laser structuring, etching and stripping.
Conventional moldmaking is a subtractive process
that starts with a block of metal and removes material until what remains is the desired shape.
Tens of thousands of different products are sold by a printing ink company since many of the colours required by the printer cannot be achieved using the subtractive process
colour principle (yellow magenta cyan and black as opposed to the red, green and blue additive theory used in television screens).
If they combined by a subtractive process
, as occurs when absorption colorants are mixed, green would have been formed.
Multilayer printed circuit board (PCB) manufacturing is today almost universally a subtractive process
that involves working with basic materials, including copper foil and laminate cores.
The full line of Endoskeleton devices features Titan Spine's proprietary implant surface technology, consisting of a unique combination of roughened topographies at the macro, micro, and cellular levels created by a subtractive process
. The combination of surface topographies is designed to create an optimal host-bone response and actively participate in the fusion process by promoting the up-regulation of osteogenic and angiogenic factors necessary for bone growth, encouraging natural production of bone morphogenetic proteins, and "creating the potential for a faster and more robust fusion," the company claims.
Since chemically ablating the unwanted precious metal surrounding the conductors is not an option, the only other alternatives (staying with a subtractive process
) would be either laser ablating or mechanical milling.