Top-down manufacturing - Revision history

Apm: added delineation section

2022-09-18T08:23:30Z

added delineation section

← Older revision		Revision as of 10:23, 18 September 2022
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	There seem to be no natural targeted top down manufacturing processes. <br>		There seem to be no natural targeted top down manufacturing processes. <br>
	Accidental macroscopic structure formation maybe like in sun rays melting snow in patterns and geologic processes maybe has some similarity.But these are not aiming at an encoded target structure.		Accidental macroscopic structure formation maybe like in sun rays melting snow in patterns and geologic processes maybe has some similarity.But these are not aiming at an encoded target structure.

			== Delineation ==

			[[Top down positional assembly]] does exclude things like photo-lithography.

	== Related ==		== Related ==

Apm: /* Related */ added MEMS

2021-07-06T14:13:38Z

Related: added MEMS

← Older revision		Revision as of 16:13, 6 July 2021
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	* [[Bottom-up Top-down overlap]]		* [[Bottom-up Top-down overlap]]
	* [[Non atomically precise nanomanufacturing methods]]		* [[Non atomically precise nanomanufacturing methods]]
			* [[MEMS]]

Apm: /* Related / added Non atomically precise nanomanufacturing methods

2021-06-10T17:07:58Z

← Older revision		Revision as of 19:07, 10 June 2021
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	* Complementary: [[Bottom-up manufacturing]]		* Complementary: [[Bottom-up manufacturing]]
	* [[Bottom-up Top-down overlap]]		* [[Bottom-up Top-down overlap]]
			* [[Non atomically precise nanomanufacturing methods]]

Apm: added related section

2021-03-12T18:31:08Z

added related section

← Older revision		Revision as of 20:31, 12 March 2021
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	There seem to be no natural targeted top down manufacturing processes. <br>		There seem to be no natural targeted top down manufacturing processes. <br>
	Accidental macroscopic structure formation maybe like in sun rays melting snow in patterns and geologic processes maybe has some similarity.But these are not aiming at an encoded target structure.		Accidental macroscopic structure formation maybe like in sun rays melting snow in patterns and geologic processes maybe has some similarity.But these are not aiming at an encoded target structure.

			== Related ==

			* Complementary: [[Bottom-up manufacturing]]
			* [[Bottom-up Top-down overlap]]

Apm: /* downward size limit */

2021-03-12T18:08:23Z

downward size limit

← Older revision		Revision as of 20:08, 12 March 2021
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	With masks, optics, various ways of etching and more. <br>		With masks, optics, various ways of etching and more. <br>

	== ~~downward~~ size limit ==		== Downward size limit ==

	Where as with bottom up the technological limit is upwards, <br>		Where as with bottom up the technological limit is upwards, <br>

Apm: basic version of the page

2021-03-12T18:08:08Z

basic version of the page

New page

Complementary: [[Bottom-up manufacturing]]

The prototypical example for top-down technology is the microchip manufacturing technology. 
Both in case of electrical chips and in case of mechanical chips (MEMS). 
With masks, optics, various ways of etching and more. 

== downward size limit ==

Where as with bottom up the technological limit is upwards, 
In the case of top down technology the technological size limit is downwards.

Reachable size-scales are less small for mechanical than for electrical chips. 
While electrical chips already reach far down the nanoscale this is only possible for electrical chips and
Record holding chips are specially manufactured for chip manufacturers often at truly jaw-dropping costs. 
This is nothing for quick turnaround trial and error experimentation.

== Nature ==

There seem to be no natural targeted top down manufacturing processes. 
Accidental macroscopic structure formation maybe like in sun rays melting snow in patterns and geologic processes maybe has some similarity.But these are not aiming at an encoded target structure.