Method for producing substrates with passages

Details Method for producing substrates with passages Method for producing substrates with passages

1993-06-15

1995-01-03

Powell, William

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156656, 156902, 156668, B44C 122, B29C 3700, C23F 100

Patent

active

053783140

ABSTRACT:
A method for producing aligned passages through substrate materials, in which the projection of the inlet and outlet openings does not coincide, uses displaced application of etching windows on opposite sides and corresponding pronounced under-etching of these windows. By applying displaced etching windows on both sides of the substrate and through-etching the substrate through these windows, `oblique` passages are obtained through the substrate. By a suitable location of the windows it is also possible to produce branched passages with more than one outlet opening.

REFERENCES:
patent: 3354543 (1967-11-01), Lawrence et al.
patent: 4118523 (1978-10-01), Chorles et al.
patent: 4472238 (1984-09-01), Johnson
patent: 5205902 (1993-04-01), Horton et al.

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