Recorders – Electric recording – Electrochemical
Patent
1988-09-30
1989-11-28
Evans, Arthur G.
Recorders
Electric recording
Electrochemical
346160, G01D 1500
Patent
active
048840866
ABSTRACT:
A method of alignment of monolithic chips of arrays of light emitting diodes to form part of a print head, the method comprising placing microscopically visible alignment marks on each chip in predetermined positions relative to the diode array carried on the chip, positioning two chips adjacent to one another in desired relative positions, and viewing the two chips through a microscope having a graticule, whereby the alignment marks of the two chips are positioned on the cross wires of the graticule whereby the chips are aligned with their respective diode arrays in a correct spacing and orientation relative to one another.
REFERENCES:
patent: 4596995 (1986-06-01), Yamakawa et al.
patent: 4703334 (1987-10-01), Mochimara et al.
patent: 4724490 (1988-02-01), Tanioka
Chilton George A. A.
Cobb Alan J.
Hart Peter B.
Kirk Richard A.
Lee Peter R.
Evans Arthur G.
Plessey Overseas Limited
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