05098503 is referenced by 34 patents and cites 9 patents.

A method of fabricating extended arrays of image reading or writing subunits and in particular a pagewidth thermal ink jet printhead from a plurality of discrete thermal ink jet printhead subunits is disclosed. Each thermal ink jet printhead subunit includes a heater plate subunit having a plurality of resistive elements on an upper surface thereof and a channel plate subunit having a plurality of channels corresponding in number and position to the resistive elements on a base surface thereof, the upper surface of the heater plate subunit being attached to the base surface of the channel plate subunit to define a thermal ink jet printhead subunit having a plurality of channels forming nozzles with a resistive element in communication with each channel. The method includes the steps of forming a precision alignment structure such as a notch with, for example, a precision dicing saw, on an upper surface of each channel plate subunit, placing the upper surface of each discrete thermal ink jet printhead subunit on an elongated alignment substrate having a plurality of corresponding alignment structures, and engaging the upper surface of each discrete thermal ink jet printhead subunit with one of the corresponding alignment structures on the alignment substrate. These steps are repeated with subsequent thermal ink jet printhead subunits until an extended array having the length of, for example, a pagewidth is formed. The array of thermal ink jet printhead subunits are then bonded to, for example, a base substrate to form an integral pagewidth printhead.

Title
Method of fabricating precision pagewidth assemblies of ink jet subunits
Application Number
7/517178
Publication Number
5098503
Application Date
May 1, 1990
Publication Date
March 24, 1992
Inventor
Donald J Drake
Rochester
NY, US
Agent
Oliff & Berridge
Assignee
Xerox Corporation
CT, US
IPC
B23P 19/00
B25B 11/02
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