Ink jet printhead having a flat surface heater plate

Details Ink jet printhead having a flat surface heater plate Ink jet printhead having a flat surface heater plate

1994-06-06

1996-07-09

Lund, Valerie A.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 64, B41J 2335

Patent

active

055349013

ABSTRACT:
An improved ink jet printhead including a channel plate and a heater plate having an improved flatness top bonding surface. The heater plate includes a silicon wafer base, a first insulating layer formed on the wafer base, and at least an intermediate component sublayer formed over the first insulating layer. The heater plate also includes a second insulating layer formed over the at least intermediate component sublayer, and having a top bonding surface for bonding the: heater plate to the channel plate. To substantially improve flatness of the top bonding surface of the second insulating layer, the component sublayer includes active thin film layer patterns in circuit areas of the thin sublayer, and non-active relief compensating patterns in non-circuit areas thereof. The non-active relief-compensating patterns each have a thickness substantially equal to the thickness of the active thin film patterns in the circuit areas of the sublayer.

REFERENCES:
patent: Re32572 (1988-01-01), Hawkins et al.
patent: 4638337 (1987-01-01), Torpey et al.
patent: 4847630 (1989-07-01), Bhaskar et al.
patent: 5010355 (1991-04-01), Hawkins et al.
patent: 5229785 (1993-07-01), Leban
patent: 5412412 (1995-05-01), Drake et al.
patent: 5450108 (1995-09-01), Drake et al.

Affiliated with

Also associated with

Rating

Ink jet printhead having a flat surface heater plate does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ink jet printhead having a flat surface heater plate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ink jet printhead having a flat surface heater plate will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1870516