FLUID-JET PRINTHEAD AND METHOD OF FABRICATING A FLUID-JET PRINTHEAD

• Main Authors: XU GENBAO, CHEN ZHIZANG, JOHNSTONE MARK ALAN, WHITLOCK JOHN P
• Format: Patent
• Language: English; Korean
• Published: 26.06.2002
• Edition: 7
• Subjects: CORRECTION OF TYPOGRAPHICAL ERRORS; i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; LINING MACHINES; PERFORMING OPERATIONS; PRINTING; SELECTIVE PRINTING MECHANISMS; STAMPS; TRANSPORTING; TYPEWRITERS

PURPOSE: A fluid-jet printhead and its fabrication method are provided to the deflection of turn-on energy by precisely controlling the size and the flakiness of a resistive layer and to easily control the size of drops by reducing the deflection of resistors. CONSTITUTION: A fluid-jet printhead(200) has a substrate(10) having at least one layer defining a fluid chamber(100) for ejecting fluid. The printhead also includes a resistive layer(30) disposed between the fluid chamber and the substrate wherein the fluid chamber has a smooth planer surface between the fluid chamber and the substrate. The printhead has a conductive layer(40) disposed between the resistive layer and the substrate wherein the conductive layer and the resistive layer are in direct parallel contact. The conductive layer forms at least one void creating a planar resistor in the resistive layer. The planar resistor is aligned with the fluid chamber. Thereby, the injection efficiency is increased. 액체-분사 프린트헤드(200)(fluid-jet printhead)는 액체를 분사하는 액체 챔버(100)(fluid chamber)를 규정하는 적어도 하나의 층(82)을 갖는 기판(10)을 포함한다. 또한, 프린트헤드(200)는 액체 챔버(100)와 기판(10) 사이에 배치된 저항층(30)을 포함하며, 액체 챔버(100)는 액체 챔버(100)와 기판(10) 사이에 매끄러운 평탄한 표면을 갖는다. 프린트헤드(200)는 저항층(30)과 기판(10) 사이에 배치된 전도층(40)을 포함하며, 전도층(40)과 저항층(30)은 직접 평행 접촉을 한다. 전도층(40)은 저항층(40) 안에 평면 저항(46)을 생성하는 적어도 하나의 공극(void)을 형성한다. 평면 저항(46)은 액체 챔버(100)와 일렬로 배치된다.