Piezoelectric Body Formation Temperature Control for Liquid Discharge Head
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional methods for manufacturing liquid discharge heads with piezoelectric bodies face challenges in ensuring sufficient vibration without warping the substrate, leading to variations in nozzle shape and discharge characteristics.
Innovation Solution
A method of manufacturing a liquid discharge head involving the formation of a piezoelectric body on a substrate at a controlled temperature of 450°C to 600°C to prevent warping, followed by forming nozzle orifices, which ensures consistent discharge characteristics by maintaining substrate stability during the process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the piezoelectric body is formed at high temperature to increase piezoelectric multiplier and obtain large displacement, then vibration is ensured, but the substrate becomes warped causing variation in nozzle shape and discharge characteristics
Solution Approach 1:
The patent applies parameter changes by optimizing the formation temperature of the piezoelectric body to a specific range (450-600°C) rather than using excessively high temperatures. This temperature parameter optimization allows achieving sufficient piezoelectric multiplier and vibration while preventing substrate warpage, thus resolving the contradiction between vibration strength and nozzle shape consistency.
2Reliability
If conventional high temperature manufacturing method is used to ensure sufficient vibration, then piezoelectric multiplier increases, but substrate warpage occurs leading to discharge characteristic variations
Solution Approach 1:
The patent changes the temperature parameter from conventional high temperature to a controlled range of 450-600°C for piezoelectric body formation. This parameter modification enables achieving reliable vibration performance while maintaining discharge characteristic uniformity across all nozzles, eliminating the trade-off between reliability and precision.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach effectively restrains variations in discharge characteristics such as droplet amount, speed, and landing position accuracy, enhancing the quality of the image produced by the liquid discharge head.
Implementation Method 1
a liquid discharge head that vibrates a nozzle plate having a substrate and a piezoelectric body to discharge liquid
Data Source
Figure 1~2C
Figure 3A~3C
Figure 4A~4C
AI summary
There is provided a method of manufacturing a liquid discharge head (100) to vibrate a nozzle plate (1) including a substrate (81) and a piezoelectric body (82) to discharge liquid. The method includes forming the piezoelectric body (82) on the substrate (81) at 450°C to 600°C and forming a nozzle orifice (4) penetrating through the substrate (81) and the piezoelectric body (82).