Inclined Grinding Rollers for Resin Layer Uniformity
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Solution Overview
Problem
Existing substrate grinding technologies face challenges in achieving stable and uniform grinding of resin layers due to misalignment of grinding rollers, leading to uneven grinding and reduced production yield.
Innovation Solution
The substrate surface grinding apparatus features grinding rollers with rotational axes inclined symmetrically with respect to a virtual line perpendicular to the substrate transfer direction, ensuring stable and even grinding by correcting the substrate's moving direction and applying forces in oblique directions to facilitate uniform thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If grinding rollers are arranged with parallel rotational axes, then the device structure is simple, but the grinding uniformity and stability deteriorate
Solution Approach 1:
The patent applies asymmetry by arranging the rotational axes of adjacent grinding rollers to be inclined relative to each other rather than parallel. Specifically, the rotational axes are disposed at an angle of 5-15 degrees relative to each other, creating an asymmetric configuration that enables the leading end of each roller to contact the substrate first. This asymmetric arrangement prevents simultaneous contact of all rollers with the substrate, thereby eliminating sagging and wrinkles while improving grinding uniformity.
2Productivity
If multiple grinding rollers are used to increase productivity, then the grinding efficiency improves, but the alignment stability deteriorates
Solution Approach 1:
The inclined arrangement of rotational axes creates an asymmetric configuration where rollers contact the substrate sequentially rather than simultaneously. This asymmetry in the multi-roller system ensures that each roller maintains stable contact in a controlled sequence, preventing the alignment instability that would otherwise occur when multiple rollers are used together.
3Productivity
If grinding rollers contact the substrate simultaneously, then the grinding process is efficient, but substrate deformation occurs
Solution Approach 1:
The inclined arrangement of rotational axes implements preliminary action by ensuring that the leading ends of the grinding rollers contact the substrate first, before the trailing ends. This sequential contact approach allows the substrate to be gradually engaged by each roller in a controlled manner, preventing sudden deformation that would occur with simultaneous contact, while still maintaining efficient grinding throughput.
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 configuration stabilizes and evenly grinds the resin layer, preventing sagging and wrinkles, and enhances grinding performance by ensuring uniform thickness and improved production yield.
Implementation Method 1
a plurality of grinding rollers configured to grind a surface of a substrate
Data Source
AI summary
A substrate surface grinding apparatus includes: a grinding device including a plurality of grinding rollers configured to grind a surface of a substrate; and a substrate support member configured to support the substrate, wherein rotational axes of the grinding rollers are disposed to be inclined to rotational axes of adjacent grinding rollers.