Thermal Interface Pad Delivery Roll Segmentation

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Solution Overview

Problem

Thermal interface pads on delivery rolls melt together in warm conditions, rendering them unusable and causing logistical issues during transportation and application.

Innovation Solution

A delivery roll design featuring a carrier tape with an adhesive layer, where thermal interface components are spaced apart and protected by top and bottom liners, allowing for efficient handling and application, and enabling the inclusion of pads with different shapes and sizes for specific component needs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If thermal interface pads are placed close together on a delivery roll for efficient space utilization, then the quantity of pads per roll increases, but the pads may melt together in warm conditions rendering the roll unusable

Engineering Contradiction:
Improvequantity of pads per rollVSAvoidpad integrity during transport
Core Design Contradiction:
Quantity of substanceVSReliability

Solution Approach 1:

The delivery roll is divided into individual pad compartments separated by spacer members. Each pad is isolated in its own segment, preventing contact with adjacent pads even when the material becomes soft from heat exposure during transport or storage.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Spacer members are introduced as intermediary elements between adjacent thermal interface pads. These spacers act as physical barriers that maintain separation between pads, preventing them from melting together while allowing the pads to be stored in close proximity for efficient space utilization.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If thermal interface pads are covered with liners during transport, then the pads are protected from contamination and damage, but the application process becomes more complex requiring additional removal steps

Engineering Contradiction:
Improvepad protection during transportVSAvoidapplication process complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The bottom liner is selectively removed or left attached depending on the application needs. The design allows the bottom liner to be taken off during application if desired, while the top liner remains as a protective covering that can be peeled back to expose the adhesive surface.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The pads are pre-prepared with liners attached during manufacturing, providing immediate protection during transport and storage. The liner configuration is designed to allow easy removal or peeling during application, balancing protection with ease of use.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If the adhesive layer is made highly adhesive to securely hold pads on the carrier tape, then the pads remain stable during transport, but the pads become difficult to remove from the tape during application

Engineering Contradiction:
Improvepad stability on carrier tapeVSAvoidease of pad removal from tape
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The adhesive layer is applied in specific locations and with specific properties to achieve different performance characteristics in different areas. The adhesive is strong enough to hold pads securely during transport but can be selectively overcome during application by pulling on the liner or using a picking tool.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The adhesive is pre-applied to the carrier tape in controlled patterns before pads are attached. This allows optimization of adhesive strength and distribution to balance secure holding during transport with ease of removal during application.

Inventive Principle:
Principle #10Preliminary action

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

Prevents thermal interface pads from melting together, simplifies application by exposing one side of the pad without extra steps, and allows for efficient storage and retrieval of pads with varying shapes and sizes on a single roll, enhancing handling and thermal conductivity.

Implementation Method 1

the carrier tape supports the plurality of thermal interface components by the adhesive adhering to the bottom liner of each thermal interface component

Methodology Applied
Scientific EffectAdhesion: Adhesive

Implementation Method 2

a pad of thermal interface components (20) arranged in a spaced-apart manner... each thermal interface component comprises... a thermal interface pad (24) arranged therebetween

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentEP3522211B1Delivery roll and method for manufacturing thereof
Publication Date: 2020.09.30 NOLATO SILIKONTEKNIK AB
  • EP3522211B1 patent drawingFigure 1
  • EP3522211B1 patent drawingFigure 2
  • EP3522211B1 patent drawingFigure 3~4

AI summary

A delivery roll (1) for thermal interface components, the roll comprising a carrier tape (10), an adhesive layer (10a), and a plurality of thermal interface components (20), wherein the adhesive layer (10a) is arranged on a surface of the carrier tape (10); each thermal interface component (20) comprises a top liner (22), a bottom liner (26) and a thermal interface pad (24) arranged therebetween; the carrier tape (10) supports the plurality of thermal interface components (20) by the adhesive adhering to the bottom liner (26) of each thermal interface component (20); and the plurality of thermal interface components (20) is arranged in a spaced apart manner along the carrier tape (10). The invention also relates to a manufacturing method for a delivery roll.