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H ow Does Gold Finger Electronics Utilize Polyimide Tape in High-Temperature Applications? |https://www.lvmeikapton.com/

Source: | Author:Koko Chan | Published time: 2025-05-09 | 42 Views | Share:

Gold finger electronics demand precision materials capable of withstanding extreme thermal cycling up to 300°C. Polyimide tapes likelvmeikapton insulating electrical tapehave become indispensable due to their unique combination of dielectric strength (≥5 kV/mm) and thermal stability.

Technical Specifications

| Property | Kapton HN Tape | Competitor X |

|------------------------|----------------|--------------|

| Continuous Temp Range | -269°C to 400°C| -50°C to 260°C|

| Tensile Strength | 231 MPa | 180 MPa |

| Dielectric Constant | 3.4 @ 1 kHz | 4.2 @ 1 kHz |

Key Applications

1. Flexible Circuit Protection

Brown circuit board high temperature tapeprevents copper trace oxidation during reflow soldering processes. TheSelf-adhesive back blocking spray paint tapevariant enables temporary masking with 0.05mm thickness precision.

2. Motor Insulation

EV manufacturers employPI material high temperature resistant 300 tapefor slot lining applications, achieving Class H insulation (180°C rating) with 50% space savings versus traditional mica solutions.

Case Study: Satellite Assembly

Lockheed Martin's 2023 Jupiter probe utilizedStrong adhesion and blocking high temperature tapein its power distribution unit. The tape maintained adhesion through:

· 15 thermal cycles (-190°C to +125°C)

· 98% vacuum exposure

· 500 MeV proton radiation

Selection Guide

When choosing betweenAdhesive PET material high temperature tapeand silicone-based alternatives, consider:

· Adhesion strength (>20 N/25mm required for SMT stencil masking)

· Outgassing levels (<1% TML meets NASA ASTM E595)

· Chemical resistance (withstands flux cleaners and IPA)