Enhanced TDS
Knowde-enriched technical product data sheet
Identification & Functionality
- Chemical Family
- Polymer Name
- Technologies
- Product Families
Features & Benefits
- Labeling Claims
- Materials Features
- Product Features
- High temperature
- Esd additives for static dissipation
- Great dimensional stability for extreme applications
Applications & Uses
- Markets
- Applications
- Plastics & Elastomers End Uses
- Product Applications
IC Device Testing Fixtures
A test fixture manufacturer recently began using Semitron ESd 520HR that combines electrostatic dissipation (ESD) and high mechanical strength, to make integrated circuit test heads. The high mechanical strength of Semitron® ESd 520HR results in longer useful life of the test heads and, thus, greater units (tested) per hour.
Semitron ESd 520HR is the first product to reliably meet all physical performance needs for test nests, sockets and contactors, combined with ESd performance. It is both ESd (surface resistivity of 1010 to 1012 ohms/square) and has sufficient resistance to minimize the risk of 'leakage' (cross-talk). Also significant is the ability of Semitron ESd 520HR to retain its surface resistivity at electrical forces greater than 100 volts.
Properties
Regulatory & Compliance
- Certifications & Compliance
- Chemical Inventories
Technical Details & Test Data
- Engineering Notes
It is important to know how applied voltage affects the resistance of a material. Some materials exhibit high resistance at low voltages, but when subjected to harsher conditions, they can fall. This is due to dielectric breakdown and is irreversible. This chart illustrates the effect of sequential applications of 100 through 1,000 volts, then a return to 100 volts to determine the hysteresis. Since static electricity can be several thousand volts, consistent performance across the voltage range must be considered.
Some materials are very inconsistent and vary on the "grain" of machining. One pair of lines illustrate the typical variation from side to side (A to B) of the same sample. This example demonstrates the need for consistent behavior in service.