For semiconductor equipment that needs cushioning and an ESD path at the same contact point, Lixing’s anti-static silicone pad lists an ohm value of 50 ± 10 Ω, has no adhesive backing listed in the catalog (ask us if your fixture needs one), and comes in black at 3.0 mm thickness. At 30 Shore A the pad deforms under a docking impact, which lengthens the stopping distance and lowers the average force. Before sampling, check the mass and speed of the moving part, the compression space available, and whether the pad surface is actually tied to ground.
A Soft Stop Spreads the Impact Over a Longer Distance
Each time a pick-and-place module or fixture docks, a metal-to-metal stop sends the impact straight into the part and the mechanism. The Antistatic Silicone Pad is rated 30 Shore A (catalog tolerance 30 ± 5). Its surface deforms first, so the moving part travels a little further before it stops, and the same kinetic energy is absorbed over a longer stopping distance.
Tie It to Ground and Static Charge Has Somewhere to Go
The catalog lists an ohm value of 50 ± 10 Ω. Once the pad surface is connected to an equipment ground point, charge on a contacting part can flow through the pad to ground. That value is low, so charge leaves quickly; if your parts are sensitive to discharge rate, confirm the grounding path and any current-limiting design against your plant’s ESD control program.
Buyers searching for an ESD protection silicone sheet often compare resistance first. The product page does not state the measurement method behind the ohm value, so confirm that test conditions match before comparing it with another supplier’s figure.
Repeated Docking Without Tearing or Losing Shape
A docking stop takes impacts all day, and the pad’s mechanical strength decides how often it needs replacing. The catalog lists:
- Tensile strength ≥ 6 MPa and elongation ≥ 200%
- Tear strength (Tear Strength B) ≥ 20 N/mm
- Tensile set ≤ 8%
These are tensile and tear figures. Long-term recovery under compression still has to be observed on the actual equipment.
A 3.0 mm Sheet You Can Cut to the Shape Your Equipment Needs
The black 3.0 mm sheet is suited to die-cutting into pads, liners or gaskets sized for a docking stop or fixture seat, and its compliance entry reads RoHS (Pass). The full table of thickness, hardness and ohm value is on the Antistatic Silicone Pad product page.
Where It Fits in the Equipment
The official product page lists four application areas:
- Cushioning materials for semiconductor manufacturing equipment
- Assembly pads for precision electronic products
- Consumables for printed circuit board (PCB) production fixtures
- Protective lining for automated conveyor systems
Inside a tool, an anti-static silicone rubber pad suits spots that see both impact and contact discharge, such as the docking stop of a moving part, the surface where a fixture seats a component, and the section of a conveyor where parts land.
Why It Works: Estimating Average Stopping Force
The cushioning effect can be framed with an estimate derived from the work-energy theorem in OpenStax University Physics Volume 1:
F_avg = m × v² / (2 × d)
F_avg is the average force during the stop (N), m is the mass of the moving part (kg), v is its speed at the moment of contact (m/s), and d is the distance the pad actually compresses while stopping it (m). The kinetic energy ½ m v² is absorbed over d, so for the same mass and speed, doubling the stopping distance roughly halves the average force.
Use it to compare trends for a single impact, treating deceleration as a constant force. Silicone is viscoelastic, so the peak force is higher than the average; d can never equal the full 3.0 mm thickness, and rebound energy is left out. The catalog gives no dynamic impact or compression set data, so the estimate is not a product specification and must be confirmed by measurement on the equipment.
What to Prepare Before Requesting a Quote
- Mass of the moving part, contact speed and docking frequency
- Available mounting space and allowable compression
- Pad shape, size, quantity and ground point location
- Whether you need an adhesive backing or another color (the catalog currently lists black only)
For resistance checks and order specifications, see 5 specs to confirm when ordering a custom ESD conductive silicone sheet. If your question is soft conformability in assembly, read soft-conforming antistatic silicone pads in precision assembly. This article covers equipment cushioning only.
Conclusion
Where semiconductor equipment needs to manage impact and static at the same contact point, the black 3.0 mm, 30 Shore A, 50 ± 10 Ω Antistatic Silicone Pad is worth sampling. Send your equipment conditions to Lixing to request samples or a specification consultation at yw@zh-lx.com.
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