About SNEC
SNEC PV+ES has been held annually in Shanghai since 2007. By its 18th edition in 2025, the exhibition had grown to 360,000 m² of floor space, with over 3,000 exhibitors from 95 countries. It is one of the world’s largest and most influential PV and energy storage shows — and once a year, it’s where most of the silicon and crystal processing industry gathers in one place.
Vimfun Will Be There
Join us in Shanghai this June.
- Dates: June 3 – 5, 2026
- Venue: National Exhibition and Convention Center (Shanghai), No. 333 Songze Avenue, Qingpu District, Shanghai, China
Three Workflow Areas We Want to Discuss
We’re using this show to have deeper technical conversations across three connected stages of the silicon and crystal processing chain. Anyone who’s worked in wafer processing knows these stages don’t operate in isolation — a parameter shift in growth shows up in slicing yield, and a slicing issue surfaces in the grinding step.
1. Crystal Growth Furnaces
The growth stage determines ingot purity, dislocation density, and defect distribution. Hot zone design, seed positioning, pull rate curves, melt convection — any deviation here propagates into slicing loss and downstream yield problems, often invisible until later inspection.
At Vimfun, this is not where we’re strongest, and we won’t pretend otherwise. What we’d like to do at this stage of the conversation is listen — to hear what real problems customers are running into on the growth side, and explore where Vimfun can support better on process handoff and equipment compatibility downstream.
2. Wafer Slicing (Our Home Turf)
This is where Vimfun has spent the past decade. Our endless (closed-loop) diamond wire slicing technology works differently from traditional reciprocating multi-wire saws:
- The wire is a closed loop, running unidirectionally at up to 85 m/s (traditional multi-wire saws typically run around 20 m/s)
- Kerf loss can go as narrow as 0.35 mm, which matters when you’re slicing expensive crystal material
- Cutting tolerance: ±0,03 mm
- For monocrystalline silicon, recommended wire diameter is 0.42 – 0.5 mm — this is a mature application
We have a full machine matrix for different materials and scales: SG20 series for lab-scale R&D; SH60-60 and SV60-60 for large graphite and ceramic blocks; SH60-R, SH100-R, SH150-R for quartz, sapphire, and other rotary applications.
Our equipment is in operation at Edmund Optics, Coherent, SGL Carbon, Mersen Graphite, and similar customers across 20+ countries — US, Germany, France, Korea, Singapore, India, and others. At SNEC, we’ll bring sample machines and slicing samples to the booth, so you can see the cut surface and measure the precision yourself.
3. Grinding & Surface Preparation
After slicing comes grinding, lapping, and polishing. This stage drives TTV (total thickness variation), bow/warp, and subsurface damage. Get this wrong, and the precision you fought for in slicing disappears.
We’re actively exploring more efficient grinding workflow solutions with process partners. If you have requirements or experience in grinding/lapping equipment and process — come talk to us at the booth. We’re open to partnership and integration conversations.
What’s Worth Coming to the Booth For
It makes sense to stop by Vimfun if you’re:
- Stuck on a slicing yield problem and not sure whether it’s a slicing issue or an upstream/downstream handoff issue
- Evaluating diamond wire slicing as a replacement for traditional multi-wire technology
- Working with specialty materials (graphite, sapphire, ceramics, magnetic materials, composites) and need a customized slicing solution
- Building a lab or pilot line where volume doesn’t justify a full multi-wire setup
- Operating existing Vimfun equipment and want to discuss upgrades, retrofits, or new capabilities
Schedule a Meeting in Advance
To avoid waiting and to make sure we have time for a real conversation, please let us know your travel plans in advance. We’ll have engineers and commercial team members ready, and we can also help you apply for the official SNEC visitor pass.
- E-mail : levy@endlesswiresaw.com
See you in Shanghai in June.
