Temporary bonding and low-stress debonding for thin wafers
EV Group · Process equipment and thermal control
- Purpose
- Thin and reconstituted wafers need mechanical support during thinning, backside processing and transfer to manage warpage and breakage risk.
- Technical approach
- Temporarily bonds the device wafer to a carrier, then releases, cleans and transfers it after processing. Thermal slide-off, UV/IR laser and low-temperature routes depend on the selected material stack.
- Scope of use
- Supports thin-wafer flows for 2.5D/3D IC, FoWLP, power and compound semiconductors. UV and IR routes have different carrier/release-layer conditions and must fit the process thermal budget.
- Limitations and open questions
These evaluation considerations are compiled by BLNKK from public information. They are not supplier guarantees or a mandatory submission checklist.
Scope and limitationsDebonding routes are not interchangeable across carriers or adhesive stacks and do not guarantee a warpage- or breakage-free flow. Validate conditions against configuration, materials and downstream needs.
What to prepareBring wafer size, target thickness, topography/warpage, carrier and bonding materials, downstream temperatures and chemicals, plus cleaning and transfer acceptance criteria.
Confirm with the supplierConfirm material compatibility, release/separation conditions, residue cleaning and wafer output. Plan representative-wafer evaluation of breakage, warpage, TTV and cycle time across the full flow.
- Public evidence
- The official page and 2025 brochure document support, debonding and cleaning/transfer modules. UV requires a transparent carrier; IR LayerRelease uses silicon with an inorganic release layer.
Supporting references
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BLNKK organizes information from public sources. A company profile does not imply a documented solution. Applicability still needs confirmation against your samples and engineering conditions.