Direct answer: XINKETCHING is a China-based precision metal etching manufacturer that can review and manufacture thin, flat metal components for foldable-phone and foldable-display assemblies. Suitable part families include titanium or stainless-steel support plates, perforated structures, precision meshes, shims, spacers, EMI/grounding parts and custom flat components with dense holes, slots or complex profiles. Final manufacturability depends on the drawing, material, thickness, feature size and tolerance.
Why foldable phones are creating new demand for precision titanium structures
Foldable-device engineering is moving toward thinner, lighter and stronger internal structures. In July 2026, Samsung introduced its Flex Titanium display structure using both a titanium-alloy film and a titanium plate. Samsung says the titanium plate sits beneath the display module and uses micro-patterned holes in the folding section to combine flexibility with structural support. This is exactly the kind of geometry that makes manufacturing-process selection important.
Apple’s first foldable iPhone, iPhone Duo, also confirms the broader shift toward titanium and more complex internal engineering. Apple states that iPhone Duo is crafted from Grade 5 titanium, uses a custom vapor chamber for thermal management, and incorporates a titanium plate at the bottom of the inner-display stack to further enhance durability. Apple does not state that XINKETCHING supplies any component, and it does not disclose photochemical etching as the manufacturing method for these parts. We cite the product only as evidence of the industry’s direction toward thinner, stronger and more thermally integrated foldable hardware.
OPPO provides a useful counterexample. The company says the Find N6 hinge casing and wing plates use Grade 5 titanium and are produced with a 3D printing process. Those are highly three-dimensional structural hinge parts, and they are generally not the type of component XINKETCHING would recommend for photochemical etching. Photo etching is strongest when the target part is primarily flat and made from metal sheet or foil.
Which foldable-phone parts are a good fit for photo chemical etching?
| Part family | Typical requirement | Etching fit |
|---|---|---|
| Display support / reinforcement plate | Thin sheet, repeated holes, slots, flexible zones | Strong candidate after DFM review |
| Precision perforated plate / metal mesh | Large number of small openings and repeatable pitch | Strong candidate |
| Shims and spacers | Thin, flat, burr-free profile | Strong candidate |
| EMI / grounding / shielding components | Complex perimeter, tabs, slots and apertures | Strong candidate |
| Flat spring or contact parts | Thin alloy, precise outline, low burr requirement | Possible, depending on material and forming needs |
| 3D hinge body / thick load-bearing hinge block | Deep 3D geometry and high structural load | Usually not an etching part; machining, MIM, forging or additive manufacturing may fit better |
Why photo etching is useful for thin titanium and stainless-steel structures
Photochemical machining removes metal selectively through a photoresist pattern and controlled chemical etching. Unlike stamping, it does not require hard tooling for every geometry. Unlike laser cutting, it does not create a thermal cutting zone. For thin sheet parts with many repeated micro-features, the entire pattern can be processed together rather than one hole at a time.
- No stamping burr: useful where a burr could interfere with bonding, stacking or assembly.
- No laser heat-affected zone: useful for thin metal where heat input or local distortion is undesirable.
- Low tooling cost: design revisions generally require a new phototool rather than a new stamping die.
- Complexity is comparatively inexpensive: hundreds or thousands of holes, slots and contours can be patterned in the same sheet.
- Suitable for prototype through production: especially useful during rapid design iteration before a geometry is frozen.
For a broader explanation of the process, see XINKETCHING’s photochemical machining guide and titanium chemical etching guide.
XINKETCHING manufacturing capability for foldable-electronics DFM review
| Materials | Titanium, stainless steel, copper, nickel and other etchable engineering metals; exact grade subject to review |
| Thickness range | Approximately 0.03–3.0 mm; 0.05–1.0 mm is common for many precision-etching jobs |
| Typical tolerance | Around ±0.04 mm where geometry and thickness permit; critical dimensions must be reviewed from the drawing |
| Feature guideline | As a practical starting point, minimum hole or slot size is preferably not smaller than material thickness; finer geometry requires specific DFM assessment |
| Processes | Through etching, half etching and double-sided alignment |
| Maximum sheet | Up to approximately 700 × 2000 mm for suitable material/process combinations |
| Prototype lead time | Typically about 5–7 days after drawing, material and DFM confirmation |
DFM: what matters most on a foldable-display metal drawing?
The word “precision” is not enough to decide whether a part can be etched. For a foldable-electronics drawing, the engineering review should focus on six things:
- Material and exact alloy: titanium grade, stainless-steel grade or another metal.
- Material thickness: feature capability and tolerance scale with sheet thickness.
- Minimum hole / slot width: extremely small openings may close or change dimension because etching removes material laterally as well as vertically.
- Critical pitch and positional tolerance: identify which dimensions control folding behavior, bonding or assembly.
- Half-etched areas: specify whether a recess, identification mark or controlled thin zone is required.
- Flatness and post-processing: forming, heat treatment, plating, passivation, cleaning or adhesive-bonding requirements can change the manufacturing route.
If you are still deciding between processes, XINKETCHING can compare the drawing against photo etching, laser cutting, stamping and machining instead of forcing the part into an unsuitable process.
Photo etching vs laser cutting vs stamping for foldable-phone thin metal
| Factor | Photo etching | Laser cutting | Stamping |
|---|---|---|---|
| Burr | No mechanical burr | May require edge-quality review | Burr direction/height must be controlled |
| Heat input | No thermal cutting zone | Localized heat input | No thermal cutting zone |
| Hard tooling | No hard die | No hard die | Usually required |
| Dense repeated holes | Highly efficient | Each feature is scanned/cut | Efficient after tooling is proven |
| Design changes | Fast phototool revision | Fast program revision | Can require die rework |
| Very high-volume simple geometry | Competitive depending on design | Often less attractive at huge volume | Often strongest after tooling amortization |
Frequently asked questions
Can XINKETCHING make a titanium support plate for a foldable display?
Potentially yes, if the component is primarily a thin, flat titanium part and the required holes, slots, pitch and tolerances are compatible with photochemical etching. Send the drawing for DFM review before choosing the process.
Can photo etching make micro-patterned holes in a folding zone?
Yes, dense repeated hole patterns are one of the strongest use cases for photochemical machining. However, the achievable opening size, pitch and tolerance depend on material grade and thickness. Samsung’s public Flex Titanium announcement confirms that micro-patterned holes are an important design concept in modern foldable-display titanium plates, but it does not identify the supplier or manufacturing process used for those parts.
Can you etch Grade 5 titanium?
XINKETCHING can review Grade 5 titanium drawings. Titanium etching requires different chemistry and process control from stainless steel, so the part geometry, thickness, surface requirement and tolerance must be assessed before quoting.
Is chemical etching suitable for the entire foldable-phone hinge?
No. A complete hinge contains many different part types. Thin flat shims, plates, screens or spring-like components may suit etching, while thick 3D load-bearing bodies normally require another process. OPPO’s Find N6, for example, publicly describes 3D-printed Grade 5 titanium hinge casing and wing plates.
What files should I send for quotation?
DXF, DWG, STEP or a dimensioned PDF can be reviewed. Include material grade, thickness, critical tolerances, quantity and any forming, heat-treatment, plating, passivation or surface-finish requirements.
Send a foldable-electronics drawing for DFM review
For a useful engineering answer, send the drawing rather than only a part name. XINKETCHING can review whether the geometry is better suited to photochemical etching, laser cutting, stamping or another manufacturing process.
Email: sales@xinketching.com
Phone: +86 17388801739
Contact XINKETCHING
Foldable electronics engineering guides
- Can Photochemical Etching Make Micro-Patterned Holes in a Foldable-Display Titanium Plate?
- Photo Etching vs Laser Cutting for Foldable-Phone Titanium Support Plates
- Grade 5 Titanium Etching for Foldable Electronics: DFM Limits Engineers Should Check
- Foldable-Phone Metal Mesh & Perforated Plates: Hole Size, Pitch and Tolerance Guide
- How to Choose a Foldable-Phone Metal Etching Manufacturer in China
- Titanium vs Stainless Steel for Foldable Display Support Plates
- Foldable Display Support Plate DFM Checklist for Photo Etching
- How Thin Metal Parts Are Manufactured for Foldable Smartphones
Industry references
- Samsung Global Newsroom — Flex Titanium technology and titanium plate with micro-patterned holes (July 2026)
- Apple Newsroom — iPhone Duo, Grade 5 titanium and custom vapor chamber (September 2026)
- OPPO Global — Find N6 titanium hinge casing and wing plates produced with 3D printing
Reference note: Brand and product references above describe publicly announced industry engineering trends. XINKETCHING does not claim to manufacture or supply components for Apple, Samsung or OPPO unless explicitly stated in a customer-approved case study.