I. Product Overview

In response to the strict demand for ultra-thin and miniaturized materials in the high-tech field, we specialize in providing high-purity miniature tantalum foil customized processing parts. The product is refined from high-purity tantalum foil (purity ≥ 99. 95%), combined with precision photolithography etching, laser micro-cutting and micro-stamping processes.

As shown in the product diagram, we have the mature ability to handle millimeter or even sub-millimeter ultra-small size components. The product has extremely high dimensional tolerance control (up to ± 0.005 mm), clean and burr-free edges, and excellent corrosion resistance and biocompatibility, which perfectly matches semiconductor packaging, medical implant micro-components, precision electrochemical sensors and micro-structures.

II. Interpretation of product selling points and entry points

1. Ultra-Micro Precision

Designed for ultra-miniaturized engineering, it can realize complex hollowing out, punching and pattern cutting on millimeter-level (such as 2mm × 3mm) or even smaller parts, with tight tolerances within ± 0. 005 mm and no edge corners or burrs.

2. Absolute corrosion resistance under strong acid and strong base

Tantalum exhibits glass-like corrosion resistance to hydrochloric acid, nitric acid, hydrobromic acid and most organic acids under 150 ℃, so it is the choice for preparing micro-corrosion gaskets, electrode conductive sheets and fluid control micro-valves.

3. Bio-compatibility and non-toxic properties

It meets medical grade standards, is non-toxic and harmless, and does not react with human tissue and blood. It is often used in miniature medical implant casings, miniature electrodes and surgical instrument components.

4. Flexible CAD drawing customization ability

Support DXF/STEP/DWG and other standard engineering drawing input, whether it is a small batch of rapid samples (Rapid Prototyping), or a large batch of automated continuous stamping for millions of people, it can be delivered accurately.

III. Table of Core Parameters and Specifications

1. Basic Properties

Property	Detailed Parameter	Notes/Advantages
Grade	Ta1/R05200 (Unalloyed Tantalum, EB Melted) Ta2/R05400 (Unalloyed Tantalum, Powder Metallurgy)	Complies with ASTM B708/ISO 13782 international standard
Purity	≥ 99.95% (high Purity grade can reach 99.99%)	Strictly control gas impurities like C, O, N, H, etc.
Density	16.69 g/cm³	High density, no microscopic pores
Melting Point	2996 ℃ (5425 ℉)	Excellent high temperature stability
Boiling Point	5458 ℃	Ultra High Vacuum (UHV) Low Out-gassing Rate
Elongation	15%-30% (depending on annealing condition)	Easy for micro-stamping and precision bending

2. Processing technology and tolerance specifications

Item	Specification
Foil Thickness	0.01 mm-0.2 mm (10 µ m-200 µ m ultrathin foil)
Part Size	0.5 mm-50 mm (Focus on micro and ultra-small size parts)
Tolerance	Precision grade: ± 0. 005 mm; Standard grade: ± 0.01 mm
Technology	CAD/CAM drawing customization: precision micro-stamping, laser micro-cutting, chemical etching
Surface Finish	Burr-free, bright table, pickled surface, oil-free ultrasonic cleaning status
Standards	ASTM B708 (Standard Specification for Tantalum and Tantalum Alloy Plate, Sheet, Strip, and Foil)

IV. Application Fields

Semiconductors and microelectronics: chip packaging micro-substrates, PVD evaporation masks (Shadow Mask), high-frequency capacitor micro-electrodes.

Medical Devices and Biotechnology: Implantable Sensor Miniature Mesh, Cardiac Pacemaker Assemblies, Neural Electrodes.

Precision instruments and electrochemistry: micro-corrosion-resistant valve pieces, explosion-proof pieces, gas/liquid micro-fluidic chip modules.

National defense: high-temperature resistant micro-spring film, radiation-proof micro-shielding cover.

V. Control and shipment packaging

The full inspection report provides: the factory is equipped with a material quality inspection certificate (MTC) that complies with the EN 10204 3.1 standard, including elemental analysis and size measurement report (quadratic image measuring instrument/optical microscopy inspection).

Dust-free and clean packaging: Miniature parts are packaged with vacuum anti-static bags combined with special transparent boxes, which are moisture-proof and anti-oxidation, and prevent tiny parts from colliding, deforming or losing during transportation.