描述
MacDermid Alpha Micromax 5715R Gold Conductor for Au and Al Wire Bonding in High-Density Hybrids
Type: Gold Conductor
Application: High-Density Hybrids
Viscosity: 450–600 Pa.s
Shelf Life: 6 months
Micromax 5715R is a cadmium-free, screen printable gold conductor used as a gold wire bondable conductor in high-density hybrids. It offers good automatic gold wire bonding yields with 1-mil and 2-mil wire, excellent wire bond acceptance over a broad thickness range, and excellent bond results with 1 mil Al wire. Pull strength remains stable at both 6 μm and 10 μm fired thickness.
Micromax 5715R from MacDermid Alpha is a cadmium-free, screen printable gold conductor composition developed for high-density hybrid circuits. It is used as a gold wire bondable conductor, delivering good automatic gold wire bonding yields with both 1-mil and 2-mil gold wire, and excellent wire bond acceptance over a broad thickness range. In addition to gold wire, excellent bond results have been shown with 1 mil Al wire, which gives flexibility in wire material selection. Wirebonded properties show stable pull strengths at different fired thicknesses, with all wire breaks and no bond lifts.
The paste carries a viscosity range of 450–600 Pa.s and uses Micromax 8672 as the recommended solvent or thinner. Reported properties are based on 96% alumina substrates. A 325 mesh stainless steel screen with 12 μm (0.5 mil) emulsion thickness is recommended. Allow the wet print to level 10–15 minutes at room temperature, then dry at 150°C for 15 minutes. Fire dried prints in a belt furnace on a 30-minute cycle with a peak temperature of 850°C for 10 minutes. No significant changes in performance characteristics were seen after multiple refiring at 850°C. Bonding was tested on a Hughes 2460-III Automatic Gold Wire Bonder, stage 150°C, ceramic tool, 1.0 mil Au wire, tensile strength 8 g min, elongation 3–5%. Store sealed at 5–30°C; unopened shelf life is 6 months.
Genuine MacDermid Alpha Micromax Imported Stock & Technical Support
We hold regular stock of authentic MacDermid Alpha Micromax 5715R gold conductor paste. Original factory TDS and batch-specific COA are available on request for your high-density hybrid programs.
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Complete TDS, COA, and regulatory documentation available
Key Features of MacDermid Alpha Micromax 5715R
- Cadmium-free, screen printable gold conductor composition
- Developed for gold wire bondable applications in high-density hybrids
- Good automatic gold wire bonding yields with 1-mil and 2-mil wire
- Excellent bond results with 1 mil Al wire
- Excellent wire bond acceptance over a broad thickness range
- Stable pull strength at both 6 μm and 10 μm fired thickness
- Stable after multiple refiring at 850°C
- Viscosity 450–600 Pa.s for stable screen printing
- Screen: 325 mesh stainless steel with 12 μm (0.5 mil) emulsion
- Drying: 150°C for 15 minutes after 10–15 minutes leveling
- Firing: 30-minute cycle, 850°C peak for 10 minutes
- Thinner Micromax 8672; substrate 96% alumina
Primary Applications
- High-density hybrids — gold wire bondable conductor layer
- High reliability Au conductor — per TDS application field
- Automatic gold wire bonding — 1-mil and 2-mil gold wire
- Aluminum wire bonding — excellent results with 1 mil Al wire
Full Technical Specifications
| Property | Typical Value | TDS Reference |
| Product Type | Gold conductor composition | TDS: Gold Conductor Composition |
| Application | High reliability Au conductor | TDS: High reliability Au conductor |
| Solvent or Thinner | Micromax 8672 | TDS: Micromax 8672 |
| Viscosity | 450 to 600 Pa.s | TDS: Brookfield HBT, UC&SP, SC4-14/6R, 10 rpm, 25°C |
| Mask Mesh | 325 | TDS: 325 |
| Mask Emulsion | 12 μm (0.5 mil) | TDS: 12 μm |
| Drying Time | 15 minutes | TDS: 15 min |
| Drying Temperature | 150 °C | TDS: 150 °C |
| Theoretical Coverage | 50 to 80 cm²/g | TDS: 50 to 80 cm²/g |
| Recommended Film Thickness | 10 μm | TDS: 10 μm |
| Substrate Compatibility | 96% alumina | TDS: 96% alumina |
| Printing Screen | 325 mesh stainless steel, 12 μm (0.5 mil) emulsion | TDS: 325 mesh, 12 μm |
| Leveling Time | 10 to 15 minutes at room temperature | TDS: 10 to 15 min |
| Firing Profile | 30-minute cycle, 850°C peak for 10 minutes | TDS: 30 min cycle, 850°C for 10 min |
| Refiring Stability | No significant changes after multiple refiring at 850°C | TDS: Firing |
| Au Wire Bonding | Good automatic gold wire bonding yields with 1-mil and 2-mil wire | TDS: Product Description |
| Al Wire Bonding | Excellent bond results with 1 mil Al wire | TDS: Product Description |
| Wire Bond Acceptance | Excellent over a broad thickness range | TDS: Product Description |
| Bonding Test Conditions | Hughes 2460-III Automatic Gold Wire Bonder, stage 150°C, ceramic tool, 1.0 mil Au wire, tensile strength 8 g min, elongation 3–5% | TDS: Bonding |
| Pull Strength 1.0 mil Au at 6 μm | 13.7 g | TDS: Wirebonded Properties |
| Pull Strength 1.0 mil Au at 10 μm | 13.0 g | TDS: Wirebonded Properties |
| Pull Strength 2.0 mil Au at 6 μm | 40.5 g | TDS: Wirebonded Properties |
| Pull Strength 2.0 mil Au at 10 μm | 39.6 g | TDS: Wirebonded Properties |
| Failure Mode | All wire breaks, no bond lifts | TDS: Wirebonded Properties |
| Cadmium Free | Yes (no intentional addition) | TDS: Product Description |
| Shelf Life | 6 months | TDS: 6 months |
| Storage Temperature | 5 – 30 °C | TDS: 5°C – 30°C |
Note: All listed values are typical and may vary by batch. Values based on MacDermid Alpha official TDS. Independent qualification testing is required prior to production use. “Cadmium free” as used herein means cadmium is not intentionally added to the referenced product. Trace amounts may be present.
Recommended Processing Conditions
| Parameter | Recommended Value | TDS Reference |
| Mixing Prior to Use | Thoroughly mix to redisperse solids | TDS: thoroughly mix |
| Screen Mesh | 325 mesh stainless steel with 12 μm (0.5 mil) emulsion | TDS: 325 mesh, 12 μm |
| Leveling | 10–15 minutes at room temperature | TDS: 10-15 minutes |
| Drying | 150°C for 15 minutes | TDS: 15 minutes at 150°C |
| Firing | 30-minute cycle, 850°C peak for 10 minutes, belt furnace | TDS: 30 min cycle, 850°C for 10 min |
| Refiring | Stable after multiple refiring at 850°C | TDS: Firing |
| Thinner | Micromax 8672 | TDS: Micromax 8672 |
Handling and Storage Recommendations
| Storage Rules | Store tightly sealed in a clean, stable environment at 5-30°C. | TDS: 5°C – 30°C |
| Shelf Life | 6 months in unopened containers from date of shipment. | TDS: 6 months |
| Pre-use Preparation | Thoroughly mix prior to use. Some settling of solids may occur during storage. | TDS: thoroughly mix |
| Transportation | Under normal shipping conditions, no temperature control is expected. For extended transport periods, confirm product suitability. | TDS: normal shipping conditions |
Official Technical Documentation
| Document Type | Document Introduction | Document Request |
| TDS | MacDermid Alpha Micromax 5715R original factory technical data sheet | Request TDS |
| COA | Batch-specific certificate of analysis | Request COA |
| SDS | Safety Data Sheet for handling and storage | Request SDS |
Frequently Asked Questions
How does 5715R compare with 5715G?
Both are cadmium-free gold conductors for high-density hybrids with wire bonding capability. 5715R additionally documents excellent bond results with 1 mil Al wire and includes pull strength data at both 6 μm and 10 μm fired thickness for 1.0 mil and 2.0 mil Au wire.
What pull strengths does 5715R deliver?
For 1.0 mil Au wire: 13.7 g at 6 μm fired thickness and 13.0 g at 10 μm. For 2.0 mil Au wire: 40.5 g at 6 μm and 39.6 g at 10 μm. All failures were wire breaks, with no bond lifts.
Can 5715R bond aluminum wire?
Yes. The TDS states that excellent bond results have been shown with 1 mil Al wire, in addition to the gold wire bonding capability with 1-mil and 2-mil gold wire.
What wire bonding test conditions were used for 5715R?
Bonding was tested on a Hughes 2460-III Automatic Gold Wire Bonder, stage 150°C, ceramic tool, 1.0 mil Au wire, tensile strength 8 g min, elongation 3–5%.
How stable is 5715R after refiring?
The TDS states that no significant changes in performance characteristics were seen after multiple refiring at 850°C. This supports multilayer builds where the conductor is fired more than once.
What screen setup works with 5715R?
A 325 mesh stainless steel screen with 12 μm (0.5 mil) emulsion thickness is recommended. Recommended film thickness is 10 μm, with theoretical coverage of 50–80 cm²/g.
Is 5715R cadmium free?
Per the TDS, cadmium is not intentionally added to 5715R. Trace amounts may be present. Customers with strict compliance thresholds should verify against their own requirements.
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We supply authentic MacDermid Alpha Micromax 5715R gold conductor paste for high-density hybrid programs. Contact our team for bulk quotations, sample availability, technical documentation, and application support.
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Disclaimer: All technical data on this page are for general guidance only and are not product specifications. Buyers must carry out independent trials and verify suitability before bulk ordering. Actual values may vary between production lots. “Cadmium free” as used herein means cadmium is not intentionally added to the referenced product. Trace amounts may be present.
