描述
MacDermid Alpha Micromax 5739 Gold/Platinum Co-fire Solderable Conductor for GreenTape 951 LTCC
Type: Gold/Platinum Co-fire Solderable Conductor
System: GreenTape 951 LTCC
Viscosity: 175–300 Pa.s
Shelf Life: 6 months
Micromax 5739 is an external gold/platinum conductor compatible with the Micromax GreenTape 951 low temperature co-fired ceramic system, ideally suited for solder applications. When used with GreenTape 951 and compatible via fill pastes, it offers high reliability, superior solder acceptance, and cofire processing. Initial adhesion is ≥25 N; aged adhesion at 240 hrs and 150°C remains ≥20 N.
Micromax 5739 from MacDermid Alpha is an external gold/platinum conductor developed as part of the Micromax GreenTape 951 low temperature co-fired ceramic (LTCC) system. It is ideally suited for solder applications, where the external conductor layer is expected to accept solder reliably. When used with GreenTape 951 and compatible via fill pastes, the system offers high reliability, superior solder acceptance, and cofire processing. Typical fired properties show initial adhesion of at least 25 N, with aged adhesion of at least 20 N after 240 hours at 150°C.
The paste has a viscosity range of 175–300 Pa.s and uses Micromax 8250 as the recommended solvent or thinner. For detailed recommendations on use with GreenTape 951, refer to the Micromax GreenTape 951 design guide and product data sheet. Mix thoroughly before use by slow, gentle hand stirring 1–2 minutes with a clean burr-free spatula, avoiding air entrapment. Print directly onto unfired Micromax GreenTape 951 using thick film printing methods and a vacuum stone or other support structure that uniformly distributes vacuum. A 325 mesh stainless steel screen with 12 μm emulsion is standard; optimum printing is generally achieved at 20–23°C. Dry in air in a well-ventilated oven or conveyor dryer for 5 minutes at 120°C, and do not over-dry. Laminate multiple GreenTape 951 sheets and fire per the GreenTape 951 design guide. Micromax 5739 performs well with up to two refires under optimal conditions; ensure adequate airflow during firing and refiring. It is not recommended for use buried or in completely enclosed cavities. Clean-up uses 1-propoxy-2-propanol. 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 5739 gold/platinum co-fire conductor. Original factory TDS and batch-specific COA are available on request for your LTCC programs.
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Complete TDS, COA, and regulatory documentation available
Key Features of MacDermid Alpha Micromax 5739
- External gold/platinum conductor for the GreenTape 951 LTCC system
- Ideally suited for solder applications
- Superior solder acceptance for reliable solder joints on LTCC
- Co-fire processing with GreenTape 951 and compatible via fill pastes
- High reliability with stable adhesion across thermal aging
- Initial adhesion ≥25 N; aged adhesion ≥20 N after 240 hrs at 150°C
- Viscosity 175–300 Pa.s for stable screen printing
- Screen: 325 mesh stainless steel with 12 μm emulsion
- Drying: 120°C for 5 minutes; do not over-dry
- Supports up to two refires under optimal conditions
- Thinner Micromax 8250; clean-up 1-propoxy-2-propanol
- Not recommended for buried or completely enclosed cavities
Primary Applications
- External solderable conductor in LTCC — solder-facing Au/Pt layer for GreenTape 951
- Gold conductor — per TDS application field
- Co-fired multilayer LTCC circuits — co-fire processing with GreenTape 951
- Solder attachment — where superior solder acceptance is required
Full Technical Specifications
| Property | Typical Value | TDS Reference |
| Product Type | Gold/platinum co-fireable solderable conductor | TDS: Gold/Platinum Cofireable Solderable Conductor |
| Application | Gold conductor | TDS: Gold conductor |
| Solvent or Thinner | Micromax 8250 | TDS: Micromax 8250 |
| Viscosity | 175 to 300 Pa.s | TDS: Brookfield 2xHAT, UC&SP, 10 rpm, 25°C |
| Mask Mesh | 325 | TDS: 325 |
| Screen Type | 325 mesh stainless steel with 12 μm emulsion | TDS: 325-mesh stainless steel, 12 μm emulsion |
| Printing Room Temperature | 20 to 23 °C | TDS: 20-23°C |
| Substrate | Unfired Micromax GreenTape 951; vacuum stone or equivalent support recommended | TDS: Printing |
| Drying Schedule | 5 minutes at 120°C; do not over-dry | TDS: 5 minutes at 120°C |
| Lamination and Firing | Consult GreenTape 951 design guide and product data sheet for profile | TDS: Lamination and firing |
| Refiring | Performs well with up to two refires under optimal conditions | TDS: up to two refires |
| Airflow Requirement | Ensure adequate airflow to the part during firing and refiring | TDS: adequate air-flow |
| Buried Use | Not recommended for use buried or in completely enclosed cavities | TDS: not recommended |
| Clean-up Solvent | 1-Propoxy-2-Propanol | TDS: 1-Propoxy-2-Propanol |
| System Compatibility | Micromax GreenTape 951 LTCC system | TDS: Product Description |
| Initial Adhesion | ≥ 25 N | TDS: Typical Fired Properties |
| Aged Adhesion (240 hrs at 150°C) | ≥ 20 N | TDS: Typical Fired Properties |
| Co-fire Processing | Yes | TDS: Product benefits |
| Solder Acceptance | Superior | TDS: Product benefits |
| Reliability | High | TDS: Product benefits |
| 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. Fired properties measured at 22 μm fired film thickness.
Recommended Processing Conditions
| Parameter | Recommended Value | TDS Reference |
| Mixing Prior to Use | Slow, gentle hand stirring 1–2 minutes with a clean burr-free spatula; avoid air entrapment | TDS: 1-2 minutes |
| Room Temperature Before Printing | 20 to 23 °C | TDS: 20-23°C |
| Screen Mesh | 325 mesh stainless steel with 12 μm emulsion | TDS: 325 mesh, 12 μm |
| Printing Substrate | Directly onto unfired Micromax GreenTape 951 with a vacuum stone or equivalent support | TDS: Printing |
| Thinning | Not recommended; Micromax 8250 only to replenish solvent losses, without over-thinning | TDS: Thinning |
| Drying | Air, in a well-ventilated oven or conveyor dryer, 5 minutes at 120°C; do not over-dry | TDS: 5 minutes at 120°C |
| Lamination and Firing | Per GreenTape 951 design guide and product data sheet for belt or box air furnaces | TDS: Lamination and firing |
| Refiring | Up to two refires under optimal conditions with adequate airflow | TDS: up to two refires |
| Clean-up Solvent | 1-Propoxy-2-Propanol | TDS: 1-Propoxy-2-Propanol |
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 |
| Firing Atmosphere | Adequate airflow to the part during firing and refiring. Not for buried or fully enclosed cavity use. | TDS: Lamination and firing |
| 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 5739 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
Why is 5739 a suitable choice for solder applications on LTCC?
Micromax 5739 is an external gold/platinum conductor that is ideally suited for solder applications. When used with GreenTape 951 and compatible via fill pastes, it offers superior solder acceptance and high reliability, making it well suited to solder-facing external conductor layers.
What adhesion values does 5739 deliver over thermal aging?
Typical fired properties show initial adhesion of at least 25 N, and aged adhesion of at least 20 N after 240 hours at 150°C. This supports reliable solder joints over the product’s service life.
How many refires can 5739 handle?
Micromax 5739 performs well with up to two refires under optimal conditions. It is important to ensure adequate airflow to the part during both firing and refiring. The product is not recommended for use buried or in completely enclosed cavities.
Why does the TDS say “do not over-dry” for 5739?
The recommended dry is 5 minutes at 120°C in air in a well-ventilated oven or conveyor dryer. Over-drying can affect the laminate-and-fire behavior with GreenTape 951, so the TDS explicitly warns against extending the dry time or temperature beyond the recommendation.
What screen and printing parameters work with 5739?
A 325 mesh stainless steel screen with 12 μm emulsion is standard. Print directly onto unfired GreenTape 951 using a vacuum stone or equivalent support that uniformly distributes vacuum. Optimum printing is generally achieved at 20–23°C.
Should 5739 be thinned?
Thinning is not recommended, as the material is supplied formulated for optimal performance. Thinner may be added only to replenish solvent lost during normal usage, taking care not to over-thin.
How should 5739 be stored?
Store tightly sealed at 5–30°C in a clean, stable environment. Unopened shelf life is 6 months from shipment. Some settling may occur, so mix thoroughly before reuse.
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We supply authentic MacDermid Alpha Micromax 5739 gold/platinum co-fire conductor for LTCC solder 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.
