Irving Rodriguez | Essemtec: What are the trade-offs between the different valve technologies offered, particularly concerning material compatibility and dispensing precision?
00:08:04 - 00:08:35
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Summary of the clip:
What are the trade-offs between the different valve technologies offered, particularly concerning material compatibility and dispensing precision?
The speaker details Semtech's extensive valve portfolio, comprising five distinct valve technologies. These include a piezo-driven valve for high-speed applications, a pneumatic jetting valve suited for materials with varying viscosity and thixotropy, and a volumetric system employing a screw valve for highly precise volume dispensing. The portfolio also includes a time-pressure valve, although there's a slight mismatch in the visual representation during the presentation.
The availability of multiple valve technologies allows Semtech's machines to handle a wide range of materials and applications. The choice of valve depends on factors such as the material's viscosity, the required dispensing precision, and the desired speed. The ability to select the most appropriate valve for a specific application is crucial for achieving optimal results in printed electronics and SMT assembly.
The speaker also mentions the possibility of integrating up to three different valves in a single machine. This multi-valve configuration provides even greater flexibility and allows for complex dispensing processes involving multiple materials with different properties. This capability is particularly valuable in advanced manufacturing scenarios where diverse materials need to be precisely applied in a single operation.
In this short video, you can learn:
* The range of valve technologies available in Semtech's machines.
* The specific applications and material compatibilities of each valve type.
* The benefits of integrating multiple valve technologies in a single machine.
š **Clip Abstract** This segment showcases Semtech's diverse valve portfolio, highlighting the different technologies available and their suitability for various materials and dispensing requirements. The ability to integrate multiple valves in a single machine offers enhanced flexibility for complex applications.
š Link in comments š
#DispensingValves, #PiezoDispensing, #PneumaticJetting, #ScrewValveDispensing, #PrintedElectronics, #SMTAssembly
This is a highlight of the presentation:
Jetting and SMT mounting technologies for additive and printed electronics on flexible and stretchable substrates
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00:04:21 - 00:05:48
How do you combine solder jetting, glue dispensing, and pick-and-place in a single machine for rapid PCB repair and prototyping?
How do you combine solder jetting, glue dispensing, and pick-and-place in a single machine for rapid PCB repair and prototyping?
This clip introduces an advanced, all-in-one platform designed for high-precision electronics repair, enhancement, and production. The system moves beyond traditional, cumbersome methods like manual stenciling by integrating multiple core SMT processes into a single, automated machine. This consolidation of technology allows for a seamless workflow, from material deposition to component placement, all controlled by intelligent software and vision systems.
The core of the platform's flexibility lies in its multiple dispensing and placement heads. It features high-speed solder jetting, which enables stencil-free, precise application of solder paste directly onto the pads, accommodating even the finest pitches. This is complemented by glue jetting for component adhesion and a high-accuracy pick-and-place module that handles a wide range of components, including challenging parts like 01005s, all within the same machine and the same production run.
The demonstrated workflow showcases the system's efficiency in a typical repair scenario. The machine uses its integrated vision system to automatically recognize the target location on the PCB. It then jets the exact volume of solder paste required for each pad before precisely picking and placing the new component. This entire sequence is automated, significantly reducing operator dependency and dramatically increasing the speed, reliability, and repeatability of complex repair tasks.
In this short video, you can learn:
* The core capabilities of an all-in-one SMT repair and production system.
* How solder jetting technology enables stencil-free application of solder paste.
* The automated workflow for component replacement, from paste deposition to final placement.
š **Clip Abstract** This clip introduces a multi-process system that integrates solder jetting, adhesive dispensing, and component placement for automated electronics repair. The technology eliminates the need for stencils, increasing speed, precision, and flexibility, especially for high-density boards.
š Link in comments š
#SolderJetting, #GlueDispensing, #PickAndPlace, #StencilFreeSMT, #AdditiveElectronics, #AdvancedElectronicsManufacturing
00:08:08 - 00:09:59
Your $50,000 BGA failed. Is there a reliable, automated way to re-ball it without the risks of manual stenciling or complex laser setups?
Your $50,000 BGA failed. Is there a reliable, automated way to re-ball it without the risks of manual stenciling or complex laser setups?
Re-balling high-value Ball Grid Arrays (BGAs), which can cost upwards of $50,000, is a critical process for salvaging expensive components and is a specialized business in itself. This clip details a highly reliable, automated workflow that replaces manual, error-prone methods. The process involves loading the BGA, using a high-speed jetting head to precisely dispense flux onto each pad, and then using a robotic pick-and-place head to accurately place individual solder bumps, which are conveniently supplied on a standard SMT reel.
This automated jetting and placement method is technically superior to other common re-balling techniques. It offers a dramatic improvement in speed, repeatability, and reliability compared to the traditional manual process, which involves using a physical stencil for flux and hand-placing the solder spheres. Furthermore, it avoids the process complexities and material limitations of laser-based systems, which require careful tuning of laser power to the specific solder alloy and are often slower than the jetting approach.
The quantifiable results of this automated process underscore its manufacturing-level quality and control. Following the re-balling and reflow process, measurements show that the height of a 500-micron solder bump is maintained within a tight tolerance of plus or minus 25 microns. This exceptional consistency in bump height is crucial for ensuring high yields and reliable connections when the refurbished BGA is ultimately mounted onto a new printed circuit board.
In this short video, you can learn:
* An automated workflow for BGA re-balling using flux jetting and pick-and-place.
* A technical comparison of three different re-balling methods: automated jetting, laser soldering, and manual stenciling.
* The achievable post-reflow solder bump height consistency (Ā±25 microns) using an automated process.
š **Clip Abstract** This clip details an automated process for re-balling high-value BGAs, a critical task for salvaging components worth up to $50,000. It compares the speed and reliability of using high-speed flux jetting and robotic ball placement against manual and laser-based methods, highlighting superior consistency with a final bump height variation of just Ā±25 microns.
š Link in comments š
#BGAReballing, #FluxJetting, #SolderBumpPlacement, #AutomatedElectronicsAssembly, #MicroElectronicsAssembly, #PrecisionManufacturing
00:05:50 - 00:07:12
Can you accurately jet solder paste for a 400-micron pitch QFP right next to a 1mm deep cavity on the same board?
Can you accurately jet solder paste for a 400-micron pitch QFP right next to a 1mm deep cavity on the same board?
This case study presents a challenging real-world repair application: replacing a Quad Flat Package (QFP) on an automotive Anti-lock Braking System (ABS) module. The difficulty stems from the complex topography and mixed feature sizes on the board. The repair area includes extremely fine-pitch pads (400 microns), a large central heat dissipation area with a topography variation of 1 millimeter, and other large flat-pack pads, all requiring precise solder paste deposition.
The technical solution leverages the power of advanced solder jetting to overcome these challenges. For the 400-micron fine-pitch pads, the system dispenses highly precise 260-micron diameter dots of solder paste. This is achieved with an exceptional XY placement accuracy of 20-24 microns at 3 sigma, which is critical to prevent solder bridging and ensure perfect joint formation on such tightly spaced features, even when dispensing next to deep cavities.
To optimize the process for the entire component, the system intelligently adapts its dispensing strategy. While maintaining high precision for the fine-pitch I/O, it switches to a high-throughput jetting mode for the larger central pads and heat dissipation areas. In this mode, it dispenses larger, 670-micron dots at a much higher speed, demonstrating the ability to dynamically adjust parameters to efficiently handle both fine-pitch precision and large-volume deposition within a single, automated repair cycle.
In this short video, you can learn:
* How to tackle solder paste deposition on boards with complex, multi-level topography.
* The specific jetting parameters (dot size, accuracy) required for reliable 400-micron pitch repair.
* The use of different jetting modes to optimize for both fine-pitch precision and high-throughput on a single device.
š **Clip Abstract** This case study demonstrates the repair of a fine-pitch QFP on a complex automotive module with significant topography. It highlights how solder jetting technology achieves high precision (20-micron accuracy) for 400-micron pitch pads while also accommodating large features, all in a single automated process.
š Link in comments š
#SolderJetting, #FinePitchSoldering, #PrecisionDispensing, #ComplexTopography, #AdditiveElectronics, #AutomotiveElectronics