Irving Rodriguez | Essemtec: How does the use of liquid metals, like Galinstan, address the challenges of conductivity and stretchability in flexible electronics?
00:10:02 - 00:10:23
Other snippets from this talk
Summary of the clip:
How does the use of liquid metals, like Galinstan, address the challenges of conductivity and stretchability in flexible electronics?
The speaker highlights Semtech's experience with liquid metals, particularly Galinstan, a eutectic alloy of gallium, indium, and tin with a melting point of 11 degrees Celsius. Galinstan is presented as a crucial material for stretchable electronics due to its high thermal and electrical conductivity while remaining liquid at room temperature. This liquid state allows the material to maintain conductivity even when subjected to significant stretching or deformation.
The unique properties of Galinstan address a key challenge in flexible and stretchable electronics: maintaining reliable electrical connections under mechanical stress. Traditional conductive materials, such as copper or silver, can crack or delaminate when stretched, leading to a loss of conductivity. Galinstan's liquid nature overcomes this limitation, enabling the creation of electronic circuits that can withstand significant deformation without compromising performance.
The speaker notes that Galinstan is well-known in the industry for its suitability in stretchable electronics applications. Its combination of high conductivity and liquid state makes it an ideal material for creating flexible sensors, wearable devices, and other applications where mechanical flexibility is paramount. Semtech's expertise in dispensing liquid metals like Galinstan positions them as a key player in the development of advanced stretchable electronic devices.
In this short video, you can learn:
* The properties of liquid metals, specifically Galinstan, for stretchable electronics.
* How Galinstan's liquid state enables conductivity under mechanical stress.
* The applications of liquid metals in flexible sensors and wearable devices.
š **Clip Abstract** This segment introduces the use of liquid metals, such as Galinstan, in stretchable electronics, emphasizing their ability to maintain conductivity under mechanical stress. Galinstan's unique properties make it ideal for flexible sensors and wearable devices.
š Link in comments š
#Galinstan, #LiquidMetals, #StretchableElectronics, #FlexibleConductivity, #WearableTech, #SensorTechnology
This is a highlight of the presentation:
Jetting and SMT mounting technologies for additive and printed electronics on flexible and stretchable substrates
More Highlights from the same talk.
00:04:23 - 00:05:06
How does "jetting on the fly" impact material selection and process control?
How does "jetting on the fly" impact material selection and process control?
The speaker highlights a key specialty of their machines: "jetting on the fly." This involves dispensing material while the machine is in motion, achieving a speed of approximately 1.1 million dots per hour, which translates to about 300 Hz. This high-speed jetting capability is complemented by a variable jetting height feature.
The variable jetting height is particularly important when dealing with substrates that have cavities or are uneven. The machine maintains a specific distance between the jetting nozzle and the PCB, avoiding contact. This non-contact approach is crucial for ensuring consistent and accurate material deposition on complex or irregular surfaces.
This combination of high-speed "jetting on the fly" and variable jetting height allows for efficient and precise material application in various scenarios, especially where substrate topography presents a challenge. This capability enhances the machine's versatility and suitability for a wider range of applications in printed electronics and SMT assembly.
In this short video, you can learn:
* The concept of "jetting on the fly" for high-speed dispensing.
* The importance of variable jetting height for uneven substrates.
* How these features contribute to efficient and precise material deposition.
š **Clip Abstract** This segment introduces "jetting on the fly," a high-speed dispensing technique, and emphasizes the significance of variable jetting height for handling uneven surfaces. These features enhance the precision and efficiency of material deposition in printed electronics and SMT assembly.
š Link in comments š
#JettingOnTheFly, #VariableJettingHeight, #HighSpeedDispensing, #NonContactDeposition, #PrintedElectronics, #SMTAssembly
00:08:04 - 00:08:35
What are the trade-offs between the different valve technologies offered, particularly concerning material compatibility and dispensing precision?
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