Contact Firing Process
Contact Firing Process - Related Videos
13:40
Examining Local Network Processing using Multi-contact Laminar Electrode Recording
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Cited by 14 •
2011
A fundamental issue in our understanding of cortical circuitry is how networks in different cortical layers encode sensory information. Here we describe electrophysiological techniques utilizing multi-contact laminar electrodes to record single-units and local field potentials and present analyses to identify cortical layers.
12:47
Inducing Plasticity of Astrocytic Receptors by Manipulation of Neuronal Firing Rates
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Cited by 8 •
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Here we describe an adaptation of protocols used to induce homeostatic plasticity in neurons for the study of plasticity of astrocytic G protein-coupled receptors. Recently used to examine changes in astrocytic group I mGluRs in juvenile mice, the method can be applied to measure scaling of various astrocytic GPCRs, in tissue from adult mice in situ and in vivo, and to gain a better appreciation of the sensitivity of astrocytic receptors to changes in neuronal activity.
01:13
Contact Angle
0 Views •
2023
When a solid is dipped inside a liquid, the liquid surface becomes curved near the contact. For some solid–liquid interfaces, the liquid is pulled up along the solid, while for others, the liquid surface is convex or depressed near the solid surface. This phenomenon can be explained using the concept of cohesive and adhesive forces. The adhesive force is the molecular force between molecules of different materials, that is, between the molecules of the solid and the liquid. The cohesive force...
03:55
Larval Contact Assay: A Procedure to Evaluate Mosquito Larval Mortality following Direct Contact with Test Larvicidal Compound
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2025
In this video, we describe the larval contact assay to evaluate the toxicity of the dopamine receptor antagonist amitriptyline on the third instar stage larvae of mosquitoes, known vectors of several human infectious diseases. Assessing the larval mortality upon incubation with different amitriptyline concentrations over different time intervals helps determine its lethal concentration 50.
08:25
Contact Hypersensitivity as a Murine Model of Allergic Contact Dermatitis
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Cited by 2 •
2022
Contact hypersensitivity (CHS) is a murine experimental model of allergic contact dermatitis (ACD). CHS is based on sensitization with reactive hapten by painting the shaved skin of the chest and abdomen, with a subsequent ear skin challenge with a diluted hapten, causing a swelling reaction that is assessed in various ways.
FAQs
Glass frit acts as a temperature-responsive part of the printed metal paste. As heating proceeds, it softens and interacts with the dielectric and semiconductor beneath the print, helping establish the electrical interface while supporting contact formation. Its behavior therefore affects both adhesion and conductivity, making frit response central to producing contacts that remain mechanically robust and electrically useful.
Peak temperature and dwell time determine how far the paste constituents transform and how strongly the fired contact interacts with the underlying surface. Insufficient thermal exposure can limit contact formation, whereas excessive exposure can increase the risk of damage. Optimizing both variables helps preserve the semiconductor and dielectric while achieving low-resistance, well-adhered metallization for consistent device performance.
Organic binders are part of the printed metal paste and decompose during heating. This decomposition allows glass frit and the conductive metal components to interact with the dielectric and semiconductor beneath the print. The thermal schedule must therefore support binder removal without disrupting the contact-forming interactions needed for reliable current collection.
Production begins with screen printing metal paste onto the intended front or rear surface, followed by controlled heating. During the thermal cycle, binders decompose and glass frit softens and interacts with the dielectric and semiconductor. The process concludes with controlled cooling, which supports stable contact properties. Together, these stages convert printed metallization into functional electrical contacts.
Temperature profile, dwell time, and cooling behavior are the key controllable conditions identified for contact firing. The peak temperature governs thermal reactions, dwell time determines exposure, and cooling contributes to the final contact state. Controlling these features together helps balance adhesion, conductivity, and damage prevention, reducing variation in electrical performance across manufactured devices.
In solar-cell production, contact firing makes screen-printed front and rear metallization electrically functional. The resulting contacts collect current from the device, while their quality influences series resistance and therefore efficient operation. Because the process can be integrated with high-throughput manufacturing, controlling its thermal behavior is important for combining production consistency with photovoltaic performance.