AADD Technologies Pvt. Ltd

1. Surface Mount Technology (SMT)

   • SMT involves placing electronic components directly onto the surface of the PCB. This method is widely used for its speed and the ability to accommodate small, high-density components.
   • Advantages: Faster production, smaller and lighter components, and improved performance in high-speed electronics.
   • Process: Components are soldered onto the PCB using a reflow soldering method, where the board is passed through an oven to melt the solder paste that binds the components to the board.

2. Through-Hole Technology (THT)

   • In THT, components are mounted through holes drilled in the PCB, and their leads are soldered on the other side of the board. This older method is often used for components that require higher mechanical strength, such as connectors or large capacitors.
   • Advantages: Better for components that endure mechanical stress.
   • Process: After the components are inserted into the holes, wave soldering or manual soldering is used to attach them.

3. Mixed Technology

   • A combination of both SMT and THT is often used in complex PCBs to take advantage of the benefits of each method. This is common in devices that require both high-density surface-mounted components and durable through-hole components for structural integrity.

PCB Assembly Process

The process of PCB assembly generally follows these stages:

1. PCB Fabrication

   • Before assembly, the PCB itself needs to be fabricated. This involves designing the board’s layout, printing copper traces, and creating vias (small holes that allow electrical connections between layers of the PCB).

2. Solder Paste Application

   • Solder paste (a mixture of flux and tiny solder balls) is applied to the PCB at the locations where surface-mount components will be placed. This is typically done using a stencil to ensure precision.

3. Component Placement

   • Pick and place machines are used to place the components on the PCB. These machines are highly accurate, positioning tiny components in place on the solder paste.

4. Soldering

   • Reflow soldering is used for surface-mount components, where the board is heated to melt the solder paste.
   • Wave soldering or manual soldering is used for through-hole components, with the board passing through a wave of molten solder or having individual connections soldered by hand.

5. Inspection and Testing

   • After assembly, the board undergoes several tests to ensure functionality. These tests may include Automated Optical Inspection (AOI) to check for placement errors or soldering defects, and Functional Testing to ensure the board performs as expected.

6. Final Assembly and Packaging

   • Once testing is complete and the PCB assembly is verified to be functional, it is then integrated into the final product, packaged, and prepared for shipping

The company manufactures complete electronic products, covering product design and aesthetics as well as hardware and firmware development.

It produces its own branded products, including power factor controllers, street light controllers, and GSM-enabled or remote sensing devices for water pumps.

In addition, the company manufactures products for other organizations based on their specifications. This includes end-to-end responsibility for design, sourcing, PCB population, enclosure development, labeling, and final assembly. These products are supplied for distribution or integration under the client’s brand.

Its capabilities include product design, PCB design, hardware and software development, component sourcing, prototyping, and final product manufacturing.

The experts at AADD Technologies work closely with clients to ensure that every design aligns with specific functionality, size, and performance requirements. From single-layer PCBs to complex multi-layer configurations, the company possesses the expertise and capability to support a diverse range of design needs.

Advanced Capabilities: The company utilizes advanced manufacturing technology, including high-precision pick-and-place machines, automated inspection systems, and testing equipment.

Quality Assurance: It follows defined quality control processes to ensure prototypes undergo testing and comply with applicable industry standards before proceeding to production.

Fast Turnaround: The company provides structured lead times for prototyping and works in coordination with client design and engineering teams to support production readiness.