1. Sierra Assembly Technology Inc.
"The bitterness of poor quality remains long after the sweetness of low price is forgotten."

2. Capabilities of Pcb’s Types of Pcb Pcb Assembly Equipment
Technical Capabilities
Pcb Material
Testing & Inspection
Conformal Coating
Capabilities
Types of Pcb
Pcb assembly equipment
Technical Capabilities
Pcb Material
Testing & Inspection
Conformal Coating

3. Types of Pcb
Rigid Pcb - Rigid PCBs are designed and manufactured mainly using copper and FR4 materials. This type of pcbs are known for their noiseless operation, immovable surface, and compact sizes.
Flexible PCBs - The benefits of flex PCBs are a reduction in size and weight, ability to undergo numerous bending cycles, and can be used in harsh application environments.
Multilayer PCBs -  These circuit boards are known for their small sizes, immense densities, increased flexibility, and strong EMI shielding. 
Burn-in PCBs - The burn-in process is performed to see whether the PCBs and their components can withstand high temperatures, and immense amounts of stress

4. Types of Pcb
Lead-free PCBs - Lead free solder allows for dramatic size reductions, tighter pitches, and easier PCB mass production.
Single Sided PCBs -  They are cost-effective platforms, and are suitable for low density designs. Single sided PCBs can be manufactured quickly due to their simple design.
High Temperature PCBs - The use of these materials ensure that the PCB will not suffer from mechanical stresses, electrical impedances, dielectric losses. 
High Reliability PCBs - These PCBs are used in challenging environments, and are designed to maintain stability and performance reliability. 

5. PCB Assembly Equipment
Our facility includes a variety of workstations, prepping equipment, assembly lines, two production lines, and assorted systems for PTH and SMT processes. The following points lists all the equipment that is available in our facility.
Prepping and Kitting Equipment:
Production Lines Surface Mount Technologies:
Plated Through Whole Technologies
Technical Device Wave Solder System (Two machine)

6. Technical Capabilities
Type
PCB prototype, fabrication & production
Surface Finish
HASL, Lead-free HASL, Immersion gold, tin, silver plated gold, OSP, Carbon link
Solder mask color
Green, Red, White, Yellow, Black & Blue
Mini solder mask bridge
0.025 mm
Layer Count
1-22 layer HDI
Board thickness
0.125 – 6.00 mm
Quality Standard
IPC-A-600F & MIL- STD- 105D China GB4588

7. PCB Materials
The below list features some materials that we regularly work with:
FR-4: FR is an abbreviation of Flame Retardant. This material is a glass fiber epoxy laminate, and a popular PCB material. The material derives its flame retardant qualities from a resin binder.
FR-5: This is a glass fabric reinforced material featuring an epoxy resin binder for high temperature applications. FR-5 exhibits excellent mechanical properties at high temperatures and humid conditions. 
FR-3: This material features a composition of an epoxy resin binder and hard paper. This is used for budget-friendly consumer electronics.
CEM Materials: CEM is an abbreviation for Composite Epoxy Materials, which refers to a group of composite materials produced from non-woven glass, woven glass fabric surfaces.

8. PCB Assembly Testing and Inspection
Our testing and inspection equipment are suitable for simple as well as complex PCB assembly requirements. We can take on extremely demanding projects, and ensure high quality product yield. Given below are our testing and inspection equipment and capabilities:
ICT – In Circuit Testing
X-Ray System
Rework
Mechanical Assembly / Wire Harness

9. Conformal Coating Services
Full Range of Coatings: We provide a full range of coating services with popular coating chemicals - parylene, acrylic resin, epoxy, polyurethane, and silicone.
Full Range of Application Process: We provide a full range of application process such as batch spraying, vapor deposition, robotic coating, brushing, and dipping.
Curing and Drying: We provide convection, ultraviolet (UV) and infrared (IR) curing facilities.
Quality Control Processes: we provide contamination and cleaning testing, viscosity monitoring, thickness and adhesive measurement, humidity inspection, and black light inspection of the circuit.

10. Advantages of Conformal Coating
High SIR reduces the risk of problems such as electricity leakage, shorting, and signal losses.
Eliminates chances of performance degradation due to environmental factors
Reduces the circuit board’s weight
Reduces conductor spacing over 80%
Minimizes assembly costs
Cost-effective, and improves the product’s service life

11. THANK YOU For more details visit, http://www.sierraassembly.com/
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