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Quality Control Programs
Product Reliability Test
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RF Power Transistors
2SC Series
2N/3DA/3DG/3DK Series
AGR/AM/BFQ/BLU Series
BLV/BLW/BLY/BLX Series
CD/HXTR/MRA/MRF Series
MRW/MS/MSC/NE Series
PT/PTB/SD Series
TP/TPV/TPW Series
Other Series
RF Power Transistors Package
Screw Cooling Structure
Flat Cooling Structure
Ceramic Cooling Structure
Quality Control Programs HomeQuality ControlQuality Control Programs

Quality Control Flowchart

 
Note: The quality control flowchart uses a plastic/ceramic package as a representative sample. Some tests and inspections may not be applicable to all product categories.

Incoming Inspection

Quality assurance departments perform incoming inspection of materials at the time of procurement. 
This inspection helps guarantee the quality of products that we purchase.

In-Process Inspections

Our manufacturing groups implement these inspections to set control items and standards for each manufacturing process. Prompt feedback maintains and improves the quality consciousness throughout the groups. Inspections occur regularly for each production line.

In-Process QA Inspection

The Quality Assurance Groups perform inspections at the end of each manufacturing phase. 
Using the sampling standards, the groups confirm the level of quality before the products proceed to the next phase.

Statistical Process Control (SPC)

SPC is performed for especially important parameters in the manufacturing processes. Engineering groups set the major quality parameters and their specified values for the manufacturing processes to assure proper quality. The manufacturing groups determine control values for production process equipment and conditions. 
Once mass production begins, the manufacturing groups implement control plans to check and improve the product capability of each process. 
Some important parameters are critical dimensions, monitor characteristics, bonding strength, electrical characteristics and yield. Computer software checks each parameter automatically.

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