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Citizen UHB COB LED CLL050-1825A1 Reverse Costing Analysis

Physical Analysis of the Device Step by Step Reconstruction of the Process Flow Cost of Manufacturing and Estimation of Selling Price

System Plus Consulting is proud to publish the reverse costing report of the Citizen CLL050-1825A1, an UHB LED supplied by Citizen electronics.

Packaged with Chip-On-Board technology (COB), the CLL050-1825A1 has a circular light-emitting zone at the center of its quadrangular Insulated Metal Substrate (38mm x 38mm). It integrates 450 LED chips arranged in a circular shape and covered with resin mixed with red and yellow phosphor.

The LED studied in this report has a luminous Flux of 8,160 lm at 1500 mA and a correlated color temperature (CCT) of 4000K, which make it suitable for Stadium and tunnel lights.

This report provides a complete teardown of the LED with:

  • Detailed photos
  • Material analysis
  • Schematic assembly description
  • Manufacturing Process Flow
  • In-depth economical analysis
  • Manufacturing cost breakdown
  • Selling price estimation

Table of Contents

1. Overview / Introduction

2. Company Profiles

3. Physical Analysis

  • About the Physical Analysis
  • Physical Analysis Methodology
  • Package Characteristics
  • Package Dimensions
  • Package Cross section
  • Package Substrate
  • Package Phosphor
  • Package Synthesis
  • LED SEM details
  • LED Cross section
  • LED Synthesis

4. Manufacturing Process Flow

  • LED Die Process Flow
  • Packaging Process Flow
  • Description of the Wafer Fabrication Units
  • Description of the Assembly Unit

5. Cost Analysis

  • Yield Hypotheses
  • LED Front-End Cost
  • Front-End : Wafer patterning Cost
  • Front-End : Epitaxy Cost
  • Front-End : Other Front-End Cost
  • Front-End : Cost per Equipment Family
  • Front-End : Cost per Consumable
  • Back-End 0 : Probe Cost & Dicing
  • LED Die Cost
  • Back-End 1 : Packaging Cost & Final test
  • Back-End 1 : Packaging cost per step
  • Back-End 1 : Packaging consumable cost
  • Component Manufacturing Cost

6. Estimated Manufacturer Price Analysis

  • Manufacturers financial ratios
  • Binning Impact on Manufacturing Price
  • Ideal manufacturer Price
  • Manufacturing Price with Binning Yield

Glossary

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