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SETi - UVTOP270TO39HS and SS35DF227513 UVC LEDs for Disinfection and Chemical Analysis

3 990 €

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SETi UV LED flyer

Deep ultraviolet LEDs with 275nm peak emission in 0.1mm² and 1mm² dies.

This report combines the analysis of two components in order to offer a broad vision of the technologies used by UVC LEDs in terms of applications and power output. The UVTOP270TO39HS and SS35DF227513 are two 275nm UVC LEDs from Sensor Electronic Technology Inc. (SETi). The UVTOP270TO39HS, with its hemispherical lens and 0.1mm² LED, is adapted for fluorescent spectroscopy and chemical / biological analysis. The SS35DF227513, with its flat window, is designed for disinfection.

The two LED dies are based on the same technology: an AlN template layer deposited on a sapphire substrate. The AlGaN active layers are epitaxied on the AlN layer, but the thickness is very different between the two dies. The SS35DF227513 is manufactured using the latest SETi technological evolution. The new AlN and AlGaN structure reduces the defect density to enhance external quantum efficiency. At 1mm², the SS35DF227513 is 9x taller than SETi’s first UVC LED and boasts 15x more power.  

SETi UV LED System Plus Consulting 1
The TO39 with a hemispherical lens is an expensive package, but it is destined for instrumentation. The new SMD3535 package in the SS35DF227513’s ceramic is cheaper and designed for disinfection with a large viewing angle and better thermal resistance that allows continuous use of the 1mm² LED. 

This report delivers a deep technology analysis of the packaging and the components, with images of the complex AlN and AlGaN epitaxy layer stack and electrode structure. Also included are a production cost analysis and an overall comparison with the first SETi UVC LED.


SETi UV LED System Plus Consulting 2               SETi UV LED System Plus Consulting 3




Table of contents

Overview / Introduction

> Executive Summary
> Reverse Costing Methodology


Company profile 

> SETi Profile



Physical Analysis

> Package
- Physical analysis methodology
- Package views & dimensions
- Package opening
- Package cross-section
- Package process
> LED Die
- LED views & dimensions
- Epitaxy
- Cathode
- Anode
- LED thickness
- LED characteristics


Manufacturing Process Flow

> Global Overview
> LED Fabrication Unit



























> LED Process Flow

> Package Process Flow


Cost Analysis

> Synthesis of the Cost Analysis
> Main Steps of the Economic Analysis
> Yields Hypotheses
> AlN Template Cost
> Epitaxy Step
> LED Epitaxy Cost
> LED Front-End Cost
> LED Wafer Cost
> LED Cost Per Process Steps
> Back-End: Probe and Cleaving Cost
> Packaging Cost
> Final Assembly Cost
> Component Cost


Price Estimation

SETI UV LED: Comparison Between Old and New 


The Table of Contents are similar for both components



About the authors


Headquartered in Nantes, France, System Plus Consulting is specialized in technology and cost analysis of electronic components and systems. During our 20 years in business, we have built and refined detailed cost models as the primary tools for hundreds of analyses.

The highly qualified System Plus cost engineers combine broad and deep skills in semiconductor and electronics technologies with years of experience in cost modeling. We offer:custom reverse costing analyses, standard reverse costing reports and costing tools within the following fields: integrated circuits, power devices and modules, MEMS & sensors, photonics (LED, Image Sensors), packaging and electronic boards and systems.



















































  • Detailed Photos

  • Precise Measurements

  • Material Analysis

  • Manufacturing Process Flow

  • Supply Chain Evaluation

  • Manufacturing Cost Analysis

  • Estimated Sales Price

  • Comparison of SS35DF227513 (2016), UVTOP270TO39HS (2016), and UVTOP270-BL-TO39 (2012) UVC LED