Sensing

AKM AK8973S 3-Axis Electronic Compass

Published: 10/09/2010
Product code: SP10034
Price: EUR 6990
Applications: Mobile & Consumer

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Introduction
Summary
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System Plus Consulting is proud to publish the reverse costing report of the 3-Axis Electronic Compass AK8973S supplied by Asahi Kasei Microsystems (AKM).

The AK8973S is a Si-monolithic 3-axis geomagnetic sensor based on Hall Effect technology. Using only one silicon die packaged at the wafer level, the WLP LGA package of the AK8973S achieves a dimension of 2.5×2.5×0.5mm.

The AK8973S 3-Axis Compass is suitable for navigation systems in cell phones and personal navigation devices, and motion input in video game controllers.

This report provides complete teardown of the geomagnetic sensor with:

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

Glossary

Overview/Introduction

Executive Summary
Reverse Costing Methodology

AKM Company Profile

Physical analysis

Synthesis of the Physical Analysis
Physical Analysis Methodology
Package Characteristics & Markings
Package X-Ray
Device Structure
ASIC – Dimensions
ASIC – Pads Distribution Reconstitution
ASIC – Block Functions
ASIC – Markings
ASIC – Bond Pads
ASIC – Capacitors/Resistors
ASIC – Hall Sensors
CMOS Hall Sensor Principle
Component Cross-Sections
Physical Data Summary
Process Characteristics

Manufacturing Process Flow

Overview
ASIC Process Flow
Wafer-level Packaging Process Flow
Description of the Wafer Fabrication Units

Cost Analysis

Synthesis of the Cost Analysis
Main Steps of Economic Analysis
Supply Chain Analysis
Yields Hypotheses
Front-End : Hypotheses
Front-End Cost
Back-End 0 : Probe Test Cost
Back-End 0 : Packaging Hypotheses
Back-End 0 : Packaging Cost
Back-End 0 : Packaging Cost per Process Steps
Back-End 0 : Dicing Cost
Total Wafer Cost (Front-End + Back-End 0)
Back-End 1 : Final Test & Calibration Cost
AK8973S Cost (FE + BE 0 + BE 1)

Estimated Manufacturer Price Analysis

Conclusion