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With a dual camera, Apple’s innovations include new objectives lens assemblies, new bonding processes and a new type of autofocus - System Plus Consulting

Apple iPhone 7 Plus: Rear-Facing Dual Camera Module

Published
15/11/2016
Product code
SP16293
Price
EUR 3 490
Applications
Consumer
Available sample Available flyer Ask for info

In the iPhone 7 Plus, Apple introduced a new rear camera module. Like its competitors LG and Huawei, they have chosen to integrate a dual camera. The module features two sensors, one closed to the sensor in the previous flagship, and another with a totally new structure.

Competition for the best camera phone was revived by Huawei with its flagship, the P9, using a dual camera. Like the other main players except Samsung, Apple has now introduced a dual camera module. This module integrates two 12 megapixel resolution CMOS Image Sensors (CISs) from Sony, using Exmor-RS Technology. The wide-angle objective lens assembly features an aperture of f/1.8 and a pixel size of 1.22 µm. The telephoto has a pixel size of 1 µm but a smaller aperture of f/2.8.

The iPhone 7 Plus dual camera module, with dimensions of 20.6 x 10.0 x 5.9 mm, is equipped with two sub-modules each including a Sony CIS. The wide-angle module is equipped with an optical image stabilization (OIS) voice coil motor (VCM), while the telephoto only comes with a general VCM. The CISs are assembled using a flip-chip process on a ceramic substrate with a gold stud bumping process.

With this new dual camera module and Sony’s Exmor-RS technology, Apple has innovated its offering in areas including phase detection autofocus (PDAF), its objective lens assembly structure, its sensor, and adopts a second generation of through-silicon vias (TSVs). Surprisingly both logic circuit sensors for controlling PDAF are very similar.

The report includes technology and cost analysis of the iPhone 7 Plus dual camera module. Also, comparisons with the Huawei P9, Samsung Galaxy S7 and iPhone 6S rear camera modules are provided. These comparisons highlight differences in structures, technical choices and manufacturing cost.

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Overview / Introduction

Dual Camera Module Supply Chain and Company Profile

iPhone 7 Plus Teardown

Physical Analysis

  • Physical Analysis Methodology
  • Dual Camera Module View and Dimensions
  • Dual Camera Module Disassembly
  • Cross-Section of the Dual Camera Module, Housing, Flex PCB, and IR Filter
  • Comparison With Apple iPhone 6S Plus Structure
  • CMOS Image Sensors
    • View and Dimensions
    • Pads and Tungsten Grid
    • CIS Pixels
  • Cross-Section of the CMOS Image Sensor
    • Overview
    • Pixel Array and Logic Circuit
  • Comparison of Right / Left CMOS Image Sensors
  • Comparison With Huawei P9, Samsung Galaxy S7 and Apple iPhone 6S Plus

CIS Manufacturing Process Flow

  • Overview
  • Logic Circuit Front-End Process
  • Pixel Array Circuit Front-End Process
  • BSI + TSV + Microlens Processes / Wide angle CIS
  • BSI + TSV + Microlens Processes / Telephoto CIS
  • CIS Wafer Fabrication Unit

Cost Analysis

  • Cost Analysis Synthesis
  • The Main Steps Used in the Economic Analysis
  • Yield Hypotheses
  • CMOS Image Sensor Cost
  • Wide angle CMOS Image Sensor / Telephoto CMOS Image Sensor
    • Logic Circuit Front-End Cost
    • Pixel Array Front-end Cost
    • BSI and TSV Front-End Cost
    • Color Filter and Microlens Front-End Cost
    • Total Front-End Cost
    • Back-End: Tests and Dicing
    • CIS Wafer and Die Cost
  • Dual Camera Module Assembly Cost
  • Lens Module Cost
  • AFA Cost
  • Final Assembly Cost
  • Dual Camera Module Cost

Estimated Price Analysis

Comparison with Huawei P9, Galaxy S7 and iPhone 6S Plus cost

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