Technology, Process and Cost
BYD 1200V SiC Power Module in Denza D9 BEV
By Yole SystemPlus —
Full-SiC Power module with sintered chips and advanced interconnections in the inverter of BYD’s 8-in-1 Powertrain Domain Controller.
SPR23792
Overview / Introduction
- Executive Summary
- Reverse Costing Methodology
- Glossary
Company Profile
Physical Analysis
- Summary
- Package Analysis
- Package View & Opening
- Package Cross-Section
- SiC MOSFET Die Analysis
- Die Views & Dimensions, Die Delayering
- Die Cross Section
- Physical Comparison
- SiC MOSFET similar designs analyzed by Yole SystemPlus
Manufacturing Process Flow
- Wafer Fab Unit
- SiC Wafer Process Flow Sketches
- Assembly Unit
- Assembly Process Flow
Cost Analysis
- Main Steps of the Economic Analysis
- Yields Explanation and Hypotheses
- SiC Wafer & Die Costs
- Substrate Assembly Cost
- Packaging Cost
- Module Cost
Cost Comparison
- BYD vs Infineon 1200V SiC modules Cost Comparison
Selling Price
Feedback
Related Products
About Yole Group
Full-SiC Power module with sintered chips and advanced interconnections
The latest environmental regulations aimed at lowering average CO2 emissions are fostering a growing inclination toward greater electrification of vehicles and the accelerated adoption of Electric Vehicles/Hybrid Electric Vehicles (xEV). Yole Intelligence anticipates that the xEV market will achieve a milestone of 49.5 million vehicles by 2028, with Battery Electric Vehicles (BEV) constituting 24.1 million of this total.
Evolution in BEV high-voltage integration has been remarkable, transitioning from stand-alone units a decade ago to the prevalent use of the 3-in-1 Integrated Power Unit and e-axle today. This progression is particularly evident in the leadership of Chinese OEMs. Taking a further stride in innovation, BYD distinguishes itself by making an 8-in-1 system, marking a noteworthy advancement in high-voltage integration in electric vehicles.
BYD has adopted a self-sufficiency strategy by boosting in-house 8-in-1 system design and assembly namely its inverter’s SiC power module with advanced interconnection and sintered chips.
In this context, Yole SystemPlus provides a complete reverse costing study of the BYD 1200V SiC Power Module in the inverter of BYD’s 8-in-1 Powertrain Domain Controller of Denza D9 BEV: BM840F12B34U2.
This module uses an innovative trench SiC MOSFET technology, an assembly based on copper interconnection and a sintering process for enhanced electrical performance. The module has a voltage of 1200V and a nominal current rating of 500A.
Supported by a complete teardown of the module, our report reveals BYD’s technology choices for its assembled SiC Power Module as well as the design of the SiC MOSFETs inside it.
This report also provides insights into the module's technology, manufacturing cost, and selling price, as well as an estimated manufacturing cost of all the module’s parts.
Included is a physical comparison of the module chip with similar 1200V SiC MOSFET dies; as well as a cost comparison of 1200V SiC power modules from BYD and Infineon (HybridPACK™ Drive FS05MR12A6MA1B) found in MOBIS Rear Inverter of Hyundai Ioniq 5 (previously analyzed by Yole SystemPlus’ Teardown Tracks).
- BYD
- Infineon
Key features
- Detailed photos
- Precise measurements
- Materials analysis
- Manufacturing process flow
- Supply chain evaluation
- Manufacturing cost analysis
- Estimated selling price
- Physical and cost comparisons with dies/ module.
Product objectives
- Reveal BYD technology choices for its SiC power module.
- Provide exhaustive physical, technology, and manufacturing cost of all the module’s parts including the design of the SiC trench dies inside it.
- Physical comparison of the module chip with similar 1200V SiC MOSFET dies.
- Cost comparison of 1200V SiC power modules from BYD and Infineon (HybridPACK™ Drive FS05MR12A6MA1B) found in MOBIS Rear Inverter of Hyundai Ioniq 5 (previously analyzed by Yole SystemPlus’ Teardown Tracks).