Alpha and Omega Semi Introduces New RigidCSP Technology for Battery Management Applications
Alpha and Omega Semiconductor has developed a RigidCSP technology where you can decrease the on-resistance while increasing the mechanical strength to reduce breakage during assembly and stress during the lifetime of the battery MOSFET.
Alpha and Omega Semiconductor Limited (AOS) a designer, developer, and global supplier of a broad range of power semiconductors and power ICs, today announced the release of RigidCSP™ for battery management. Alpha and Omega Semiconductor has developed a RigidCSP technology where you can decrease the on-resistance while increasing the mechanical strength to reduce breakage during assembly and stress during the lifetime of the battery MOSFET. The new package technology is ideal for applications such as smartphones, tablets, and ultra-thin notebooks.
“Using RigidCSP technology offers performance improvement with high robustness. RigidCSP can be used for high aspect ratio CSP die size, and RigidCSP can enable an overall reduction in warpage/breakage from assembly board manufacturing”
As requirements increase for higher charging current, then ultra-low electrical resistance is needed for improved performance. In standard WL- CSP, the substrate can be a significant portion of the total resistance on the back-to-back MOSFETs. A thinner substrate will reduce the overall resistance but also will drastically reduce the mechanical strength. This reduction of mechanical strength can lead to more stress during the PCB assembly reflow process, which can lead to die warpage or die crack, which leads to failure in the application.
“Using RigidCSP technology offers performance improvement with high robustness. RigidCSP can be used for high aspect ratio CSP die size, and RigidCSP can enable an overall reduction in warpage/breakage from assembly board manufacturing,” said Peter H. Wilson, Marketing Director of MOSFET product line at AOS.
Technical Highlights
| Part Number | Dimensions | VDS (V) | VGS (±V) | RSS(on) Max (mOhms) @10V |
RSS(ON) Max (mOhms) @8V |
RSS(ON) Max (mOhms) @4.5V |
| AOCR32326 | 6.0mmx2.5mm | 30 | 20 | 2.6 | 2.9 | 4.2 |
| AOCR36330 | 6.22mmx2.5mm | 30 | 20 | 1.4 | 1.6 | 2.8 |
Pricing and Availability
The AOCR32326 and AOCR36330 are immediately available in production quantities with a lead-time of 14-16 weeks.
About AOS
Alpha and Omega Semiconductor Limited, or AOS, is a designer, developer and global supplier of a broad range of power semiconductors, including a wide portfolio of Power MOSFET, IGBT, IPM, TVS, HVIC, GaN/SiC, Power IC and Digital Power products. AOS has developed extensive intellectual property and technical knowledge that encompasses the latest advancements in the power semiconductor industry, which enables us to introduce innovative products to address the increasingly complex power requirements of advanced electronics. AOS differentiates itself by integrating its Discrete and IC semiconductor process technology, product design, and advanced packaging know-how to develop high performance power management solutions. AOS’ portfolio of products targets high-volume applications, including portable computers, flat panel TVs, LED lighting, smart phones, battery packs, consumer and industrial motor controls and power supplies for TVs, computers, servers and telecommunications equipment. For more information, please visit AOS website.
