Stephen Chang
Analyst · B. Riley Securities
Thank you, Mike, and good afternoon, everyone. I will start with an update on our business and then provide detailed segment highlights for the September quarter. As Mike noted in discussing our earnings power, our products revenue and market share today are but a point in time, but the capability we have built ensures that we can maintain and continue this leadership for years, if not decades, to come. Our technical expertise enables us to develop a broader variety of power discrete and Power IC technology platforms. We invest in core competencies of silicon packaging and ICs as a foundation of our product technology. This allows us to expand our product offerings and deliver complete power solutions for more target applications.
Over the years, we have evolved from a component supplier to a solution provider. We have become a valued supplier to multiple Tier 1 customers. We sell into the #1 global smartphone maker, #1 gaming console manufacturer, #1 global home appliance manufacturer and #1 power tool provider. In the September quarter, in several end markets, demand for our products was greater than we could fulfill. To manage these component shortages, we strategically shifted production to meet customer needs while driving growth in both revenue and gross margin. Furthermore, we are relentlessly focused on customer engagement. This focus on strategic customers enables us to leverage the current environment to stay closer to Tier 1 customers, optimize product mix and capacity allocation and deliver strategic value to those customers. Like our industry peers, we are managing longer lead times and limited component availability, but we believe that our competitive market position, strong customer relationships and supply chain responsiveness enable us to meet these commitments.
We are taking a 3-pronged approach to grow our capacity to meet the growing demand for our products. First, we are expanding capacity and enhancing the technological sophistication of our Oregon fab. We will invest approximately $100 million, including $20 million to upgrade our capabilities and $80 million to expand capacity. When complete, we believe this expansion will enable us to generate an additional $70 million in annual revenue. We expect the new capacity to come online in the December quarter of 2022. Importantly, we expect the investments to strengthen our competitive advantage in our target markets. This is a part of our long-term strategic plan for sustainable growth and technology improvement. With current challenges in the semiconductor industry, especially the global capacity shortages, we want to own and control our supply chain as much as possible.
Second, the Phase 1 capacity ramp at our JV fab in Chongqing is complete. We reached the target run rate of $150 million of annualized revenue in the September quarter. The JV Company is well into the process of determining how it will implement Phase 2. Third, we have close relationships with multiple foundry partners and are actively working with them for additional wafer supply.
Now let me drill down into each of our business segments. Unless otherwise noted, the following figures refer to the September quarter of 2021. Let's start with Computing. Revenue was up 17.5% year-over-year and up 1.5% sequentially. This segment represented 42% of our total revenue. As expected, end demand for our products was strong. To best allocate capacity, we shifted resources and production to support the Computing segment, especially notebook, tablet and desktop applications. On the other hand, the graphics card business was temporarily down sequentially as we strategically shifted production capacity to support other segments in the face of component shortages. Looking ahead, we expect Computing revenue to be up modestly in the December quarter. We expect strong demand to continue at our ODM customers for desktop. In addition, we expect our graphics card business to rebound and grow significantly from the September quarter level. This will be partially offset by a slight decline in notebook as we allocate our resources to support growth in our desktop and graphic cards.
Turning to the Consumer segment, which was 21.8% of total revenue, up 11.4% year-over-year and up 8.9% sequentially. This segment played out as expected. Gaming grew double digits due to both share gain and system growth at a major customer with both our MOSFET and Power IC products in multiple sockets. Our overall home appliance business also demonstrated solid growth across different geographies. We shipped higher volumes of module solutions to key home appliance customers in Korea, China and Japan. Looking to the December quarter, we expect the Consumer segment to increase by a low single-digit percentage with strength in gaming and home appliances.
Next, let's discuss the Communications segment, which was 13.8% of total revenue, up 26.8% year-over-year and up 13.9% sequentially. This segment played out as expected as demand for battery protection was strong at two of our global smartphone customers to support the launch of new models. That said, our shipments to China declined due to an inventory cleanup in the quarter. For the December quarter, we expect Communications segment sales to decrease by mid-single digits sequentially. While the major smartphone players in Korea and the U.S. are expected to reach peak production in the December quarter, we expect China smartphone shipments to decline as smartphone manufacturers are navigating the component shortage. We continue to believe we are in an excellent position for growth in battery protection over the next couple of quarters as we have secured designs at all the major global smartphone makers.
Finally, let's talk about the Power Supply and Industrial segments, which accounted for 20.3% of total revenue. This segment was up 51.5% year-over-year and up 4.6% sequentially. The solid growth was due to a couple of factors. First, the demand for AC-DC power supplies for laptop adopters was strong with incremental medium voltage design engagement with major power supply customers in Taiwan; second, demand for our industrial solutions from a major power tool customer in the U.S. was strong. Power tools is an emerging application for us with great synergy, given our product strengths in low- and medium-voltage products targeting battery management and brushless DC motors. Looking ahead, we expect the Power Supply and Industrial segment to decrease slightly in the December quarter, due largely to the temporary slowdown in our AC-DC power supply business attributable to end system production shortages and offset by growth in solar power.
In sum, we are off to a great start to fiscal year 2022. Our business momentum continues and we have the right strategy in place, which is generating strong results. Despite the ongoing industry-wide semiconductor component shortages, we are working diligently to deliver products to our customers. Our track record of consistent execution gives us confidence in our ability to capitalize on the many growth opportunities ahead of us.
With that, I will now turn the call over to Yifan for a discussion of our fiscal first quarter financial results and our outlook for the next quarter.