As smartphones have entered a mature phase, the pace of innovation has slowed down. Additionally, the hardware and software of smartphones have reached a certain level, leading to longer lifespans and indirectly causing longer replacement cycles. On the other hand, to boost sales, brands and retailers have opened up old-for-new exchange programs, which has helped stabilize the growing market for second-hand and refurbished phones. Furthermore, the recent global economic downturn and consumer spending constraints have further driven the growth of this market.

The second-hand and refurbished phone market has been gradually strengthening, even eroding the performance of the new smartphone market. According to MediaTek, a major mobile chipmaker, the total volume of the iPhone second-hand and refurbished market is estimated to be around 50 million to 100 million units annually.

TrendForce estimates that the sales volume of this second-hand and refurbished market will be between 150 million to 200 million units this year, accounting for approximately 10-15% of the overall handset sales.

Looking ahead to 2024, due to the global economic situation not being overly optimistic, as well as the increased demand for smartphones in emerging regions, the market is expected to continue to contribute to growth. We estimate that the second-hand and refurbished market will reach a sales performance of over 200 million units in 2024.

On the other hand, the second-hand and refurbished market is still mainly dominated by high-end phones from Apple and non-Apple brands with higher resale value. Among them, Apple accounts for about 50% of the market, followed by Samsung.

Apple’s plan to release the first Apple Watch with a Micro LED display in 2024 has reportedly been delayed until the second half of 2025 or later due to production challenges. However, this delay shows Apple’s cautious approach to technology and evaluation. This delay shows Apple’s prudence and assessment of technology, but it also brings new opportunities for Ennostar, which was previously considered only a second supplier

According to market research firm DSCC’s, the new Apple Watch will initially adopt Osram’s Micro LED chips, and Epistar(under Ennostar), will be responsible for shipping related components. However, some insiders have revealed that Osram’s technology produces Vertical Chips, which are different from Epistar’s technology and are unlikely to be used in the same project simultaneously.

Epistar’s current chip technology is Flip Chips, Ennostar has stated that American brands are currently collaborating with European suppliers, and Epistar “may have a chance” to be the second supplier, however, ‘the second supplier” may not have a chance to join the cast until 2026.

DSCC mentioned that Epistar is responsible for shipping related components, which differs from what Ennostar said “second supplier”. Technically speaking, Ennostar is more likely to be a “parallel competitor” to Osram since the process of Vertical Chips versus Flip Chips are not on the same technical base. From this perspective, obviously, Apple has dual strategies on Micro LED from adopting Osram’s Vertical Chips as the core and maintaining the technical connections with Taiwanese manufacturers at the same time, which Ennostar may have a shot to ramp up to the main supplier again to take off the “second source” label.

Does the Micro LED process hint at Apple’s product line planning?

Micro LED chips now are mainly categorized into Vertical, Lateral, and Flip chips. According to industry insiders, Osram began developing Micro LED in 2019 but only focused on vertical chips due to patent issues. Currently, only 3 companies in the world have patents for Vertical Chips, and Osram is likely to gain a competitive advantage in Micro LED through these patents. As a result, the company is targeting the development of watches, phones, and AR glasses, and has been collaborating with Apple on watch projects in Germany since 2019. The size of the watch chip produced in collaboration with Apple is approximately 8um.

Meanwhile, Osram announced in 2021 that it is expanding its LED factory in Kulim, Malaysia with an investment of approximately $850 million, and plans to produce Mini LED and Micro LED chips in its 8-inch factory, with mass production expected in 2024. The company also mentioned last year that it plans to produce small-sized products by 2024, and this small-sized product is very likely to be Apple’s Apple Watch.

As for companies such as PlayNitride, Epistar, and Chinese manufacturers that are working on Micro LED technology, they are all using flip chips. PlayNitride stated that they have the opportunity to produce Lateral Chips as client’s request, and Vertical Chips may be produced for AR and VR in the future. “It still depends on the customer’s application to determine what kind of chips matches their products, e.g. Vertical Chips can bring higher PPI with a smaller size of chips.” PlayNitirde said.

Due to differences in the position of electrodes among Vertical chips, Lateral chips, and Flip Chips, give their own pros and cons in each production process. The advantage of Vertical Chips is that they can be made smaller, and the yield rate is higher as the size gets smaller. However, it is difficult to test and repair them once all the Micro LEDs are arranged and connected for testing, so the yield rate may decrease during the bonding process.

Vertical Chips are now suitable for use in the fields of watches, smartphones, and AR glasses, while Lateral Chips are used for other applications like automotive or large displays. However, AUO plans to produce Micro LED watches using Flip Chips, showing that different technologies can still be applied to similar products. In the future, using Vertical Chips may be necessary for developing AR glasses, which may explain why Apple is using this technology in its Apple Watch.

With the dawn of the era of Micro LED mass production, what will be Apple’s strategy?

Apple’s influence in display technology development affects other brands’ adoption attitudes. To reduce risks, Apple is not taking sides as different technologies and processes are involved, which may pose challenges to transfer technology or backplane technology, affecting the entire Micro LED supply chain. For the next generation Apple Watch, Apple is mainly working with Osram for Vertical MicroLED Chips, but may also collaborate with Taiwanese companies on Lateral or Flip Chips in the future.（Image credit: TechNews）

Due to weak demand in the mobile phone market, the decline in prices of mobile phone panels, especially AMOLED panels, has accelerated this year. Under overcapacity pressure, the price decline has exceeded expectations.

According to our survey, some brands actively introduced Ramless DDI flexible AMOLED panels in the second half of last year, trying to narrow the price gap with rigid AMOLED panels and increase usage rates through DDI cost optimization. However, the inventory level of flexible AMOLED panels with Ram is high, and the price decline has also accelerated, while also narrowing the price gap with rigid AMOLED panels.

The current prices update:

• Rigid AMOLED panels are around USD 18-20.
• Flexible AMOLED panels with Ram are priced at around USD 25 or even lower, which is a significant drop from the average of USD 30 or more last year.
• The above price reduction of flexible AMOLED panels with Ram has led to a price reduction of Ramless DDI flexible AMOLED panels, which are currently priced at around USD 20-22.

The significant price reduction of flexible AMOLED panels with Ram has dimmed the cost advantage of Ramless DDI flexible AMOLED panels, and currently only Xiaomi has adopted them. Other first-tier brand customers remain cautious.

In addition, due to the momentum of flexible AMOLED panel price declines, whether the price of rigid AMOLED panels will follow suit has become a challenge for SDC. We believe that SDC should follow the price reduction strategy and may even approach the level of USD 15 in the second half of the year after abandoning the USD 20 threshold.

However, there are two reasons why we believe SDC may find it difficult to reverse the current situation even with a price reduction strategy. These reasons include:

• Weak overall smartphone demand this year.
• Chinese brand customers will gradually adjust their procurement strategy to focus on domestic panel factories. For SDC, how to dispose of rigid AMOLED panel capacity in the medium to long term will be a major issue.

Due to the sustained pressure on AMOLED panel prices, LTPS LCD panel prices are also forced to continue to decline, and it is expected that prices will continue to drop from the current range of USD 10-15 and may even fall below USD 10.

On the other hand, because LTPS LCD prices have approached a-Si LCD panel prices, it has aroused the interest of some brand customers. Under the overall weak market conditions, adopting low-cost LTPS LCD specifications may help improve revenue performance or stimulate demand by upgrading from HD to FHD specifications at the same price.

Chinese semiconductor companies are once again quickly making their presence known in the power semiconductor market, particularly in the fields of MOSFET, IGBT, and SiC.

Among various types of power ICs and power devices, MOSFET and IGBT-based voltage-controlled switching devices have become the mainstream products, accounting for more than 70% of power devices due to their ease of use, fast switching speed, and low power loss. They are mainly used in end markets such as automobiles, industry, and consumer electronics.

On the other hand, SiC can further assist in breakthroughs in EV technology and has become the most popular alternative technology route in the market, with its strong material properties such as low resistance, high temperature resistance, and high voltage resistance.

From IGBT and MOSFET to SiC, there has been a surge in demand in recent years, indicating the enormous growth potential of power semiconductors for automotive use. This has attracted many Chinese players to enter the competition.

IGBT: Explosive Growth for Chinese Players

As the core component of new energy vehicles, demand for IGBT is increasing. Looking at the financial reports of overseas large factories, the top five IGBT chip manufacturers in Q1 of this year still face tight delivery times, with the longest reaching 54 weeks.

The rapid growth of the EV and energy storage markets has resulted in a supply-demand imbalance for SiC MOSFETs. Major international IDM factories’ production capacity won’t be able to meet the demand in the coming years. Consequently, Infineon, STMicroelectronics, and ON Semiconductor are focusing on local supply in Europe and America. This has led to Chinese suppliers replacing automotive IGBTs for the domestic market.

In 2022, the IGBT industry in China saw a surge in demand. After a two-year auto chip shortage starting in 2020, the supply of IGBTs has become even tighter. In the second half of 2022, IGBT surpassed automotive MCU and became the biggest supply bottleneck affecting automotive production expansion.
According to the latest statistics from the China Association of Automobile Manufacturers, China’s new energy vehicles continued to explode in 2022, with production and sales reaching 7.058 million and 6.887 million vehicles, respectively, a year-on-year increase of 96.9% and 93.4%, maintaining the world’s first for eight consecutive years.

Many representative companies in China continue to strengthen their IGBT technology research and development:

• In the first half of 2022, StarPower Semiconductor developed a new generation of 650V/750V IGBT chips for the new car standard based on the seventh-generation microgroove Trench Field Stop technology, which passed customer verification and began mass production in the second half of 2022.
• Silan is keeping up with the trend of new energy development and has entered the field of vehicle-grade IGBT modules and SiC MOSFETs through a private placement financing. Its vehicle-grade IGBT and other products have been verified and have been delivered in bulk.

Since the end of 2021, the IGBT capacity of companies such as CRRC Times Electric, Silan, and Huahong Grace has been ready, and their revenue has also been rising. Combining the data of major companies with revenue exceeding 10 billion yuan that have released their 2022 financial reports, the power device companies are CRRC Times Electric, with 18.034 billion yuan, and Hua Run Micro, with 10.06 billion yuan.

MOSFET: Demand Doubles with the Rise of EVs

MOSFETs are used in high-voltage applications, such as DC-DC and OBC, to convert and transmit electrical energy. On average, there are now over 200 MOSFETs per car. As cars become more advanced and incorporate features like ADAS, safety, and entertainment, the number of MOSFETs per car is expected to double to 400 in high-end models.
With major companies such as Renesas gradually withdrawing from the low and medium-voltage MOSFET market, Chinese players have been accelerating their entry into the automotive supply chain. Currently, companies such as Silan and Nexperia are continuously expanding their global market share of MOSFETs, while other companies such as China Resources Microelectronics, Yangjie Electronic, Good-Ark Electronics, Jilin Sino-Microelectronics, NCE Power Co, New Jie Energy, Oriental Semi and Jiejie Microelectronics have been continuously developing in the field of automotive-grade MOSFETs in recent years.

Chinese IDM companies have expanded their market share by offering high-voltage super junction products:

• Silan has completed the development of a 12-inch high-voltage super junction MOS process platform.
• China Resources Microelectronics has achieved revenue of over 100 million yuan in the first quarter of 2022 for high-voltage super junction products.
• Yangjie Electronic has achieved a significant increase in MOS orders for automobiles in the first quarter of 2022.

SiC: Entire Supply Chain Enters the Game

The growth of EV and energy storage markets has been causing a supply shortage in SiC. As major international IDMs are expected to expand their SiC capacity and potentially engage in more M&A activities, Chinese manufacturers are simultaneously make more investments throughout SiC supply chain:

• IDM: Sanan Optoelectronics, Inventchip, Silan, and Sichain are trying to transform the IDM model by improving their processes but face development obstacles.
• Foundry: Besides Fabless manufacturers are participating in the SiC market, foundry companies such as X-FAB are also actively developing related businesses, especially Taiwanese manufacturers. After EPISIL Hong Young Semiconductor and ProAsia Semiconductor have also entered the market.

XinYueNeng a new foundry invested by Geely Auto, has also attracted market attention. Its related projects are expected to be put into operation in the second half of this year, and its partner AccoPower is already producing SiC power modules for vehicles.

It’s also important to note the development of the SiC specialized production equipment market. Some key equipment, such as the epitaxial reactor, is experiencing delivery delays, which may impact the expansion plans of suppliers like Tianyu Semiconductor and EpiWorld. On the positive side, it still presents great opportunities for local equipment manufacturers.

Read more:

• SiC vs. Silicon Debate: Will the Winner Take All?
• The M&A battle for SiC: Who’s the Top Acquirers?

DRAM Spot Market:

SpecTek, a subsidiary of Micron, has slightly increased the prices of its products in the spot market. Additionally, sellers have indicated that they will not slash prices further for low-priced chips. As a result, the momentum of trading activities has stagnated. Like buyers in the contract market, buyers in the spot market are adopting a wait-and-see approach. Facing significant losses, DRAM suppliers need to enlarge the scale of their production cuts in order to stabilize prices. DDR4 products are also experiencing a serious inventory glut, and their prices could keep going down due to the weak overall demand. Conversely, DDR5 products are experiencing a tighter supply due to the PMIC incompatibility issue, thereby leading to an increase in their prices. The average spot price of mainstream chips (i.e., DDR4 1Gx8 2666MT/s) fell by 0.06% from US$3.235 the previous week to US$3.233 this week.

NAND Flash Spot Market: 

Inquiries for some packaged dies were once prosperous with market anticipation gradually turning to focusing on the rebound of prices under suppliers’ production cuts, however, the level of demand is seen primarily from short-term and urgent orders at an insignificant expansion of transactions, where overall prices are still dropping at a decelerated pace. 512Gb TLC wafer has dropped by 0.76% in spot prices this week, arriving at US$1.436.