ENVALITH
山一電機株式会社 logo

YAMAICHI ELECTRONICS CO.,LTD.

6941Prime MarketElectric Appliances

山一電機株式会社 logo
YAMAICHI ELECTRONICS CO.,LTD.6941

Test Solutions

Yamaichi Electronics' core business centered on semiconductor test sockets

PeriodCurrentPreviousChange
Net Sales¥26,424 million¥25,115 million
Operating Income¥7,009 million¥7,112 million
Operating Margin26.5%28.3%
Segment Assets¥5,575 million¥4,942 million
Depreciation¥1,706 million¥1,834 million
Increase in Property, Plant and Equipment and Intangible Assets¥1,152 million¥1,830 million

Business Details

With Burn-in Sockets, Test Sockets, and Semiconductor Test-Related Services as its main products, this segment manufactures and sells IC socket products used in the inspection processes of semiconductors for smartphones, PCs, automobiles, and data centers. In addition to the company's headquarters, overseas subsidiaries in the Philippines and China handle manufacturing, with deployment through a global sales network including the United States, Singapore, Germany, Hong Kong, and Shanghai. In FY2026 (ending March 2026), net sales were ¥26,424 million, making it the mainstay segment accounting for approximately 50.1% of total company sales.

Recent Overview

Net sales increased, but operating income declined slightly due to raw material price increases and delayed investment

In the Test Solutions segment for FY2026 (ending March 2026), net sales increased to ¥26,424 million (up 5.2% year on year), while operating income declined slightly to ¥7,009 million (down 1.4% year on year). In the Test Socket field, demand for smartphones, PCs, automobiles, and wearable devices remained strong. In the Burn-in Socket field, delayed investment in automotive logic semiconductors had an impact, but products for memory semiconductors recovered in the second half. Rising prices of raw materials such as gold and copper put pressure on overall segment profitability.

Key Products

product
Test Socket

Sales of products for smartphones and PCs remained the core driver, with strong performance also seen in products for automobiles and wearable devices. In FY2026 (ending March 2026), demand remained stable and led segment sales.

product
Burn-in Socket

Products for automotive logic semiconductors were affected by delayed investment, but products for memory semiconductors saw a recovery trend as investment resumed in the second half. Rising prices of raw materials such as gold and copper impacted profitability.

service
Semiconductor Test-Related Services

Provides engineering services and after-sales support accompanying the sale of Test Sockets and Burn-in Sockets, supporting customers in optimizing their inspection processes.

Growth Drivers

  • Increasing demand for Burn-in Sockets for memory semiconductors (DRAM) driven by expanding AI and data center investment
  • Continued stable demand for Test Sockets for smartphones and PCs
  • Medium- to long-term expansion in demand for testing of logic semiconductors for automotive ADAS
  • Strengthening of stable supply capability through continued investment in production capacity expansion
  • Steady execution of growth investments based on the 5th Medium-Term Management Plan (FY2027 (ending March 2027) to FY2029 (ending March 2029))

Risks

  • Risk of order fluctuations due to supply-demand and inventory adjustments among semiconductor manufacturers
  • Risk of rising costs due to increasing prices of raw materials such as gold and copper (impact on profitability expected to continue in FY2026 (ending March 2026))
  • Risk of delayed investment for automotive logic semiconductors
  • Risk of profit pressure from yen appreciation
  • Uncertainty in demand due to changes in US trade policy and geopolitical risks (worsening Middle East situation, tariff issues)
  • Risk of supply chain disruption associated with rising crude oil prices

Last updated: June 24, 2026