Balancing Parallel Test Productivity With Yield & Cost


Parallel test is used for nearly every device produced by fabs and OSATs, but it can reduce yield and increase the cost of test boards and operations. This is a well-understood tradeoff for ensuring consistent test accuracy across multiple sites and reducing test time. Collectively, ATEs and multi-site test boards — DUT interface boards (DIBs), probe cards, and load boards — significantl... » read more

Promises and Perils of Parallel Test


Testing multiple devices at the same time is not providing the equivalent reduction in overall test time due to a combination of test execution issues, the complexity of the devices being tested, and the complex tradeoffs required for parallelism. Parallel testing is now the norm — from full wafer probe DRAM testing with thousands of dies to two-site testing for complex, high-performance c... » read more

Delivering On Power During HPC Test


The industry’s insatiable need for power in high-performance computing (HPC) is creating problems for test cells, which need to deliver very high currents at very consistent voltage levels through the power delivery network (PDN). In response, ATE, wafer probe, and contactor vendors are introducing some innovative approaches and test procedures that can ensure robust power delivery to ATE pro... » read more

Chip Industry Week In Review


By Jesse Allen, Gregory Haley, and Liz Allan Bosch, Infineon, and NXP were cleared in Germany to each acquire 10% of the European Semiconductor Manufacturing Co. (ESMC), established by TSMC, solidifying the supply chain against future shortages, particularly for automotive chips. “ESMC intends to build and operate another large semiconductor factory in Dresden, in which the three Europ... » read more

Week In Review: Manufacturing, Test


Packaging and test TrendForce has released its ranking of the top OSATs in terms of sales in the first quarter of 2021. ASE remains in the top spot, followed in order by Amkor, JCET, SPIL and PTI. “Industry leaders ASE and Amkor posted revenues of $1.69 billion and $1.33 billion, which are YoY increases of 24.6% and 15.0%, respectively, in 1Q21,” according to TrendForce. “ASE graduall... » read more

Week In Review: Manufacturing, Test


Fab tools and test KLA has announced the formation of a new business group for its Electronics, Packaging and Components (EPC) businesses. The new EPC group includes the ICOS, Orbotech and the SPTS Technologies organizations. The group will be headed by Oreste Donzella, KLA’s executive vice president. In 2018, KLA acquired Orbotech for $3.4 billion, a deal that included two organizations-... » read more

Week In Review: Manufacturing, Test


Chipmakers Here comes the battle between 5nm and 6nm processes at two foundry vendors—Samsung and TSMC. Meanwhile, Intel is behind and scrambling to get 10nm out the door. (Intel's 10nm is equivalent to 7nm from the foundries.) Last week, TSMC announced delivery of a complete version of its 5nm design infrastructure. TSMC’s 5nm technology is based on a finFET. This week, Samsung anno... » read more

The Best in Test


“The 10 Best Semiconductor Equipment Supplier Rankings for 2018” was recently released by VLSI Research. Teradyne and Advantest placed first and second, respectively, in the large-company rankings, each rating five stars, based on evaluations by customers. Xcerra placed fifth in the focused-company rankings, with four-and-a-half stars. The market research firm also ranked the top vendors... » read more

The Week In Review: Manufacturing


Fab equipment and test VLSI Research has released its top 10 semiconductor equipment supplier ranking in terms of sales in 2016. Applied Materials topped the list again, achieving a growth of 18%. ASML was second, followed by Lam Research, TEL and KLA-Tencor. Fig. 1: Ranking based on 2016 sales. Source: VLSI Research. Unic Capital Management, a Chinese-based private equity fund, announ... » read more