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posted by martyb on Monday June 24 2019, @08:00AM   Printer-friendly
from the I-hear-what-you-did-there dept.

At Micron's memory chip fabrication facility in the Washington, DC, suburb of Manassas, Virginia, the entire manufacturing area is blanketed in electronic detectors in all their various forms. But the primary purpose isn't to keep intruders out or anything so prosaic. "A lot of them are microphones," a spokesman for Micron said. "They listen to the robots."

It turns out that there are thousands of microphones throughout the facility, or "fab," as silicon manufacturing plants are commonly known. There are microphones inside the giant $70 million cameras that imprint the component layout on the silicon surface of a memory chip. There are microphones lining the tracks of the robot controlled railways that carry colorful plastic FOUPs (front opening universal pods) along the ceiling throughout the plant. There are microphones near essentially every moving part in the facility.

All those thousands of microphones are listening for signs of wear—for variances to develop in the noises made by the machines—so that maintenance can be scheduled before anything breaks and causes downtime. Downtime, as you might imagine, is about the worst thing that can happen to an automated chip-making facility.

https://arstechnica.com/information-technology/2019/06/manufacturing-memory-means-scribing-silicon-in-a-sea-of-sensors/


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Related Stories

2019: DRAM Cheaper... For Now 12 comments

RAM has never been cheaper, but are the historic prices here to stay?

RAM prices are at historic lows. But it hasn't always been that way. If you upgraded your PC's memory in 2018, you might be kicking yourself right now. This writer certainly is. I upgraded from an old, faithful 16GB of 1,600MHz DDR3 to a 16GB kit of Corsair Vengeance RGB 3,000MHz DDR4. It cost me the equivalent of $200 at the time. That same kit today is just $75. What the hell happened? As of mid-2019, prices have finally gotten under control and are currently at an all-time low, making this a great time to upgrade. But is it here to stay?

[...] Ben Miles, managing director of award-winning British system builder Chillblast, explained that "more and more memory foundries [are focusing] on flash type memory to feed the insatiable smart device and mobile phone industries. Turning a DRAM factory into a flash factory or vice versa takes many weeks, so when companies have chosen their path, its[sic] non-trivial to turn it back. When demand outstrips supply, module vendors are forced to stockpile DRAM chips and offer more money to secure stock, driving up prices."

All of this led to a huge increase in RAM prices between 2016 and 2018. Gamers Nexus put together an in-depth report on this at the start of 2018 and showed the near 200 percent increases in price for some modules, both DDR3 and DDR4. Looking at PCPartPicker's historic trend graphs, we can see that early-2018 was the peak for RAM pricing, but that many speeds and kits took many months to even approach a noticeable fall in price throughout the year, only really falling hard in 2019.

[...] "We don't see the current low price of memory being the new normal," Ben Miles of Chillblast said. "As profits fall in DRAM due to abundance, factories switch focus back to flash, so we can expect peak demand in Q4 to see rising prices once again." [Corsair's public relations manager Justin Ocbina] was a little more hesitant to forecast price rises, but he did suggest that other industries were beginning to pick up the slack for the slowing smartphone market. That could lead to rising prices at some point in the near future.

There's also DDR5 to consider. We've heard a lot about the potential capabilities of this next-generation memory for years, and that's something that Corsair will be switching its attention to in the years to come. Ocbina said that from the get-go, it is expected to dethrone DDR4 from its premium, performance spot. That gap will only widen as more kits are launched following the new standard's debut.

"Historic" low prices (that are about the same per GB as in 2012 or 2015)? Nothing DDR5 and a flood, power outage, or nitrogen leak can't fix.

See also: Micron's DRAM Update: More Capacity, Four More 10nm-Class Nodes, EUV, 64 GB DIMMs

Previously: Expect 20-30% Cheaper NAND in Late 2018
Weak Demand for DRAM Could Lead to Price Decreases in 2019
DRAM Prices Will Continue to Decline in Q1/Q2 2019
Huawei Blacklisting Predicted to Cause DRAM Prices to Drop 15%

Related: Manufacturing Memory Means Scribing Silicon in a Sea of Sensors


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  • (Score: 3, Interesting) by takyon on Monday June 24 2019, @10:58AM

    by takyon (881) <takyonNO@SPAMsoylentnews.org> on Monday June 24 2019, @10:58AM (#859305) Journal

    The advanced manufacturing processes built into the Manassas fabrication plant are reflected in the plant's output. Doros said that so far, the company has seen 25% fewer quality events, along with an improvement in time to a yield of 25% and an increase in manufacturing output of 10%.

    Let's hope these are reflected in falling DRAM prices.

    Also, too bad that 450mm wafers are dead in the water.

    --
    [SIG] 10/28/2017: Soylent Upgrade v14 [soylentnews.org]
  • (Score: 3, Interesting) by Rosco P. Coltrane on Monday June 24 2019, @03:30PM (1 child)

    by Rosco P. Coltrane (4757) on Monday June 24 2019, @03:30PM (#859373)

    I listen to everything I run - be it my bicycle's drivetrain, the motor and X/Y table in my milling machine... When you listen to a machine long enough, you get to know it's not "feeling well" long before something actually goes wrong.

    It's impressive that this process has been automated. I didn't know it could be - always assumed it was a typically human skill.

    • (Score: 2) by linkdude64 on Tuesday June 25 2019, @12:47AM

      by linkdude64 (5482) on Tuesday June 25 2019, @12:47AM (#859560)

      This is one reason the silence of new cars unnerves me. While driving, I always have part of my hearing dedicated to listening to my engine and drivetrain components, so when driving a car that I can't hear anything from, I'm almost distraught. I'd bet that I could hear something was wrong in an engine that was overheating before I would smell burning if I had the AC on. A few seconds can make a world of difference.

  • (Score: 0) by Anonymous Coward on Tuesday June 25 2019, @07:49PM

    by Anonymous Coward on Tuesday June 25 2019, @07:49PM (#859826)
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