4DS Memory (ASX:4DS) - Managing Director & CEO, Dr Guido Arnout
Managing Director & CEO, Dr Guido Arnout
Source: 4DS Memory
Market Herald logo

Subscribe

Be the first with the news that moves the market
  • Semiconductor developer 4DS Memory (4DS) says it has fixed technical issues with the production of its memory cell technology
  • 4DS and imec have been working closely to address the etch residue problem, which saw a partial failure of the second platform lot
  • The device needs to undergo electrical testing, which can only be performed on the third platform lot
  • 4DS expects to reach the etch step in the next few weeks
  • 4DS shares climb 22.1 per cent to 8.3 cents

Semiconductor developer 4DS Memory (4DS) shares jumped after the company announced it had fixed technical issues with the production of its memory cell technology.

The company said over the first quarter of 2022 it worked closely with imec to address the technical issues.

4DS said the pair undertook a memory stack etch mask change and further performed etch process optimisation to resolve the etch residue problem that resulted in the partial failure of the second platform lot.

Third platform lot memory stack etch mask modification and further optimisation of the etch process using the new mask demonstrated the “successful elimination” of the etch residues that caused electrical shorting of the memory devices in the second platform lot, according to the company.

Final verification of the process improvements needs electrical testing, which can only be performed on the third platform lot.

4DS said the mask change and process improvements “dramatically increased the likelihood that the third platform lot will be successfully processed”.

“As a result, the company and imec jointly decided to implement these improvements and continue to process the third platform lot, which was put on hold prior to reaching the etch process,” the company said.

Following the completion of the technical work, the manufacturing of the third platform lot
incorporating imec’s megabit memory platform with transistors will resume.

4DS said the lot was expected to reach the etch step in the next few weeks, while the third platform lot’s out-of-fab date remained July 2022.

4DS shares were trading 22.1 per cent higher at 8.3 cents at 10:58 am AEST.

4DS by the numbers
More From The Market Herald
Countplus (ASX:CUP) - Incoming CEO, Hugh Humphrey

" Hugh Humphrey appointed CEO of Countplus (ASX:CUP)

Investment services company CountPlus (ASX:CUP) has appointed Hugh Humphrey as the company's CEO, effective July 1.

" ASX employee tests positive for Covid-19

The ASX says an employee has contracted Covid-19.

" ASIC launches official investigation into ASX market outage

The ASX has confirmed today it is officially under investigation from the Australian Securities and Investments…

" ASX sheds more light on last week’s market tech failure

The Australian Securities Exchange has shed some more light on the nature of last week's market…