Ticket #1093 (closed defect: wontfix)

Opened 8 years ago

Last modified 5 years ago

Epoxy on the SPI flash

Reported by: mlj Owned by: kimquirk
Priority: high Milestone: Future Release
Component: hardware Version:
Keywords: Cc: mlj, ivan
Action Needed: never set Verified: no
Deployments affected: Blocked By:
Blocking:

Description

Ivan has requested this for security reasons (can't unsolder the SPI flashes and override security). Jim is searching for the right epoxy and will pass on to QCI or Wad or MLJ on completion.

Change History

Changed 8 years ago by frief

using a BGA (ball grid array) package might do as well?

Changed 8 years ago by jg

No, we really want serious damage to occur if you try to remove the flash; even BGA's can be unsoldered, particularly with a package with as few pins as an SPI flash (for which I doubt there is a BGA package).

Changed 8 years ago by jg

  • cc mlj, ivan added

OK, I consulted with my college buddy at Dow.

Dow is not in the business of making adhesives/epoxies themselves: rather, making the chemicals that are used by manufacturers of such materials.

The manufacturers that make the adhesives for the electronics industry for these sorts of applications are:

  • Henkel
  • National Starch (Ablestick)

These are the top two in the industry.

I have left contact information with both of these. When I hear more, I'll update this.

Changed 7 years ago by jg

  • priority changed from normal to high

Changed 7 years ago by frief

eventually Glob-Top or one of the component sealing stuff from www.panacol.com ?

Changed 7 years ago by kimquirk

  • owner changed from jg to kimquirk
  • verified unset

Changed 7 years ago by kimquirk

  • milestone changed from Trial-2 to FRS

Changed 7 years ago by kimquirk

  • milestone changed from First Deployment, V1.0 to V1.1

Quanta has not agreed to add this epoxy. It is too costly and time consuming for their mfg process and they don't believe it works.

I'll move this bug out (rather than close it); but I don't think this is a solution we can pursue. Alternatives?

Changed 5 years ago by rsmith

  • status changed from new to closed
  • next_action set to never set
  • resolution set to wontfix
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