MIKE ROSS wrote in a message to Andy Ball:

 MR> I don't know who makes it but it does have a logo that looks a bit 
 MR> like a clover leaf rotated onto its left side. 

I could be mistaken,  but I believe that's Samsung.

 MR> Consider for example that a HYB511000BJ is a 1Mx1 DRAM so if the
 MR> 41000J follows a similar pattern it should be a 1M x 4 chip but
 MR> ICBW too. 

 MR> BTW I found another 4M stick with it: LH64400BK-70 and it's also on
 MR> a 72 pin stick with 8 chips like the other but made by Sharp. I
 MR> don't usually mix and match but they seem to go okay together.

My guess on these would be 4Mx1 rather than 1Mx4.  Do these sticks have
foil patterns for an additional 8 chips on the reverse side?

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