naked white 1W. I must be crazy... (pics)

Well, I finally destroyed one of my one watters. I tried to pop it off the star mount and .....ya know. Anyway, I just cant throw it away, the chip is still good so I AM going to make it work. First thing I noticed is that the chip is ALOT smaller than it looks (1mm square)

I had to use my kids microscope to do any work.


Once I started working on it the phospher coating started flaking off, so I removed it. The pointy thing in the pic is a pin.


The die lights, and quite blue too. the only problem I see is getting the wires on it. I am thinking of soldering a single strand of stranded wire on the pad next to the chip and using a conductive epoxt to connect to the chip. MAN, I MUST BE CRAZY.... But as you can see it lights up.


If anyone has any usefull ideas, let me know.

Jeff

I just relinked the pics

Those are some really cool pictures.
Good luck.

Coool. Topless and still lights up. /ubbthreads/images/graemlins/smile.gif Well, its time for a blue 1w mod!

Woah! After you've ripped off everything, it looks super small! Say.. can we like squeeze 3 or 4 into the spaace of what a normal LS would take? /ubbthreads/images/graemlins/smile.gif

I dunno Nerd... the pedistal is mabyee 3mm diameter and wider lower down. the problem remains, how to wire it up. there was a little bit of gold wire on the thing when I started. But stupid me, I tried to solder to them (they just melted away.

Thats ok. This one had super glue haze all over it from a mod gone bad...

I've one LS LD which I stripped of it's dome and phosphor too. It's a very cool shade of blue. A lil irritating on the eyes. I chucked it into a 2C mag and ran it off 1AA and 1 used 123. /ubbthreads/images/graemlins/smile.gif Good way to use up used 123s... /ubbthreads/images/graemlins/smile.gif

OK. does anyone know if there is a GOOD conductive epoxy or something like that I could use to make a bridge between the chip points and the solder pads??? I already put some JB weld on the aluminum sink up the the chip base to isolate any conductor from the heat sink.
jeff

[ QUOTE ]
Nerd said:
Woah! After you've ripped off everything, it looks super small! Say.. can we like squeeze 3 or 4 into the spaace of what a normal LS would take? /ubbthreads/images/graemlins/smile.gif

[/ QUOTE ]

Nerdy -- I believe you may call that the 5W LS.

Not really. The low dome has a smaller cup. So that's not so much space for that many die. The HD has a different type of cup. Notice that in the picture, the cup is hexagonal.

Nerdy -- I must be missing something. The LED die on the Lambertians are also hexagonally shaped. The way I understood it, the batwings differed only in the shape of their dome. ??

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Why the forth segment only lights up half?

beats me. mabyee all 1W whites do that. not sure.

The die connects through several spots on the bottom side. To get them all to light, there was like four or five spots you need to make connection to...(been there /ubbthreads/images/graemlins/wink.gif )

The die connects through several spots on the bottom side. To get them all to light, there was like four or five spots you need to make connection to...(been there /ubbthreads/images/graemlins/wink.gif )

Oh, and you still have the thermal transfer issue you will need to take care of.

Is it just me or is image station linking the wrong pictures here?

[ QUOTE ]
Nerd said:
Is it just me or is image station linking the wrong pictures here?

[/ QUOTE ]

Same thing is happening to me.

-Mike