Various OP177 die images
![](https://41j.com/blog/wp-content/uploads/2019/03/DSC00216.jpg)
I bought some OP177G in SOIC8 on eBay. The strange thing about them was that while I bought 10 on the same piece of cut tape, the packages were different… I figured there was a high probability that they were fake.
I decapped them using an Olfa cutter (box cutter) blade. All things considered this decapping process works surprisingly well. With some effort, I think you can do better (@marcan42 has used this method with reasonable results which is what gave me the idea in the first place).
They were imaged under the same inspection microscope (Amscope) that I use for soldering. While the images are not great, the feature sizes are huge so it doesn’t matter so much.
I also purchased some OP177s from Digikey… turns out that while the packages look kind of fake, the dies appear to be identical!
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More pictures follow:
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