2SA979 - matched pnp BJT : weekend die-shot

2 separate dies inside. Die size 435x435 µm.

Phillips NE564N - PLL : weekend die-shot

This is another early and widely used PLL. Unlike CD4046 it can operate at whopping 50MHz.
Die size 2332x1519 µm.

Fairchild BSP52 - NPN Darlington BJT : weekend die-shot

Die size 781x780 µm.

Ti CD4046BE - CMOS PLL / Oscillator : weekend die-shot

We used to think that 4000-series or 7400-series standard logic are all relatively simple ICs. Ti CD4046BE is probably the most complex of these - It's a PLL with internal VCO and even zener voltage reference for external voltage regulator. It could still be useful today, if you're fine with it's 1.4Mhz frequency limit.

Die size 2271x2007 µm.



Metal etch photos are added
Read more →

Diodes/Zetex BCW66H - 0.8A NPN BJT : weekend die-shot

Die size 556x556 µm.



Read more →

BB OPA134PA - FET input opamp : weekend die-shot

Update: It is suggested that this is likely a fake (remarked) chip. Chip on the image is TL051.
BB OPA134PA is a trimmed, low-noise low-distortion (0.00008%) opamp with FET input stage.
Die size 1592x1077 µm.

Microchip MCP6024 - CMOS R2R 10MHz opamp : weekend die-shot

Microchip MCP6024 is a CMOS R2R 10 MHz opamp with input offset trimmed down to 0.5mV.
2 identical dies inside plastic package.