There is also a reason why they did not use FR4 boards (fibreglass). In fact, there are several reasons:
1. FR4 boards are very hard to cut to size.
2. You need expensive 0.8mm tungsten drill bits as FR4 boards can blunt a normal drill bit after drilling one and a half hole.
3. Tungsten drill bits needs hi-speed drills.
4. They are also fragile and if you are not careful when it snaps (usually unexpectedly), it becomes a flying splinter.
Unfortunately, out of the two boards, only one came out well. The other had many underdeveloped and broken tracks. But the one that is 'OK' needs worktoo as some of its tracks are also underdeveloped. I could get them done professionally but it costsRM54.00 each. For 1 inch x 0.5 inch, I don't think so.
Compared with the earlier revision, both of them are of the same size. What I did was to redesign the board to accept the bigger SOIC chip. I don't like it either but
I've had it with the SSOP chips and the stupid adaptor.
I've had it with the SSOP chips and the stupid adaptor.
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