These days, most of the CEMs HP3070 systems are old and some are not well kept up, their pins cards may fail in the middle of the run and our production line may halt for days. I believe in optimizing the config file to use as fewer hybrids cards and power supplies as possible. The …
I had to program PIC28F8722 micro controller at ICT test station. I found a solution for less than $300. and some custom fixture designs. The main board design must have a 5 pins header which has ICT test points. MCLR, DATA, SCLK, GND, VCC. I found a PIC program to go on the internet for …
I always set tolerances for all passive components in the board file to 1% to make sure IPG generates all guarding possible. For testing stability, I change all resistors to 10% and capacitors to 20%. If a board has many components with the same values, chances are, the tolerance for these components are generated the …
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If we want our analog tests to run much faster, make sure our config file is using control xt instead of control plus. The control plus can run with control xt compiled system, but not the other way around. If the program is develop with control plus, in order to use control xt option, we …
These days, the backup tapes have been obsoleted, we don’t use them to back up and restore any more. Most of the working directories are backed up in Gzip files and transferred through ftb website, it’s fast, efficient and more reliable than these tapes. So, we normally pack the folder in tar format then gzip …
1. Connect the device through the HPIB of the power supply HP6624A (HPIB) or whatever your power supply model may be. To check the hpib bus, go to shell as root: /opt/hp3070/bin/btio -hpib -scan (this will tell you which HPIB exists, it should display your HP6624A or HP6621A). [non-members]please log in to continue reading… Thanks[/non-members][members] …
All our dual level ICT fixtures are pneumatic. They use compressed air to actuate the air solenoid to push down the gate instead of pulling down like vacuum. Some of the CEMs site may need to have wiring installed for the pneumatic fixture to work with the vacuum port controller in the system. The pneumatic …
Since the world is changing, so is our flash program firmware. We need to update our hex file in the flash program whenever a new ECO comes out. This is how to update the hex file embedded in the program and verify files. Use cuteftp to transfer the new hex file from computer to the …
For any types of testers, it doesn’t matter if it’s functional testers or ICT testers, design for testability is always the key of having great products. It doesn’t matter how good a design is, if it’s not testable to produce quality and high yields product, it’s not a good design. The best products must be …