Cost for automatic diode testing ?
Cost for automatic diode testing ?
(OP)
Hi,
I would like to set up a system for automatic diode testing. As I know, the system should cover a tester and a handler at least. (If my understanding is wrong, please correct me.) Could any one tell me the estimated expense for setting up such a system? And who are the major suppliers in the field?
Best Regards,
Tiffany
I would like to set up a system for automatic diode testing. As I know, the system should cover a tester and a handler at least. (If my understanding is wrong, please correct me.) Could any one tell me the estimated expense for setting up such a system? And who are the major suppliers in the field?
Best Regards,
Tiffany





RE: Cost for automatic diode testing ?
What are the currents and voltages you want to test to?
What type or types of diodes?
Just functional testing?
RE: Cost for automatic diode testing ?
The tested device is Schottky Barrier Diode with surface mount package or power pack.
Basic DC parameters like forward voltage, breakdown voltage and leakege current should be tested. If I would like to test all the typical parameters shown on data sheet, what additional testing ability sohuld be added in?
In order to have the flexibility for testing various Shottky Barrier Diode, I would like to cover commercial available currents and voltages, as for testing ability.
RE: Cost for automatic diode testing ?
If you are a user, the you should know what parameters are critical for your application. Then, again, if you are a user, why are you repeating tests that presumably have already been done at a lower cost? You are going to incur substantial cost in duplicate testing, maintenance of test hardware, validation and calibration of same and the cost of the body that runs the test hardware. I'm failing to see the payback, since it's usually substantially cheaper to have the supplier do this type of testing, particularly for tests they should already be doing..
TTFN
RE: Cost for automatic diode testing ?
I am a new comer in this field. I appreciate your patience if I am asking some stupid questions.
RE: Cost for automatic diode testing ?
This means that you have to extract the part from the existing packaging, test it, and then put it back into tape and reel for loading into the assembly machine.
I would think this is going to be expensive.
It's a long time since I worked in the semiconductor industry, but this sort of thing was not cheap 15 years ago, and I bet it's not much cheaper now!
RE: Cost for automatic diode testing ?
The only possible compelling reason for doing incoming electrical test is if you are screening for some sort of performance that is not specified by the supplier or the supplier's quality is poor. Even in the latter case, it's usually cheaper and more reliable to switch suppliers altogether than to try and catch poor quality at your end.
TTFN
RE: Cost for automatic diode testing ?
RE: Cost for automatic diode testing ?
It may be cheaper to specify a better diode or get a better designer...
<nbucska@pcperipherals.com>