Buying Components From China Has Always Been Appealing, But Until Now,
The Risk Outweighed The Rewards
Theres no doubt about it the supply is deep
and prices are attractive. But unfortunately, thats not the
whole story as examples of misunderstanding, miscommunication and outright
fraud are legendary. Are the components youre buying really what
you think you are buying? If so, China can be a vital source in your supply
chain, but if not, it can be a huge waste of time and money.
Thats where we come in. At Electrospec, we act as your
partner in China. Our affiliates have offices in China, and we know the people,
the culture and the country. We test the products you are looking to buy,
and we verify that the deal you have made is completely legitimate and
above board.
The result is worry-free transactions from start to finish.
Youll get precisely what you think youre getting, and every
product will be tested and shown to be working correctly.
Comprehensive Testing Guarantees Quality.
You have probably heard the stories. A US company purchases
$40,000 in components from a foreign supplier for an amazingly low price.
But when the chips arrive, they cant be used. It turns out the chips
are pulls, re-works or counterfeit, but when the
US company tries to return them, the middle man has vanished. Unfortunately
its far more common than anyone would like to admit.
But that doesnt mean that buying from China isnt
worth it. It is. The cost savings can be simply amazing, but you need
a representative that will test you products and verify for you that youre
getting precisely what you think you are getting. In short, you need someone
to police the suppliers.
At Electrospec, we comprehensively test your purchase with
the most cost and quality- effective process available. Our staff of multi-national
professionals will work closely with you to ensure that you know precisely
what your getting, BEFORE you take delivery. In fact, were so confident
of our testing process, we guarantee quality.
Smooth, Protected Transactions
Your business is fast paced and dynamic. The last thing you
need is to waste time with overseas transactions fraught with delays and
difficulty. When dealing with China, this is often exacerbated by the
language and culture barrier. We partner with agents in China that
allow you to speed through the process like never before completely
free of delays and difficulty.
The result is quick, easy transactions that are completed
correctly, efficiently and easily allowing you to focus on the
core aspects of your business while you save money on electronic components.
Electrical Testing
Chip design, development, manufacturing, and testing/packaging companies spend years
and millions of dollars in developing test platforms for their products. Unfortunately,
they do not share this information or provide technical support unless product is
purchased directly from them.
We know that you do not have years and millions of dollars to spend on every project.
We understand your industry and your requirements – you need answers now about the
functionality about the components you are selling. It has been our sole mission to
provide what you need through in-depth research of how best to meet your requirements.
Full Parametric Test
The highest level of electrical test, full parametric, or full functional (FFT), tests
everything that the component is designed to do. Our test equipment is OEM-level
automated test equipment (ATE) – it is the same equipment that the chip-makers are
using to test the wafers and completed components directly off the production line. ATE
equipment records the output data, and that data is included with the completed test
report.
Direct/Alternate Current Test
Many components, but not all, have direct and/or alternate current characteristics defined
on the device datasheet. The flow of current through a component is very specific and
unique – similar to a human fingerprint. A specific amount of current into certain pins
should result in specific amounts of current flowing out through the output pins. Direct
and alternate current characteristics testing (DCFT and ACFT) programming sends the
specific input current and reads the output currents. There is a strong correlation between
application functionality and DCFT/ACFT.
Functional Test
Functional testing targets the primary functions of a component, if those functions are
working correctly, the supporting parameters are also functioning correctly. This test is
used for very complex components such as microprocessors that cannot be fully tested by
anyone other than the manufacturer without prohibitive cost and set-up times.
One-time programmable (OTP) components, memory, and many signal devices can be
effectively tested using this method using power and signal generators, oscilloscopes,
programmers, and curve tracers. This test generally requires very little set-up time and
cost and is the same testing method used by the chip makers when they have parts
rejected in process or returned from the field.
Continuity Test
The number one cause for electrical failure at the manufacture is for continuity. Crossed
or broken wires, separated solder bonds and wafer damage caused by ESD controls result
in common opens and shorts – the simplest test to conduct identifies manufacturers’ most
common failure mode.
Hardware and Software
Most test procedures, and all of those using the ATE equipment, require a test socket,
load board, and DUT board. Every package-style requires a specific socket, and every
socket requires a load board, which connects the component to the testing board. The
DUT board connects the socket to the testing equipment, and every part number will
require a specific DUT board. DUT boards and load boards are printed circuit boards.
Load boards are designed by our test engineers and specially fabricated by a PCB
contractor. DUT boards are designed and wired by our engineers using a base board
from the test equipment manufacturer.
This is one of the longest procedures in testing the components, and results in most of the
cost. Once the fixture is complete, the component can be attached to the tester and our
engineers will write a test program and debug that program using samples from the
delivered products.