Recently, Japan's INLIFE limited agency announced on its website a list of the most regrettable home appliances surveys. In this survey, 152 20-50-year-old men and women were selected and 5 "most regrettable home appliances" were selected. The number one spot is smart phones that are currently playing a strong role, with 28.3% of respondents choosing. "Obviously my cell phone is newer than my son. Why does he have more functions than mine?" a 45-year-old doctor complained. "Battery is being consumed too quickly. Phones and text messages aren't going to work," said one programmer.
The second highest ranked food mixer and processor accounted for 19.6%. Many of the interviewees stated that the machines that appear to be very useful in TV commercials are not used smoothly in their own hands. They might as well use kitchen knives and chopsticks.
Ranked third and fourth are PC (15.3%) and digital cameras (10.4%). A 25-year-old freelancer said, "Just go to the SNS and look at the news. I'm more comfortable using a tablet." "Too heavy, I'm not going to use my digital camera. The camera's camera function can also be used on the spot." Process pictures," said a 29-year-old female cosmetologist. It can be seen that with the development of science and technology, some functions of PCs and digital cameras are gradually being replaced by other products. If they cannot find their own characteristics, they will soon be eliminated by history.
Ranked fifth is the dishwasher (7.1%). A 31-year-old web design said, “If a person lives, electricity, water, and detergent are too wasted and they are finally washed by hand.†Some people also said that “the family’s meal time is very scattered and not good.†One-time cleaning and noise."
The rate of replacement of electronic products is very fast. There are often novelties flashing into our sights, but how many of them are what we really need? For people who are always new and old, this issue is worth considering.
Control impedance PCB
Many customers asked us what information we need for impedence control PCB.Here,there are two types for PCB manufacturer,a is single impedance ,just one trace ,two holes .and b is differential impedance,it always go with 1 pair (two trace with same width and space). For single impedance,you just tell us the trace width one which layer and what value you require .For differential impedance,trace width/space,layers and value. Our experience engineers will calculate following your instruction with Polar software.We may change trace width/space or stackup ,but please do not worry, if any changes,we will send you to approve before proceeding. Generally,the tolerance is 10%,and more accurate is 8% .All impedance boards ,we will test here and report.
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