Category Archives: Quality


Apr23
How many dimple need to be used for keypad metal dome?

Last article I mentioned that my company applied the metal dome without dimple as keypad contact solution just like the cell phone but we had trouble and met keypad press insensitive  issue. Now we solved the problem by adding the … Continue reading

Apr22
Why metal dome keypad must design dimple on it?

Recently my company phased in the metal dome as rubber keypad contact solution. This metal dome solution had been implemented to many cell phone keypad solution also. Better key press feeling, longer life and good reliability is the benefit to … Continue reading

Apr21
Design for Flex cable(FPC) Trace Pattern

Many FPCB designer are not familiar with the manufacturer process and limitation.  I always found design does not meet DFx requirement and insist on their design and finally bring lot of quality issue after mass production. Here I ask FPCB … Continue reading

Apr20
What potentioal cuase make HeatSeal Connector peel off?

Recently there were many missed segment defect of the HSC (Heat Seal Connector) solution LCM returned from the field. As experience tell the reliability of HSC bonding  is not so good for the industrial product. Because this cable is easily … Continue reading