CSP LED diagnostic head numerous "! The truth is......

Recently, CSP ran out of a name "CSC", so that the industry has pursued a media. Looking back on the development of CSP in recent years, progress can be said to be still in a primary level, but there are many names. As a senior CSP sensitive, read all the articles about CSP, it is found that for CSP repeat the most is "CSP is not a new technology in the semiconductor field has been developed for a long period of time, but as LED people I would like to ask you know semi conductor how did CSP come? In order to present a more comprehensive interpretation of the current CSP LED, not only to dig graves CSP online Jun also find a lot of experts to analyze today's CSP LED.

The origin of CSP

CSP was originally developed by Mitsubishi Co of Japan in 1994, digital camera launched in September 1996, SONY took the lead in the use of CSP devices manufactured by Sony Corp, Japan IT company and NEC company, which opened a prelude to a CSP device in 1997 put into production.

The original definition of CSP mainly includes three categories: the first is the definition of Electronic Industry Association of Japan - chip area and package area was more than 80% of the package; second, the U.S. Department of defense J-STK-012 standard components supply center -- LSI product area is less than or equal to 120% of the area of the LSI chip package; third. Matsushita Electric Industrial Company - length and length chip LSI packaging products, the product is less than 1mm.

And to the LED industry, in 2007 is to reduce the package volume, improve and enhance the reliability of the chip heat dissipation problem introduced by Lumileds, LED and CSP technology industry will be defined as the traditional package volume with the same LED chip, or volume of not more than LED and 20% chip package, complete function.

Although the Lumileds CSP is introduced to the LED industry, but in 2012 did not cause great concern in 2007, to 2013 LED was much industry attention, of course it was with industry price war competition, we are thinking about how to save the cost, while CSP can omit a lot of a lot of links, hit it off, LED industry this opens the CSP screen mode.

CSP's name and application evolution

CSP talked about the LED industry in the screen mode, today, I would like to talk about the king of the screen so long CSP current progress in the end how?

Starting from the PA screen vocabulary, with the current CSP related to the main flip, NCSP, CSP, WLP, CSC.

CSP said the first thing to say because the flip, flip flip chip is the core of CSP, determines the structure of CSP, there are products such as flip stent grafting, Ruifeng FEMC products, but CSP is inverted, this is a necessary but not sufficient condition.

Why CSP appeared so early, but now it is beginning to come to the fore, the reason for the inversion. Flip is the domestic name, called crystal technology abroad. As the industry leader LED Nichia is 2015 to begin large-scale development of flip chip market. Flip until now there are still many problems, although many companies are pushing, but in the current state, although the performance of the device packaged is really good dress, but the flip chip process is complex and high cost due to the pull yield is low, and can not make up for the increased cost of proportion.

Finish flip, we talk about this year to bring new identity NCSP CSP, CSP, WLP, CSC. NCSP I personally feel is a gimmick, because the flip chip is not mature enough, and the dress chip technology is very mature, many related equipment is complete, and CSP is the fire, so a compromise NCSP scheme, literally close to CSP, close to many solutions for size LED here, rather than the structure.

The CSP, CSC, WLP and WICOP are CSP, which is the CSC packaging process is different, and WLP is the wafer level, in general, are CSP, but each of the packaging process is different.

The emergence of the new identity of the new term, perhaps because the LED industry innovation difficult! But the LED application was really escalating, especially the LED industry, the gross profit margin is low, high margin market has become the new machine LED, CSP because of the presence of small size advantage, in the mobile phone market flash mettle, has also become a standard mobile phone and mobile phone market in recent years, the market demand continues to flash increase, some mobile phone needs a few more than 10.

The CSP batch application time development plan

But at present, in addition to the flash market, other markets are still slowly penetrate, and this is where the amount of lighting market is the fastest.

With the batch application terminal market, enterprise CSP LED device has three echelon: the first tier is based on LUMILEDS, Nichia, Samsung, OSRAM, Seoul semiconductor semiconductor and led by CREE; the second tier is based on crystal power, new century photoelectric enterprises in Taiwan; third echelon: Elec-Tech, Hongli, can other mainland enterprises LED crystal.

But with the rapid development of the mainland LED industry in recent years, CSP LED in Taiwan did not enjoy the high gross profit of the mainland, the CSP LED has risen rapidly. In recent years, the new technology, the reaction speed is fast, which is from the MIicroLED of the meeting can be seen, whether it is business or enterprise or the LED panel are quietly layout for CSP LED enterprises is early layout and smooth catch.

Big coffee eyes CSP LED

CSP development today, how to express the statements of a school online Jun industry development, this online juufa