Q: How small a CCD camera can go? Is11.5X50mm or 22X23 mm the limitation that MINTRON is able to produce? 

A: CCD camera size highly depends on 4 major components: the size of CCD sensor, DSP, CDS, and vertical driver. These chips must be manufactured by different semiconductor technology so that they are able to merged into one single IC dice. Now, CCD sensor, the major part of cameras, was shrunk from 2/3" to 1/2",  1/3",  1/4", 1/6" even  to  1/7". However, a smaller the CCD size has the worse sensitivity , so a 1/6" CCD has less sensitivity than 1/4". Therefore, 1/4" CCD will maintain as main stream for few years. A 1/4" CCD has a package size of 10X10mm and will become the dominate components. If DSP packaged in 15X15mm QFPGA that s larger than CCD, it will further enlarge the camera board. Nowadays, most of the companies can only shrink their CCD camera board to 44X44mm.

More: 

Due to above points, the minimum size for a color camera board needs as least one of 44X44mm board or two. Panasonic was the first company able to break through this barrier. Panasonic used its unique COB (chip on board ) technology to build the first 32X32mm color board camera and later shrank the broads to 22X26mm and maintained as world leader for one year until MINTRON came out a board camera with BGA  technology and reduced the board size to 22X23 mm. BGA technology is much more stable than COB on board camera so MINTRON's 22X23mm size camera has been in the lead for eight months.

Because MINTRON is the first CCD camera maker to develop DSP chips in 112 pin 10x10mm BGA package. This is essentially nobody can compete so far.
 Moreover, MINTRON broke its own record to build a 1/4" CCD square board camera in size of 18X36.5mm ( 54C5 ), a round board camera in 22mm diameter, and also designed a 1/6" CCD camera in size of 11.5X50mm. 11.5mm is only 1.5mm bigger than the size of CCD sensor and DSP chip, so the size of a CCD camera has reached its physical limit for the moment. Will MINTRON stop here? of course not!