- 1ch touch sensor IC : EM01(SOT-26), SS02(SOT-26), SS501(SOT-26)

- 3ch touch sensor IC : EM02B(14-SOP)

- 4ch touch sensor IC : EM02(20-SOP)

- 6ch touch sensor IC : ES06C(14-SOP)

- 8ch touch sensor IC : ES08C(16-SOP), SS01(32-MLF)

- 10ch touch sensor IC : ES10C(20-SOP)

- 12ch touch sensor IC : ES12C(20-SOP)

- 16ch touch sensor IC : ES16C(32-MLF)

Capacitive Sensing method switching

´ëºÎºÐÀÇ ¿ì¸® ÁÖº¯¿¡ ¹°Ã¼ ¶Ç´Â ¹°ÁúµéÀº  °ø±âº¸´Ù ³ôÀº À¯ÀüÀ²(permittivity)À» °¡Áö°í ÀÖ´Ù. ÀÌ·¯ÇÑ ¹°Ã¼³ª ¹°ÁúÀº ijÆнÃÅÍ¿Í °°ÀÌ ¾î¶² À¯Àüü(dielectric)¿¡ Á¢ÃËÇÏ°Ô µÇ¸é ¹°Ã¼°¡ °¡Áö°í ÀÖ´Â ÀüÇÏ·®¿¡ ÀÇÇØ Á¤Àü¿ë·®À» »ý¼ºÇÏ°Ô µÈ´Ù. ÀÎüÀÇ °æ¿ìµµ ¸¶Âù°¡Áö·Î ¼Õ°¡¶ôÀÌ ¾î¶² µµÃ¼¸é¿¡ Á¢ÃËÇÏ°Ô µÇ¸é Á¤Àü¿ë·®À» »ý¼ºÇÏ°Ô µÇ°í ÀÌ ¹Ì¼¼ÇÑ º¯È­¸¦ ¿¡·¯¾øÀÌ °ËÃâÇÏ¿© ½ºÀ§Ä¡·Î ÀÀ¿ëÇÒ ¼ö ÀÖµµ·Ï °í¾ÈµÈ Á¦Ç°ÀÌ ´ç»çÀÇ Á¤Àü¿ë·® ¼¾¼­ IC ÀÌ´Ù.

               Practical Human Finger Touch Motion               Automatic Mass production Touch Tester

Basically most of kinds a materials has a high permittivity then air. The material which has a dielectric node has a characteristics of energy charge like a capacitor. Using this characteristic, Capacitive sensor switch can identify touch of human body.

At the touch node, with a human touch, it has a variation of capacitance between node and ground. The variation of capacitance is detected by switch IC and make a TTL output. The way of sensing can be done by touch or non-touch. Compare to touch sensing method, non-touch method need more precise detecting technology. Defending of permittivity of material which place between node and human body. May have to adjust sensitivity.

Now we are developing active adjust sensing technology. For future, many kinds a switch application will be change from mechanical way to soft touch way.¡¡