4925 industry semiconductors founded september 2001 headquarters hsinchu taiwan key people tim liu chairman tim liu president products integrated circuits bridge controllers website www.jmicron.com jmicron technology corporation chinese ; pinyin zh w i k j is a taiwanese fabless technology design house based in hsinchu taiwan . as a manufacturer of integrated circuits they produce controller chips for bridge devices . 1 contents 1 history 1.1 2001 2007 1.2 2008 to present 2 products 2.1 bridge controllers 3 market reception 4 see also 5 references 6 external links history edit 2001 2007 edit the company was founded in september 2001 and its headquarters is in hsinchu taiwan . the company also operates an advanced r & d center based out of irvine california united states . in 2002 the company begins development of their usb 2.0 to sata bridge controller technology . 2 jmicron begins developing ssd technology in 2006 launching their first generation ssd controller the jmf601a 602a towards the end of 2007 . jmicron s ssd controller is widely adopted by many ssd manufacturers such asus eee pc corsair 3 ocz and transcend . jmicron was one of the first 4 companies to provide an ssd controller chip to these companies allowing them to produce reasonably priced mlc ssds . 2008 to present edit in early 2008 a write latency issue is discovered with the jmf601a 602a that occurs when system data is nearly full and the host continues to write data . soon after the company released the jmf601b 602b to address the write latency problem . 5 also in 2008 jmicron showcases a number of peripheral products . this includes the jmb353 a hi speed usb & 1394a to sata ii external hdd controller chip ; this device is the first to feature an integrated 1394a phy chip . also included in the showcase is the jmb38x series a pcie to card reader & 1394 controller chip the jmb211 a gigabit ethernet phy controller chip the jmb352 a hi speed usb & esata to 2 port sata ii external hdd controller chip and the jmb325 a 1 to 5 port sata ii port multiplier with hardware raid . 6 in 2009 the jmf612 is released and sees popularity throughout 2010 in its use in a number of industry ssds . 7 in particular 2009 was a landmark year for jmicron in that the company achieved the top ranking as a supplier for external hdd and sata pata bridge controllers shipping roughly 35 million and 15 million units respectively . 2 in october 2010 jmicron was scheduled to list on the taiwanese gre tai securities market gtsm . 2 also in 2010 a gartner tandem research report reveals jmicron to be first in interface controller chip market share . 8 after developing its own physical layer and high speed technology over the preceding years because of flat growth in the long term jmicron diversifies from the base notebook and motherboard controller business . 2011 is characterized by jmicron winning orders from western digital and samsung electronics for jmicron s usb 3.0 hdd controller with net sales projected to grow 10 % . 9 in late 2011 the jmf661 is released as a third generation jmicron ssd controller and is shown to be an effective entry level product . shortly thereafter in 2013 the jmf667 series is released as a 256 gb capacity 512 mb ddr3 external cache ssd controller . 10 analysis in 2013 reveals that ssd controller technology and high speed transmission interface ic accounts for 29 % and 67 % of jmicron s sales respectively . 2 in june 2014 jmicron announced the jmf670 and jmf670h . both are 4 channel sata ssd controllers capable of supporting up to 512 gb of storage capacity . production was to begin in july 2014 . in the same announcement they showcased the jmf810 a pcie gen ii 2 lane controller and the jmf811 a pcie gen ii 4 lane ssd controller . these controllers are designed for speeds of up to 1.5 gb s in sequential read and 1.2 gb s in sequential write . another announcement was the jms577 which is a usb 3.0 to sata vi gb s bridge controller . the company also showcased their usb 3.1 technology which is expected to achieve data transmission speeds of 10 gbit s doubling the speed of the previous usb gen iii controller . 11 among these announcements included a single chip dual port sata iii raid clone program within the jms561 562 561u product line . 8 throughout 2014 jmicron s jmf667h was reviewed by a number of online review sites like tom s hardware anandtech and tweaktown . in june of 2016 jmicron span off its ssd division to maxiotek corporation a taiwan based company designs and markets ssd controller products . meanwhile jmicron released the jms576 its first usb type c usb 3.1 gen 1 to sata 6gbps bridge controller . products edit bridge controllers edit usb 3.0 12 jms561 usb 3.0 to dual sata iii with raid jms561u usb 3.0 to dual sata iii with clone jms562 usb 3.0 & esata iii to dual sata iii with raid jms567 usb 3.0 to sata iii 6 gb s 3.3 vcc jms568 usb 3.0 to sata iii 6 gb s 2.5 vcc jms578 usb 3.0 to sata iii 6 gb s 2.5 vcc jms576 usb type c 3.1 gen1 to sata iii 6 gb s 2.5 vcc usb 2.0 13 jmb352 usb 2.0 & sata ii to dual sata ii with raid jmb352u usb 2.0 & sata ii to dual sata ii port multiplier jmb355 usb 2.0 & esata & 1394a b to sata ii jm20329 usb 2.0 to sata mask rom jm20337 usb 2.0 to sata & pata sata to pata bi directional 14 jmd330 serial ata sata to pata jmh330 s serial ata pata to sata port multiplier selector and raid 15 jmb320 1 to 2 port serial ata ii port multiplier or 2 to 1 port serial ata ii port selector jmb321 1 to 5 port serial ata ii port multiplier or 5 to 1 port serial ata ii port selector jmb390 1 to 2 port serial ata ii port multiplier & raid 0 1 10 controller jmb393 1 to 5 port serial ata ii raid 5 controller jmb394 1 to 5 port serial ata ii raid 5 controller with lcm interfaces jmb572 1 to 2 port serial ata iii port multiplier or 2 to 1 port serial ata iii port selector jmb575 1 to 5 port serial ata iii port multiplier or 5 to 1 port serial ata iii port selector market reception edit when flash controllers were first offered to ssd manufacturers in 2008 jmicron s early jmf601 and jmf602 models were reported to have issues with write latency causing a stuttering problem . 16 17 the performance problem was attributed to the small buffer size used in the controller . 18 after several corrective releases jmicron released the jmf667h which to date has received generally positive reviews being cited as both competitive and budget friendly 19 when used with the correct type of nand . 20 for instance when paired with toshiba s a19 nand the jmf667h has been shown to be capable of achieving the following metrics 500 mb s for 128 kb sequential read 450 mb s for 128 kb sequential write and reaching 80 000 4 kb iops for both random read and write . 21 the jmf667h has also been found to have very low power consumption with active idle power consumption in the 0.2 0.4 w range depending on the capacity of the controller as well as an average power consumption rating of 0.36 0.78 w when examined in pcmark 7 . 21 certain drives driven by the jmf667h controller such as the kingfast c drive f8 have achieved high scores on independent review sites for example 90 % on tweaktown . 22 see also edit list of companies of taiwan references edit jmicron s solution product list a b c d jmicron technology corp http www.hardwaresecrets.com news 4585 jmicron ssd testing with a19 l85a & l85c memory exclusive interview with jmicron on ssd controllers jmicron new series of high speed interface solutions will be coming computex jmicron jmf612 solid state drive processor a b jmicron technology showcase a variety of storage controller chip in international computer show 1 ssd jmicron jmicron introduces at computex taipei 2014 a series of pcie and sata ssd controllers new features for the usb 3.0 storage products and the usb3 .1 storage controller solutions jmicron s usb 3.0 series product line jmicron s usb 2.0 series product line jmicron s sata to pata bi direction series product line jmicron s port multiplier selector & raid series product line ocz once again slashes the price of core series ssds g.skill intel & patriot ssd group test avoid ssds with jmicron s jmf602 controller tweaktown jmicron jmf667h firmware preview testing with l85a l85c and a19 flash by chris ramseyer jmicron jmf667h reference design 128gb & 256gb review by kristian v tt a b jmicron returns the jmf667h controller on four reference ssds by christopher ryan kingfast c drive f8 series 240gb ssd review cheapest tested 240gb drive so far final thoughts external links edit jmicron official website v t e solid state drives key terminology encryption ecc flash file system flash memory slc mlc flash memory controller garbage collection iops mb s memory wear open channel ssd over provisioning read disturb secure erase solid state storage trim command wear leveling write amplification flash manufacturers im flash technologies micron samsung sk hynix joint venture between sandisk and toshiba controllers independent greenliant systems indilinx now part of toshiba ocz jmicron marvell phison pmc sierra sandforce now part of seagate smi captive fusion io hgst stec intel micron samsung seagate toshiba ocz ssd manufacturers list of solid state drive manufacturers interfaces advanced host controller interface ahci fibre channel fc nvm express nvme pci express pcie sata express serial ata sata serial attached scsi sas universal serial bus usb configurations hdd form factors msata m. 2 pci express expansion card thunderbolt mini displayport usb type c u. 2 related organizations incits jedec jc 42 jc 64.8 onfi nvmhci work group usb if sata io sff committee snia sssi t10 scsi t11 fc t13 ata category retrieved from https en.wikipedia.org w index.php title jmicron & oldid 737188168 categories electronics companies of taiwanhidden categories pages using infobox company with unsupported parametersarticles containing traditional chinese language text navigation menu personal tools not logged 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