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Despite their advantages, these technologies encounter significant difficulties, such as managing wide current ranges in large arrays, overcoming substantial \u201cIR (current\u2010resistance)\u2010drop\u201d issues, and integrating with complementary metal\u2013oxide\u2013semiconductor operating circuits. Herein, an innovative voltage\u2010summation\u2010based CIM (V\u2010CIM) technology is introduced; this technology represents a paradigm shift that employs capacitive coupling at a floating voltage summation node for MVM operations. By using a differential pair of input voltages (|\u0394\n                    <jats:italic>V<\/jats:italic>\n                    |) with opposite signs relative to the reference voltage, the accumulated MVM results at the floating summation node cancel out, eliminating IR\u2010drop. Representing the MVM result as an analog voltage simplifies the neuron circuit design and significantly reduces energy consumption. V\u2010CIM technology is reported with two types of capacitive synaptic devices: read\u2010only and programmable. A prototype V\u2010CIM chip using read\u2010only capacitors is developed, demonstrating the superiority of V\u2010CIM in image classification applications. For programmable capacitive synaptic devices, a memcapacitor device based on logic\u2010compatible embedded flash memory is introduced. The work sheds light on ultralow\u2010power, highly integrated, and highly reliable AI computing systems based on CIM technology.\n                  <\/jats:p>","DOI":"10.1002\/aisy.202500028","type":"journal-article","created":{"date-parts":[[2025,2,17]],"date-time":"2025-02-17T21:29:52Z","timestamp":1739827792000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Voltage\u2010Summation\u2010Based Compute\u2010in\u2010Memory Technology with Capacitive Synaptic Devices"],"prefix":"10.1002","volume":"7","author":[{"given":"Jung Nam","family":"Kim","sequence":"first","affiliation":[{"name":"School of Electrical and Computer Engineering University of Seoul  Seoul 02504 South Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yong Woo","family":"Kim","sequence":"additional","affiliation":[{"name":"School of Electrical and Computer Engineering University of Seoul  Seoul 02504 South Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Boram","family":"Kim","sequence":"additional","affiliation":[{"name":"School of Electrical and Computer Engineering University of Seoul  Seoul 02504 South Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Doo\u2010Hyun","family":"Kim","sequence":"additional","affiliation":[{"name":"Flash Design Team Samsung Electronics Co.  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