Semiconductor Electrical Test

Techniques and apparatus for electrically testing semiconductor devices, integrated circuits, or wafers during manufacturing or post-assembly, including built-in self-test (BIST) and contact reliability assessment.

10,232 US filings from 1,551 companies since 2023 · 2023: 2,922 · 2024: 3,200 · 2025: 2,933 · 2026 YTD: 1,177

Electrical Measurement

Top companies

Ranked by filings in this theme since 2023. 2026 is partial.

#	Company	Since 2023	2023	2024	2025	2026 YTD	YoY
1	SAMSUNG ELECTRONICS CO., LTD.	533	153	145	159	76	+9.7%
2	Taiwan Semiconductor Manufacturing Company, Ltd.	518	145	161	169	43	+5.0%
3	ROHM CO., LTD.	350	76	143	92	39	-35.7%
4	FUJI ELECTRIC CO., LTD.	286	99	85	79	23	-7.1%
5	Mitsubishi Electric Corporation	227	55	76	73	23	-3.9%
6	CHANGXIN MEMORY TECHNOLOGIES, INC.	220	117	76	25	2	-67.1%
7	TEXAS INSTRUMENTS INCORPORATED	208	81	61	56	10	-8.2%
8	SK hynix Inc.	193	58	58	56	21	-3.4%
9	KABUSHIKI KAISHA TOSHIBA	189	61	62	52	14	-16.1%
10	ADVANTEST CORPORATION	186	48	59	62	17	+5.1%
11	RENESAS ELECTRONICS CORPORATION	182	60	45	46	31	+2.2%
12	Toshiba Electronic Devices & Storage Corporation	166	51	52	50	13	-3.8%
13	INTEL CORPORATION	149	42	44	41	22	-6.8%
14	Kioxia Corporation	136	51	35	41	9	+17.1%
15	Semiconductor Energy Laboratory Co., Ltd.	136	42	61	25	8	-59.0%
16	International Business Machines Corporation	128	51	29	37	11	+27.6%
17	NANYA TECHNOLOGY CORPORATION	128	54	39	29	6	-25.6%
18	Infineon Technologies AG	117	41	26	39	11	+50.0%
19	ROHDE & SCHWARZ GMBH & CO. KG	103	26	26	36	15	+38.5%
20	Taiwan Semiconductor Manufacturing Co., Ltd.	98	39	29	25	5	-13.8%
21	STMicroelectronics International N.V.	91	12	20	40	19	+100.0%
22	Micron Technology, Inc.	81	29	26	17	9	-34.6%
23	DENSO CORPORATION	73	16	24	25	8	+4.2%
24	Synopsys, Inc.	65	17	17	23	8	+35.3%
25	TEKTRONIX, INC.	65	16	25	15	9	-40.0%