On-chip Test Structures

Integration of dedicated physical structures or built-in circuitry within semiconductor devices to enable characterization of process variations, material properties, electrical leakage, or device performance.

4,368 US filings from 754 companies since 2023 · 2023: 1,103 · 2024: 1,368 · 2025: 1,292 · 2026 YTD: 605

Semiconductor Testing

Top companies

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

#	Company	Since 2023	2023	2024	2025	2026 YTD	YoY
1	Taiwan Semiconductor Manufacturing Company, Ltd.	207	51	54	76	26	+40.7%
2	SAMSUNG ELECTRONICS CO., LTD.	199	43	58	63	35	+8.6%
3	TEXAS INSTRUMENTS INCORPORATED	135	48	47	33	7	-29.8%
4	ADVANTEST CORPORATION	127	27	44	42	14	-4.5%
5	INTEL CORPORATION	122	32	36	33	21	-8.3%
6	CHANGXIN MEMORY TECHNOLOGIES, INC.	97	54	35	8	·	-77.1%
7	International Business Machines Corporation	79	31	11	27	10	+145.5%
8	STMicroelectronics International N.V.	78	9	22	33	14	+50.0%
9	NANYA TECHNOLOGY CORPORATION	64	23	24	13	4	-45.8%
10	ROHDE & SCHWARZ GMBH & CO. KG	56	12	13	19	12	+46.2%
11	SK hynix Inc.	56	11	23	14	8	-39.1%
12	Micron Technology, Inc.	55	17	19	11	8	-42.1%
13	MPI CORPORATION	54	10	19	17	8	-10.5%
14	Synopsys, Inc.	50	13	11	20	6	+81.8%
15	Microfabrica Inc.	42	13	27	2	·	-92.6%
16	POINT ENGINEERING CO., LTD.	42	7	11	14	10	+27.3%
17	Advantest Test Solutions, Inc.	41	21	7	11	2	+57.1%
18	TEKTRONIX, INC.	38	10	13	7	8	-46.2%
19	TSE CO., LTD.	38	9	11	12	6	+9.1%
20	Infineon Technologies AG	37	9	13	13	2	0.0%
21	NXP B.V.	37	5	9	13	10	+44.4%
22	QUALCOMM Incorporated	37	6	14	8	9	-42.9%
23	XILINX, INC.	37	11	10	12	4	+20.0%
24	AEHR TEST SYSTEMS	36	6	11	17	2	+54.5%
25	CHROMA ATE INC.	36	14	5	11	6	+120.0%