Prosecution Insights
Last updated: April 19, 2026
Application No. 17/856,206

SOURCE AND DRAIN REFRACTORY METAL CAP

Non-Final OA §102§103
Filed
Jul 01, 2022
Examiner
JAHAN, BILKIS
Art Unit
2817
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Intel Corporation
OA Round
1 (Non-Final)
88%
Grant Probability
Favorable
1-2
OA Rounds
2y 6m
To Grant
99%
With Interview

Examiner Intelligence

Grants 88% — above average
88%
Career Allow Rate
788 granted / 892 resolved
+20.3% vs TC avg
Moderate +10% lift
Without
With
+10.5%
Interview Lift
resolved cases with interview
Typical timeline
2y 6m
Avg Prosecution
43 currently pending
Career history
935
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
51.4%
+11.4% vs TC avg
§102
25.8%
-14.2% vs TC avg
§112
14.3%
-25.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 892 resolved cases

Office Action

§102 §103
Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Attorney Docket Number: AE1622-US Filling Date: AE1622-US Inventor: Haratipour et al Examiner: Bilkis Jahan DETAILED ACTION In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. Election/Restrictions Applicant’s election without traverse of Species I, Fig. 2H, claims 1-20 in the reply filed on 10/27/25 is acknowledged. Claims 21-25 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected method, there being no allowable generic or linking claim. Claim Rejections - 35 USC § 102 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claim(s) 1-8 and 9 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by More et al (US 2018/0174913 A1). Regarding claim 1, More discloses a semiconductor die (Figs. 16 and 21), comprising: a substrate 50 (Para. 22); a channel layer 56 (Para. 19) on the substrate 50; a gate structure 94 (Para. 53) over the channel layer 56; a source region 82 (left, Para. 30) and a drain region 82 (right), the source region 82 (left) coupled to the channel layer 56 on a first side of the gate structure 94 and the drain region 82 (right) coupled to the channel layer 56 on a second side of the gate structure 94, the source region 82 (left) and the drain region 82 (right) comprising silicon and germanium (Para. 30); a first cap layer 84 (Para. 33, 30, B-doped SiGe, left) on at least one of the source region 82 (left) or the drain region, the first cap layer comprising germanium and boron 84 (elements 84 can be formed same as 82 which is B-doped SiGe, Paras, 30, 33); and a second cap layer (liner, Para. 45) on the first cap layer 84 and above at least one of the source region 82 or the drain region 82, the second cap layer comprising a refractory metal (Para. 45, tantalum). Regarding claim 2, More discloses the semiconductor die of Claim 1, wherein the refractory metal comprises molybdenum, niobium, rhenium, tantalum (Para. 45, liner), or tungsten. Regarding claim 3, More discloses the semiconductor die of Claim 1, wherein: the first cap layer 84 is on the source region 82 (left) and the drain region 82 (right), wherein the first cap layer includes a first source cap 84 (Paras. 30, 33, left) and a first drain cap 84 (right), wherein the first source cap 84 (left) is on the source region 82 (left) and the first drain cap 84 (right) is on the drain region 82 (right); and the second cap layer (liner, Para. 45) is above the source region 82 and the drain region 82, wherein the second cap layer includes a second source cap (liner, Para. 45, left) and a second drain cap (liner, Para. 45, right), wherein the second source cap (liner, Para. 45) is on the first source cap 84 (left) and the second drain cap (liner, Para. 45) is on the first drain cap 84 (right). Regarding claim 4, More discloses the semiconductor die of Claim 3, further comprising: a first conductive contact 120 (Para. 52) on the second source cap (liner, Para. 45); and a second conductive contact 120 (right) on the second drain cap (liner, Para. 45). Regarding claim 5, More discloses the semiconductor die of Claim 1, wherein the gate structure includes: a gate electrode 94 (Para. 53); a first dielectric sidewall spacer 86 (Fig. 10B, Para. 27) on a first side of the gate electrode 94; and a second dielectric sidewall spacer 86 on a second side of the gate electrode 94. Regarding claim 6, More discloses the semiconductor die of Claim 1, wherein the source region 82 and the drain region 82 are p-type doped with boron (Para. 30) or gallium. Regarding claim 7, More discloses the semiconductor die of Claim 1, wherein the channel layer 50, 56 comprises silicon (Para. 14). Regarding claim 8, More discloses the semiconductor die of Claim 1, further comprising a transistor (Fig. 21B), wherein the transistor includes the channel layer 56, the gate structure 94, the source region 82, the drain region 82, the first cap layer 84, and the second cap layer 84. Regarding claim 9, More discloses the semiconductor die of Claim 8, wherein the transistor is a P-type transistor (Para. 30). Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. Claim(s) 10-19 and 20 are rejected under 35 U.S.C. 103 as being unpatentable over More et al (US 2018/0174913 A1) in view of Monchiero et al (US 2010/0194470 A1). Regarding claim 10, More discloses an integrated circuit (Figs. 16 and 21), comprising: the integrated circuit die (Figs. 16 and 21) includes one or more transistors, wherein at least one transistor (Figs. 16B, 21B) includes: a channel layer 56 (Para. 19); a gate electrode 94 (Para. 53) over the channel layer 56; a source region 82 (Para. 30, left) and a drain region 82 (right), the source region 82 coupled to the channel layer 56 on a first side of the gate electrode 94 and the drain region 82 (right) coupled to the channel layer 56 on a second side of the gate electrode 94, the source region 82 and the drain region 82 comprising silicon and germanium (Para. 30); a first source cap 84 (Paras. 30, 33, left) and a first drain cap 84 (right), wherein the first source cap 84 (left) is on the source region 82 and the first drain cap 84 (right) is on the drain region 82, wherein the first source cap 84 and the first drain cap 84 comprise germanium and boron (Paras. 30, 3); a second source cap (liner, Para. 45) and a second drain cap (liner, Para. 45), wherein the second source cap (liner is on 84) is on the first source cap 84 (left) and the second drain cap (liner is on 84) is on the first drain cap 84 (right), wherein the second source cap and the second drain cap comprise a refractory metal (liner, Para. 45). More does not explicitly disclose a package substrate; and an integrated circuit die coupled to the package substrate. However, Monchiero discloses a package substrate 415 (Fig. 4, Para. 41) ; and an integrated circuit die 405 (Para. 38) coupled to the package substrate 415. Monchiero teaches the above modification is used to make package and reduce current leak of the device (Fig. 4, Para. 44). It would have been obvious to one of the ordinary skill of the art before the effective filling date of the claimed invention to combine More structure with Monchiero Package substrate as suggested above to make package and reduce current leak of the device (Fig. 4, Para. 44). Regarding claim 11, More discloses the integrated circuit of Claim 10, wherein the refractory metal comprises molybdenum, niobium, rhenium, tantalum, or tungsten (liner, Para. 45). Regarding claim 12, More discloses the integrated circuit of Claim 10, further comprising: a first conductive contact 120 on the second source cap (liner, Para. 45); and a second conductive contact (liner, Para. 45) on the second drain cap (liner, Para. 45). Regarding claim 13, More discloses the integrated circuit of Claim 10, wherein the source region 82 and the drain region 82 are p-type doped with boron (Para. 30) or gallium. Regarding claim 14, More discloses the integrated circuit of Claim 10, wherein the channel layer 56, 50 comprises silicon (Para. 14). Regarding claim 15, More discloses the integrated circuit of Claim 10, wherein the at least one transistor is a p-channel metal–oxide–semiconductor transistor (Para. 15). Regarding claim 16, More discloses an electronic device (Figs. 16 and 21), comprising: the integrated circuit includes one or more transistors, wherein at least one transistor (Figs. 16B, 21B) includes: a channel layer 56 (Para. 19); a gate electrode 94 (Para. 53) over the channel layer 56; a source region 82 (Para. 30, left) and a drain region 82 (Para. 30, right), the source region 82 coupled to the channel layer 56 on a first side of the gate electrode 94 and the drain region 82 coupled to the channel layer 56 on a second side of the gate electrode 94, the source region 82 and the drain region 82 comprising silicon and germanium (Para. 30); a first source cap 84 (Paras. 30, 33, left) and a first drain cap 84 (Paras. 30, 33, right), wherein the first source cap 84 is on the source region 82 and the first drain cap 84 is on the drain region 82, wherein the first source cap 84 and the first drain cap 84 comprise germanium and boron (Paras. 30, 33, 84 may form as the 82); a second source cap (liner, Para. 45, left) and a second drain cap (liner, Para. 45, right), wherein the second source cap (liner, Para. 45, left) is on the first source cap 84 (left) and the second drain cap (liner, Para. 45, right) is on the first drain cap 84 (right), wherein the second source cap and the second drain cap comprise a refractory metal ((liner, Para. 45). More does not explicitly disclose a board 415 (Fig. 4, Paras. 41, 19, 25); and an integrated circuit 405 (Para. 38) coupled to the board 415. Monchiero teaches the above modification is used to make package and reduce current leak of the device (Fig. 4, Para. 44). It would have been obvious to one of the ordinary skill of the art before the effective filling date of the claimed invention to combine More structure with Monchiero board as suggested above to make package and reduce current leak of the device (Fig. 4, Para. 44). Regarding claim 17, More discloses the electronic device of Claim 16, wherein the refractory metal comprises molybdenum, niobium, rhenium, tantalum, or tungsten (liner, Para. 45). Regarding claim 18, More discloses the electronic device of Claim 16, wherein the at least one transistor further includes: a first conductive contact 120 (left) on the second source cap (liner, Para. 45); and a second conductive contact 120 (right) on the second drain cap (liner, Para. 45). Regarding claim 19, Monchiero discloses the electronic device of Claim 16, wherein the integrated circuit further includes processing circuitry, communications circuitry, or memory circuitry (Para. 25), wherein the at least one transistor is included in the processing circuitry, the communications circuitry, or the memory circuitry (Para. 22). Regarding claim 20, Monchiero discloses the electronic device of Claim 16, wherein the electronic device is a mobile device, a wearable device, a computer (Para. 13), a server, a video playback device, a video game console, a display device, a camera, or an appliance. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to BILKIS JAHAN whose telephone number is (571)270-5022. The examiner can normally be reached Monday-Friday, 8:00 am-5 Pm. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Marlon T Fletcher can be reached at (571)272-2063. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. BILKIS . JAHAN Primary Examiner Art Unit 2817 /BILKIS JAHAN/Primary Examiner, Art Unit 2817
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Prosecution Timeline

Jul 01, 2022
Application Filed
Feb 24, 2023
Response after Non-Final Action
Nov 29, 2025
Non-Final Rejection — §102, §103 (current)

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

1-2
Expected OA Rounds
88%
Grant Probability
99%
With Interview (+10.5%)
2y 6m
Median Time to Grant
Low
PTA Risk
Based on 892 resolved cases by this examiner. Grant probability derived from career allow rate.

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